Modularized mdbc build

The mdbc pom should inherit from oparent.

The top-level pom should not build the jar directly.
It should be a parent pom for mdbc submodules.

The first submodule will be called mdbc-server.

Note: the "mdbc" jar will now be called "mdbc-server".

Change-Id: I4456e659b7494641e5b3cefd540eb62a149b79a4
Issue-ID: MUSIC-175
Signed-off-by: Rob Daugherty <rd472p@att.com>

58 files changed, 12413 insertions, 0 deletions

diff --git a/mdbc-server/src/main/java/org/onap/music/exceptions/MDBCServiceException.java b/mdbc-server/src/main/java/org/onap/music/exceptions/MDBCServiceException.java
new file mode 100644
index 0000000..63ebbcc
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/exceptions/MDBCServiceException.java
@@ -0,0 +1,85 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.exceptions;
+
+/**
+ * @author inam
+ *
+ */
+public class MDBCServiceException extends Exception {
+
+
+    /**
+	 * 
+	 */
+	private static final long serialVersionUID = 1L;
+	private int errorCode;
+    private String errorMessage;
+
+    public int getErrorCode() {
+        return errorCode;
+    }
+
+
+    public void setErrorCode(int errorCode) {
+        this.errorCode = errorCode;
+    }
+
+
+    public String getErrorMessage() {
+        return errorMessage;
+    }
+
+
+    public void setErrorMessage(String errorMessage) {
+        this.errorMessage = errorMessage;
+    }
+
+
+    public MDBCServiceException() {
+        super();
+    }
+
+
+    public MDBCServiceException(String message) {
+        super(message);
+
+    }
+
+
+    public MDBCServiceException(Throwable cause) {
+        super(cause);
+
+    }
+
+
+    public MDBCServiceException(String message, Throwable cause) {
+        super(message, cause);
+
+    }
+
+
+    public MDBCServiceException(String message, Throwable cause, boolean enableSuppression,
+                    boolean writableStackTrace) {
+        super(message, cause, enableSuppression, writableStackTrace);
+
+    }
+
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/exceptions/QueryException.java b/mdbc-server/src/main/java/org/onap/music/exceptions/QueryException.java
new file mode 100644
index 0000000..b698a74
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/exceptions/QueryException.java
@@ -0,0 +1,86 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.exceptions;
+
+/**
+ * @author inam
+ *
+ */
+public class QueryException extends Exception {
+
+    /**
+     * 
+     */
+    private static final long serialVersionUID = 1L;
+    @SuppressWarnings("unused")
+	private int errorCode;
+
+
+    /**
+     * 
+     */
+    public QueryException() {
+        super();
+    }
+
+    /**
+     * @param message
+     */
+    public QueryException(String message) {
+        super(message);
+    }
+
+
+
+    /**
+     * @param message
+     */
+    public QueryException(String message, int errorCode) {
+        super(message);
+        this.errorCode = errorCode;
+    }
+
+    /**
+     * @param cause
+     */
+    public QueryException(Throwable cause) {
+        super(cause);
+    }
+
+    /**
+     * @param message
+     * @param cause
+     */
+    public QueryException(String message, Throwable cause) {
+        super(message, cause);
+    }
+
+    /**
+     * @param message
+     * @param cause
+     * @param enableSuppression
+     * @param writableStackTrace
+     */
+    public QueryException(String message, Throwable cause, boolean enableSuppression,
+                    boolean writableStackTrace) {
+        super(message, cause, enableSuppression, writableStackTrace);
+    }
+
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/logging/EELFLoggerDelegate.java b/mdbc-server/src/main/java/org/onap/music/logging/EELFLoggerDelegate.java
new file mode 100644
index 0000000..d8b5256
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/logging/EELFLoggerDelegate.java
@@ -0,0 +1,357 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.logging;
+
+import static com.att.eelf.configuration.Configuration.MDC_SERVER_FQDN;
+import static com.att.eelf.configuration.Configuration.MDC_SERVER_IP_ADDRESS;
+import static com.att.eelf.configuration.Configuration.MDC_SERVICE_INSTANCE_ID;
+import static com.att.eelf.configuration.Configuration.MDC_SERVICE_NAME;
+
+import java.net.InetAddress;
+import java.text.MessageFormat;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentMap;
+
+import javax.servlet.http.HttpServletRequest;
+
+import org.slf4j.MDC;
+
+import com.att.eelf.configuration.EELFLogger;
+import com.att.eelf.configuration.EELFManager;
+import com.att.eelf.configuration.SLF4jWrapper;
+
+public class EELFLoggerDelegate extends SLF4jWrapper implements EELFLogger {
+
+	public static final EELFLogger errorLogger = EELFManager.getInstance().getErrorLogger();
+	public static final EELFLogger applicationLogger = EELFManager.getInstance().getApplicationLogger();
+	public static final EELFLogger auditLogger = EELFManager.getInstance().getAuditLogger();
+	public static final EELFLogger metricsLogger = EELFManager.getInstance().getMetricsLogger();
+	public static final EELFLogger debugLogger = EELFManager.getInstance().getDebugLogger();
+
+	private String className;
+	private static ConcurrentMap<String, EELFLoggerDelegate> classMap = new ConcurrentHashMap<>();
+
+	public EELFLoggerDelegate(final String className) {
+		super(className);
+		this.className = className;
+	}
+
+	/**
+	 * Convenience method that gets a logger for the specified class.
+	 * 
+	 * @see #getLogger(String)
+	 * 
+	 * @param clazz
+	 * @return Instance of EELFLoggerDelegate
+	 */
+	public static EELFLoggerDelegate getLogger(Class<?> clazz) {
+		return getLogger(clazz.getName());
+	}
+
+	/**
+	 * Gets a logger for the specified class name. If the logger does not already
+	 * exist in the map, this creates a new logger.
+	 * 
+	 * @param className
+	 *            If null or empty, uses EELFLoggerDelegate as the class name.
+	 * @return Instance of EELFLoggerDelegate
+	 */
+	public static EELFLoggerDelegate getLogger(final String className) {
+		String classNameNeverNull = className == null || "".equals(className) ? EELFLoggerDelegate.class.getName()
+				: className;
+		EELFLoggerDelegate delegate = classMap.get(classNameNeverNull);
+		if (delegate == null) {
+			delegate = new EELFLoggerDelegate(className);
+			classMap.put(className, delegate);
+		}
+		return delegate;
+	}
+
+	/**
+	 * Logs a message at the lowest level: trace.
+	 * 
+	 * @param logger
+	 * @param msg
+	 */
+	public void trace(EELFLogger logger, String msg) {
+		if (logger.isTraceEnabled()) {
+			logger.trace(msg);
+		}
+	}
+
+	/**
+	 * Logs a message with parameters at the lowest level: trace.
+	 * 
+	 * @param logger
+	 * @param msg
+	 * @param arguments
+	 */
+	public void trace(EELFLogger logger, String msg, Object... arguments) {
+		if (logger.isTraceEnabled()) {
+			logger.trace(msg, arguments);
+		}
+	}
+
+	/**
+	 * Logs a message and throwable at the lowest level: trace.
+	 * 
+	 * @param logger
+	 * @param msg
+	 * @param th
+	 */
+	public void trace(EELFLogger logger, String msg, Throwable th) {
+		if (logger.isTraceEnabled()) {
+			logger.trace(msg, th);
+		}
+	}
+
+	/**
+	 * Logs a message at the second-lowest level: debug.
+	 * 
+	 * @param logger
+	 * @param msg
+	 */
+	public void debug(EELFLogger logger, String msg) {
+		if (logger.isDebugEnabled()) {
+			logger.debug(msg);
+		}
+	}
+
+	/**
+	 * Logs a message with parameters at the second-lowest level: debug.
+	 * 
+	 * @param logger
+	 * @param msg
+	 * @param arguments
+	 */
+	public void debug(EELFLogger logger, String msg, Object... arguments) {
+		if (logger.isDebugEnabled()) {
+			logger.debug(msg, arguments);
+		}
+	}
+
+	/**
+	 * Logs a message and throwable at the second-lowest level: debug.
+	 * 
+	 * @param logger
+	 * @param msg
+	 * @param th
+	 */
+	public void debug(EELFLogger logger, String msg, Throwable th) {
+		if (logger.isDebugEnabled()) {
+			logger.debug(msg, th);
+		}
+	}
+
+	/**
+	 * Logs a message at info level.
+	 * 
+	 * @param logger
+	 * @param msg
+	 */
+	public void info(EELFLogger logger, String msg) {
+		logger.info(className + " - "+msg);
+	}
+
+	/**
+	 * Logs a message with parameters at info level.
+	 *
+	 * @param logger
+	 * @param msg
+	 * @param arguments
+	 */
+	public void info(EELFLogger logger, String msg, Object... arguments) {
+		logger.info(msg, arguments);
+	}
+
+	/**
+	 * Logs a message and throwable at info level.
+	 * 
+	 * @param logger
+	 * @param msg
+	 * @param th
+	 */
+	public void info(EELFLogger logger, String msg, Throwable th) {
+		logger.info(msg, th);
+	}
+
+	/**
+	 * Logs a message at warn level.
+	 * 
+	 * @param logger
+	 * @param msg
+	 */
+	public void warn(EELFLogger logger, String msg) {
+		logger.warn(msg);
+	}
+
+	/**
+	 * Logs a message with parameters at warn level.
+	 * 
+	 * @param logger
+	 * @param msg
+	 * @param arguments
+	 */
+	public void warn(EELFLogger logger, String msg, Object... arguments) {
+		logger.warn(msg, arguments);
+	}
+
+	/**
+	 * Logs a message and throwable at warn level.
+	 * 
+	 * @param logger
+	 * @param msg
+	 * @param th
+	 */
+	public void warn(EELFLogger logger, String msg, Throwable th) {
+		logger.warn(msg, th);
+	}
+
+	/**
+	 * Logs a message at error level.
+	 * 
+	 * @param logger
+	 * @param msg
+	 */
+	public void error(EELFLogger logger, String msg) {
+		logger.error(className+ " - " + msg);
+	}
+
+	/**
+	 * Logs a message with parameters at error level.
+	 * 
+	 * @param logger
+	 * @param msg
+	 * @param arguments
+	 */
+	public void error(EELFLogger logger, String msg, Object... arguments) {
+		logger.error(msg, arguments);
+	}
+
+	/**
+	 * Logs a message and throwable at error level.
+	 * 
+	 * @param logger
+	 * @param msg
+	 * @param th
+	 */
+	public void error(EELFLogger logger, String msg, Throwable th) {
+		logger.error(msg, th);
+	}
+
+	/**
+	 * Logs a message with the associated alarm severity at error level.
+	 * 
+	 * @param logger
+	 * @param msg
+	 * @param severtiy
+	 */
+	public void error(EELFLogger logger, String msg, Object /*AlarmSeverityEnum*/ severtiy) {
+		logger.error(msg);
+	}
+
+	/**
+	 * Initializes the logger context.
+	 */
+	public void init() {
+		setGlobalLoggingContext();
+		final String msg = "############################ Logging is started. ############################";
+		// These loggers emit the current date-time without being told.
+		info(applicationLogger, msg);
+		error(errorLogger, msg);
+		debug(debugLogger, msg);
+        info(auditLogger, msg);
+		info(metricsLogger, msg);
+	}
+
+
+	/**
+	 * Builds a message using a template string and the arguments.
+	 * 
+	 * @param message
+	 * @param args
+	 * @return
+	 */
+	@SuppressWarnings("unused")
+	private String formatMessage(String message, Object... args) {
+		StringBuilder sbFormattedMessage = new StringBuilder();
+		if (args != null && args.length > 0 && message != null && message != "") {
+			MessageFormat mf = new MessageFormat(message);
+			sbFormattedMessage.append(mf.format(args));
+		} else {
+			sbFormattedMessage.append(message);
+		}
+
+		return sbFormattedMessage.toString();
+	}
+
+	/**
+	 * Loads all the default logging fields into the MDC context.
+	 */
+	private void setGlobalLoggingContext() {
+		MDC.put(MDC_SERVICE_INSTANCE_ID, "");
+		try {
+			MDC.put(MDC_SERVER_FQDN, InetAddress.getLocalHost().getHostName());
+			MDC.put(MDC_SERVER_IP_ADDRESS, InetAddress.getLocalHost().getHostAddress());
+		} catch (Exception e) {
+			errorLogger.error("setGlobalLoggingContext failed", e);
+		}
+	}
+
+	public static void mdcPut(String key, String value) {
+		MDC.put(key, value);
+	}
+
+	public static String mdcGet(String key) {
+		return MDC.get(key);
+	}
+
+	public static void mdcRemove(String key) {
+		MDC.remove(key);
+	}
+
+	/**
+	 * Loads the RequestId/TransactionId into the MDC which it should be receiving
+	 * with an each incoming REST API request. Also, configures few other request
+	 * based logging fields into the MDC context.
+	 * 
+	 * @param req
+	 * @param appName
+	 */
+	public void setRequestBasedDefaultsIntoGlobalLoggingContext(HttpServletRequest req, String appName) {
+		// Load the default fields
+		setGlobalLoggingContext();
+
+		// Load the request based fields
+		if (req != null) {
+
+
+			// Rest Path
+			MDC.put(MDC_SERVICE_NAME, req.getServletPath());
+
+			// Client IPAddress i.e. IPAddress of the remote host who is making
+			// this request.
+			String clientIPAddress = req.getHeader("X-FORWARDED-FOR");
+			if (clientIPAddress == null) {
+				clientIPAddress = req.getRemoteAddr();
+			}
+		}
+	}
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/logging/format/AppMessages.java b/mdbc-server/src/main/java/org/onap/music/logging/format/AppMessages.java
new file mode 100644
index 0000000..7bb5eca
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/logging/format/AppMessages.java
@@ -0,0 +1,153 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.logging.format;
+
+/**
+ * @author inam
+ *
+ */
+public enum AppMessages {
+	
+	
+	
+	/*
+	 * 100-199 Security/Permission Related - Authentication problems
+	 * [ERR100E] Missing Information 
+	 * [ERR101E] Authentication error occured
+	 * 
+	 * 200-299 Availability/Timeout Related/IO - connectivity error - connection timeout
+	 *  [ERR200E] Connectivity
+	 *  [ERR201E] Host not available 
+	 * 	[ERR202E] Error while connecting 
+	 *  [ERR203E] IO Error has occured
+	 *  [ERR204E] Execution Interrupted
+	 * 	[ERR205E] Session Expired
+	 *  
+	 * 
+	 * 
+	 * 300-399 Data Access/Integrity Related
+	 * [ERR300E] Incorrect data  
+	 * 
+	 * 400-499 - Cassandra Query Related
+	 * 
+	 * 
+	 * 500-599 - Zookeepr/Locking Related
+	 
+	 * 
+	 * 
+	 * 600 - 699 - MDBC Service Errors
+	 * [ERR600E] Error initializing the MDBC 
+	 * 
+	 * 700-799 Schema Interface Type/Validation - received Pay-load checksum is
+	 * invalid - received JSON is not valid
+	 * 
+	 * 800-899 Business/Flow Processing Related - check out to service is not
+	 * allowed - Roll-back is done - failed to generate heat file
+	 * 
+	 * 
+	 * 900-999 Unknown Errors - Unexpected exception
+	 * [ERR900E] Unexpected error occured
+	 * [ERR901E] Number format exception  
+	 * 
+	 * 
+	 * 1000-1099 Reserved - do not use
+	 * 
+	 */
+	
+	
+	
+	
+	MISSINGINFO("[ERR100E]", "Missing Information ","Details: NA", "Please check application credentials and/or headers"),
+	AUTHENTICATIONERROR("[ERR101E]", "Authentication error occured ","Details: NA", "Please verify application credentials"),
+	
+	CONNCECTIVITYERROR("[ERR200E]"," Connectivity error","Details: NA ","Please check connectivity to external resources"),
+	HOSTUNAVAILABLE("[ERR201E]","Host not available","Details: NA","Please verify the host details"),
+	IOERROR("[ERR203E]","IO Error has occured","","Please check IO"),
+	EXECUTIONINTERRUPTED("[ERR204E]"," Execution Interrupted","",""),
+	
+	
+	INCORRECTDATA("[ERR300E]"," Incorrect data",""," Please verify the request payload and try again"),
+	MULTIPLERECORDS("[ERR301E]"," Multiple records found",""," Please verify the request payload and try again"),
+	ALREADYEXIST("[ERR302E]"," Record already exist",""," Please verify the request payload and try again"),
+	MISSINGDATA("[ERR300E]"," Incorrect data",""," Please verify the request payload and try again"),
+	
+	QUERYERROR("[ERR400E]","Error while processing query",""," Please verify the query"),
+	
+	
+	UNKNOWNERROR("[ERR900E]"," Unexpected error occured",""," Please check logs for details");
+	
+	
+		
+	ErrorTypes eType;
+	ErrorSeverity alarmSeverity;
+	ErrorSeverity errorSeverity;
+	String errorCode;
+	String errorDescription;
+	String details;
+	String resolution;
+
+
+	AppMessages(String errorCode, String errorDescription, String details,String resolution) {
+	
+		this.errorCode = errorCode;
+		this.errorDescription = errorDescription;
+		this.details = details;
+		this.resolution = resolution;
+	}
+
+	
+	
+	
+	AppMessages(ErrorTypes eType, ErrorSeverity alarmSeverity,
+			ErrorSeverity errorSeverity, String errorCode, String errorDescription, String details,
+			String resolution) {
+	
+		this.eType = eType;
+		this.alarmSeverity = alarmSeverity;
+		this.errorSeverity = errorSeverity;
+		this.errorCode = errorCode;
+		this.errorDescription = errorDescription;
+		this.details = details;
+		this.resolution = resolution;
+	}
+
+	public String getDetails() {
+		return this.details;
+	}
+
+	public String getResolution() {
+		return this.resolution;
+	}
+
+	public String getErrorCode() {
+		return this.errorCode;
+	}
+
+	public String getErrorDescription() {
+		return this.errorDescription;
+	}
+
+	
+
+	
+	
+	
+
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/logging/format/ErrorSeverity.java b/mdbc-server/src/main/java/org/onap/music/logging/format/ErrorSeverity.java
new file mode 100644
index 0000000..2d48b2d
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/logging/format/ErrorSeverity.java
@@ -0,0 +1,35 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.logging.format;
+
+/**
+ * @author inam
+ *
+ */
+public enum ErrorSeverity {
+    INFO, 
+    WARN, 
+    ERROR, 
+    FATAL,
+    CRITICAL,
+    MAJOR,
+    MINOR,
+    NONE,
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/logging/format/ErrorTypes.java b/mdbc-server/src/main/java/org/onap/music/logging/format/ErrorTypes.java
new file mode 100644
index 0000000..3ac4c97
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/logging/format/ErrorTypes.java
@@ -0,0 +1,42 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.logging.format;
+
+import com.att.eelf.i18n.EELFResolvableErrorEnum;
+
+/**
+ * @author inam
+ *
+ */
+public enum ErrorTypes implements EELFResolvableErrorEnum {
+	
+	
+	CONNECTIONERROR,
+	SESSIONEXPIRED,
+	AUTHENTICATIONERROR,
+	SERVICEUNAVAILABLE,
+	QUERYERROR,
+	DATAERROR,
+	GENERALSERVICEERROR,
+	MUSICSERVICEERROR,
+	LOCKINGERROR,
+	UNKNOWN,
+	
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/ArchiveProcess.java b/mdbc-server/src/main/java/org/onap/music/mdbc/ArchiveProcess.java
new file mode 100644
index 0000000..c61d39e
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/ArchiveProcess.java
@@ -0,0 +1,61 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc;
+
+import org.json.JSONObject;
+
+import org.onap.music.mdbc.mixins.DBInterface;
+import org.onap.music.mdbc.mixins.MusicInterface;
+
+public class ArchiveProcess {
+	protected MusicInterface mi;
+	protected DBInterface dbi;
+
+	//TODO: This is a place holder for taking snapshots and moving data from redo record into actual tables
+	
+	/**
+	 * This method is called whenever there is a DELETE on the transaction digest and should be called when ownership changes, if required
+	 *  It updates the MUSIC/Cassandra tables (both dirty bits and actual data) corresponding to the SQL DELETE.
+	 * Music propagates it to the other replicas.
+	 * @param tableName This is the table on which the select is being performed
+	 * @param oldRow This is information about the row that is being deleted
+	 */
+	@SuppressWarnings("unused")
+	private void deleteFromEntityTableInMusic(String tableName, JSONObject oldRow) {
+			TableInfo ti = dbi.getTableInfo(tableName);
+			mi.deleteFromEntityTableInMusic(ti,tableName, oldRow);
+	}
+	
+	/**
+	 * This method is called whenever there is an INSERT or UPDATE to a the transaction digest, and should be called by an
+	 * ownership chance. It updates the MUSIC/Cassandra tables (both dirty bits and actual data) corresponding to the SQL write.
+	 * Music propagates it to the other replicas.  If the local database is in the middle of a transaction, the updates to MUSIC are
+	 * delayed until the transaction is either committed or rolled back.
+	 *
+	 * @param tableName This is the table that has changed.
+	 * @param changedRow This is information about the row that has changed, an array of objects representing the data being inserted/updated
+	 */
+	@SuppressWarnings("unused")
+	private void updateDirtyRowAndEntityTableInMusic(String tableName, JSONObject changedRow) {
+		//TODO: is this right? should we be saving updates at the client? we should leverage JDBC to handle this
+			TableInfo ti = dbi.getTableInfo(tableName);
+			mi.updateDirtyRowAndEntityTableInMusic(ti,tableName, changedRow);
+	}
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/Configuration.java b/mdbc-server/src/main/java/org/onap/music/mdbc/Configuration.java
new file mode 100644
index 0000000..f876548
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/Configuration.java
@@ -0,0 +1,37 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc;
+
+public class Configuration {
+    /** The property name to use to connect to cassandra*/
+    public static final String KEY_CASSANDRA_URL = "CASSANDRA_URL";
+    /** The property name to use to enable/disable the MusicSqlManager entirely. */
+    public static final String KEY_DISABLED         = "disabled";
+    /** The property name to use to select the DB 'mixin'. */
+    public static final String KEY_DB_MIXIN_NAME    = "MDBC_DB_MIXIN";
+    /** The property name to use to select the MUSIC 'mixin'. */
+    public static final String KEY_MUSIC_MIXIN_NAME = "MDBC_MUSIC_MIXIN";
+    /** The name of the default mixin to use for the DBInterface. */
+    public static final String DB_MIXIN_DEFAULT     = "mysql";//"h2";
+    /** The name of the default mixin to use for the MusicInterface. */
+    public static final String MUSIC_MIXIN_DEFAULT  = "cassandra2";//"cassandra2";
+    /** Default cassandra ulr*/
+    public static final String CASSANDRA_URL_DEFAULT = "localhost";//"cassandra2";
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/DatabaseOperations.java b/mdbc-server/src/main/java/org/onap/music/mdbc/DatabaseOperations.java
new file mode 100644
index 0000000..e10fe96
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/DatabaseOperations.java
@@ -0,0 +1,335 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc;
+
+import com.datastax.driver.core.ResultSet;
+import com.datastax.driver.core.Row;
+import com.datastax.driver.core.TupleValue;
+import org.onap.music.exceptions.MDBCServiceException;
+import org.onap.music.logging.EELFLoggerDelegate;
+import org.onap.music.datastore.PreparedQueryObject;
+import org.onap.music.exceptions.MusicLockingException;
+import org.onap.music.exceptions.MusicQueryException;
+import org.onap.music.exceptions.MusicServiceException;
+import org.onap.music.main.MusicCore;
+import org.onap.music.main.ResultType;
+import org.onap.music.main.ReturnType;
+import org.onap.music.mdbc.tables.MusicRangeInformationRow;
+import org.onap.music.mdbc.tables.MusicTxDigestId;
+import org.onap.music.mdbc.tables.PartitionInformation;
+import org.onap.music.mdbc.tables.StagingTable;
+
+import java.io.IOException;
+import java.util.*;
+
+import com.datastax.driver.core.utils.UUIDs;
+
+public class DatabaseOperations {
+    private static EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(DatabaseOperations.class);
+    /**
+     * This functions is used to generate cassandra uuid
+     * @return a random UUID that can be used for fields of type uuid
+     */
+    public static UUID generateUniqueKey() {
+		return UUIDs.random();
+	}
+
+	public static void createMusicTxDigest(String musicNamespace, String musicTxDigestTableName)
+            throws MDBCServiceException {
+        createMusicTxDigest(musicNamespace,musicTxDigestTableName,-1);
+    }
+
+    /**
+     * This function creates the MusicTxDigest table. It contain information related to each transaction committed
+     * 	* LeaseId: id associated with the lease, text
+     * 	* LeaseCounter: transaction number under this lease, bigint \TODO this may need to be a varint later
+     *  * TransactionDigest: text that contains all the changes in the transaction
+     */
+    public static void createMusicTxDigest(String musicNamespace, String musicTxDigestTableName,
+                                           int musicTxDigestTableNumber) throws MDBCServiceException {
+        String tableName = musicTxDigestTableName;
+        if(musicTxDigestTableNumber >= 0) {
+            tableName = tableName +
+                    "-" +
+                    Integer.toString(musicTxDigestTableNumber);
+        }
+        String priKey = "txid";
+        StringBuilder fields = new StringBuilder();
+        fields.append("txid uuid, ");
+        fields.append("transactiondigest text ");//notice lack of ','
+        String cql = String.format("CREATE TABLE IF NOT EXISTS %s.%s (%s, PRIMARY KEY (%s));", musicNamespace, tableName, fields, priKey);
+        try {
+            executeMusicWriteQuery(musicNamespace,tableName,cql);
+        } catch (MDBCServiceException e) {
+            logger.error("Initialization error: Failure to create redo records table");
+            throw(e);
+        }
+    }
+
+    /**
+     * This function creates the TransactionInformation table. It contain information related
+     * to the transactions happening in a given partition.
+     * 	 * The schema of the table is
+     * 		* Id, uiid.
+     * 		* Partition, uuid id of the partition
+     * 		* LatestApplied, int indicates which values from the redologtable wast the last to be applied to the data tables
+     *		* Applied: boolean, indicates if all the values in this redo log table where already applied to data tables
+     *		* Redo: list of uiids associated to the Redo Records Table
+     *
+     */
+    public static void createMusicRangeInformationTable(String musicNamespace, String musicRangeInformationTableName) throws MDBCServiceException {
+        String tableName = musicRangeInformationTableName;
+        String priKey = "rangeid";
+        StringBuilder fields = new StringBuilder();
+        fields.append("rangeid uuid, ");
+        fields.append("keys set<text>, ");
+        fields.append("ownerid text, ");
+        fields.append("metricprocessid text, ");
+        //TODO: Frozen is only needed for old versions of cassandra, please update correspondingly
+        fields.append("txredolog list<frozen<tuple<text,uuid>>> ");
+        String cql = String.format("CREATE TABLE IF NOT EXISTS %s.%s (%s, PRIMARY KEY (%s));", musicNamespace, tableName, fields, priKey);
+        try {
+            executeMusicWriteQuery(musicNamespace,tableName,cql);
+        } catch (MDBCServiceException e) {
+            logger.error("Initialization error: Failure to create transaction information table");
+            throw(e);
+        }
+    }
+
+    /**
+     * Creates a new empty tit row
+     * @param namespace namespace where the tit table is located
+     * @param mriTableName name of the corresponding mri table where the new row is added
+     * @param processId id of the process that is going to own initially this.
+     * @return uuid associated to the new row
+     */
+    public static UUID createEmptyMriRow(String namespace, String mriTableName,
+                                         String processId, String lockId, List<Range> ranges) throws MDBCServiceException {
+        UUID id = generateUniqueKey();
+        return createEmptyMriRow(namespace,mriTableName,id,processId,lockId,ranges);
+    }
+
+    public static UUID createEmptyMriRow(String namespace, String mriTableName, UUID id, String processId, String lockId,
+                                         List<Range> ranges) throws MDBCServiceException{
+        StringBuilder insert = new StringBuilder("INSERT INTO ")
+                .append(namespace)
+                .append('.')
+                .append(mriTableName)
+                .append(" (rangeid,keys,ownerid,metricprocessid,txredolog) VALUES ")
+                .append("(")
+                .append(id)
+                .append(",{");
+        boolean first=true;
+        for(Range r: ranges){
+            if(first){ first=false; }
+            else {
+                insert.append(',');
+            }
+            insert.append("'").append(r.toString()).append("'");
+        }
+        insert.append("},'")
+                .append((lockId==null)?"":lockId)
+                .append("','")
+                .append(processId)
+                .append("',[]);");
+        PreparedQueryObject query = new PreparedQueryObject();
+        query.appendQueryString(insert.toString());
+        try {
+            executeLockedPut(namespace,mriTableName,id.toString(),query,lockId,null);
+        } catch (MDBCServiceException e) {
+            logger.error("Initialization error: Failure to add new row to transaction information");
+            throw new MDBCServiceException("Initialization error:Failure to add new row to transaction information");
+        }
+        return id;
+    }
+
+    public static MusicRangeInformationRow getMriRow(String namespace, String mriTableName, UUID id, String lockId)
+        throws MDBCServiceException{
+		String cql = String.format("SELECT * FROM %s.%s WHERE rangeid = ?;", namespace, mriTableName);
+		PreparedQueryObject pQueryObject = new PreparedQueryObject();
+		pQueryObject.appendQueryString(cql);
+		pQueryObject.addValue(id);
+		Row newRow;
+        try {
+            newRow = executeLockedGet(namespace,mriTableName,pQueryObject,id.toString(),lockId);
+        } catch (MDBCServiceException e) {
+            logger.error("Get operationt error: Failure to get row from MRI "+mriTableName);
+            throw new MDBCServiceException("Initialization error:Failure to add new row to transaction information");
+        }
+//        	public MusicRangeInformationRow(UUID index, List<MusicTxDigestId> redoLog, PartitionInformation partition,
+ //                                   String ownerId, String metricProcessId) {
+        List<TupleValue> log = newRow.getList("txredolog",TupleValue.class);
+        List<MusicTxDigestId> digestIds = new ArrayList<>();
+        for(TupleValue t: log){
+           //final String tableName = t.getString(0);
+           final UUID index = t.getUUID(1);
+           digestIds.add(new MusicTxDigestId(index));
+        }
+        List<Range> partitions = new ArrayList<>();
+        Set<String> tables = newRow.getSet("keys",String.class);
+        for (String table:tables){
+            partitions.add(new Range(table));
+        }
+        return new MusicRangeInformationRow(id,digestIds,new PartitionInformation(partitions),newRow.getString("ownerid"),newRow.getString("metricprocessid"));
+
+    }
+
+    public static HashMap<Range,StagingTable> getTransactionDigest(String namespace, String musicTxDigestTable, MusicTxDigestId id)
+            throws MDBCServiceException{
+		String cql = String.format("SELECT * FROM %s.%s WHERE txid = ?;", namespace, musicTxDigestTable);
+		PreparedQueryObject pQueryObject = new PreparedQueryObject();
+		pQueryObject.appendQueryString(cql);
+		pQueryObject.addValue(id.tablePrimaryKey);
+		Row newRow;
+        try {
+            newRow = executeUnlockedQuorumGet(pQueryObject);
+        } catch (MDBCServiceException e) {
+            logger.error("Get operation error: Failure to get row from txdigesttable with id:"+id.tablePrimaryKey);
+            throw new MDBCServiceException("Initialization error:Failure to add new row to transaction information");
+        }
+        String digest = newRow.getString("transactiondigest");
+        HashMap<Range,StagingTable> changes;
+        try {
+            changes = (HashMap<Range, StagingTable>) MDBCUtils.fromString(digest);
+        } catch (IOException e) {
+            logger.error("IOException when deserializing digest failed with an invalid class for id:"+id.tablePrimaryKey);
+            throw new MDBCServiceException("Deserializng digest failed with ioexception");
+        } catch (ClassNotFoundException e) {
+            logger.error("Deserializng digest failed with an invalid class for id:"+id.tablePrimaryKey);
+            throw new MDBCServiceException("Deserializng digest failed with an invalid class");
+        }
+        return changes;
+    }
+
+    /**
+     * This method executes a write query in Music
+     * @param cql the CQL to be sent to Cassandra
+     */
+    protected static void executeMusicWriteQuery(String keyspace, String table, String cql)
+    		throws MDBCServiceException {
+        PreparedQueryObject pQueryObject = new PreparedQueryObject();
+        pQueryObject.appendQueryString(cql);
+        ResultType rt = null;
+        try {
+            rt = MusicCore.createTable(keyspace,table,pQueryObject,"critical");
+        } catch (MusicServiceException e) {
+            //\TODO: handle better, at least transform into an MDBCServiceException
+            e.printStackTrace();
+        }
+        String result = rt.getResult();
+        if (result==null || result.toLowerCase().equals("failure")) {
+            throw new MDBCServiceException("Music eventual put failed");
+        }
+    }
+
+    protected static Row executeLockedGet(String keyspace, String table, PreparedQueryObject cqlObject, String primaryKey,
+                                           String lock)
+        throws MDBCServiceException{
+        ResultSet result;
+        try {
+            result = MusicCore.criticalGet(keyspace,table,primaryKey,cqlObject,lock);
+        } catch(MusicServiceException e){
+            //\TODO: handle better, at least transform into an MDBCServiceException
+            e.printStackTrace();
+            throw new MDBCServiceException("Error executing critical get");
+        }
+        if(result.isExhausted()){
+            throw new MDBCServiceException("There is not a row that matches the id "+primaryKey);
+        }
+        return result.one();
+    }
+
+    protected static Row executeUnlockedQuorumGet(PreparedQueryObject cqlObject)
+        throws MDBCServiceException{
+        ResultSet result = MusicCore.quorumGet(cqlObject);
+            //\TODO: handle better, at least transform into an MDBCServiceException
+        if(result.isExhausted()){
+            throw new MDBCServiceException("There is not a row that matches the query: ["+cqlObject.getQuery()+"]");
+        }
+        return result.one();
+    }
+
+    protected static void executeLockedPut(String namespace, String tableName,
+                                           String primaryKeyWithoutDomain, PreparedQueryObject queryObject, String lockId,
+                                           MusicCore.Condition conditionInfo) throws MDBCServiceException {
+        ReturnType rt ;
+        if(lockId==null) {
+            try {
+                rt = MusicCore.atomicPut(namespace, tableName, primaryKeyWithoutDomain, queryObject, conditionInfo);
+            } catch (MusicLockingException e) {
+                logger.error("Music locked put failed");
+                throw new MDBCServiceException("Music locked put failed");
+            } catch (MusicServiceException e) {
+                logger.error("Music service fail: Music locked put failed");
+                throw new MDBCServiceException("Music service fail: Music locked put failed");
+            } catch (MusicQueryException e) {
+                logger.error("Music query fail: locked put failed");
+                throw new MDBCServiceException("Music query fail: Music locked put failed");
+            }
+        }
+        else {
+            rt = MusicCore.criticalPut(namespace, tableName, primaryKeyWithoutDomain, queryObject, lockId, conditionInfo);
+        }
+        if (rt.getResult().getResult().toLowerCase().equals("failure")) {
+            throw new MDBCServiceException("Music locked put failed");
+        }
+    }
+
+    public static void createNamespace(String namespace, int replicationFactor) throws MDBCServiceException {
+        Map<String,Object> replicationInfo = new HashMap<>();
+        replicationInfo.put("'class'", "'SimpleStrategy'");
+        replicationInfo.put("'replication_factor'", replicationFactor);
+
+        PreparedQueryObject queryObject = new PreparedQueryObject();
+        queryObject.appendQueryString(
+                "CREATE KEYSPACE " + namespace + " WITH REPLICATION = " + replicationInfo.toString().replaceAll("=", ":"));
+
+        try {
+            MusicCore.nonKeyRelatedPut(queryObject, "critical");
+        } catch (MusicServiceException e) {
+            if (!e.getMessage().equals("Keyspace "+namespace+" already exists")) {
+                logger.error("Error creating namespace: "+namespace);
+                throw new MDBCServiceException("Error creating namespace: "+namespace+". Internal error:"+e.getErrorMessage());
+            }
+        }
+    }
+
+    public static void createTxDigestRow(String namespace, String musicTxDigestTable, MusicTxDigestId newId, String transactionDigest) throws MDBCServiceException {
+        PreparedQueryObject query = new PreparedQueryObject();
+        String cqlQuery = "INSERT INTO " +
+                namespace +
+                '.' +
+                musicTxDigestTable +
+                " (txid,transactiondigest) " +
+                "VALUES (" +
+                newId.tablePrimaryKey + ",'" +
+                transactionDigest +
+                "');";
+        query.appendQueryString(cqlQuery);
+        //\TODO check if I am not shooting on my own foot
+        try {
+            MusicCore.nonKeyRelatedPut(query,"critical");
+        } catch (MusicServiceException e) {
+            logger.error(EELFLoggerDelegate.errorLogger, "Transaction Digest serialization was invalid for commit "+newId.tablePrimaryKey.toString()+ "with error "+e.getErrorMessage());
+            throw new MDBCServiceException("Transaction Digest serialization for commit "+newId.tablePrimaryKey.toString());
+        }
+    }
+
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/DatabasePartition.java b/mdbc-server/src/main/java/org/onap/music/mdbc/DatabasePartition.java
new file mode 100644
index 0000000..e6b4e0e
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/DatabasePartition.java
@@ -0,0 +1,190 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc;
+
+import java.io.BufferedReader;
+import java.io.FileNotFoundException;
+import java.io.FileReader;
+import java.util.*;
+
+import org.onap.music.logging.EELFLoggerDelegate;
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import org.onap.music.mdbc.tables.MriReference;
+
+/**
+ * A database range contain information about what ranges should be hosted in the current MDBC instance
+ * A database range with an empty map, is supposed to contain all the tables in Music.  
+ * @author Enrique Saurez 
+ */
+public class DatabasePartition {
+	private transient static EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(DatabasePartition.class);
+
+	private String musicRangeInformationTable;//Table that currently contains the REDO log for this partition
+	private UUID musicRangeInformationIndex;//Index that can be obtained either from
+	private String musicTxDigestTable;
+	private String lockId;
+	protected List<Range> ranges;
+
+	/**
+	 * Each range represents a partition of the database, a database partition is a union of this partitions. 
+	 * The only requirement is that the ranges are not overlapping.
+	 */
+	
+	public DatabasePartition() {
+		ranges = new ArrayList<>();
+	}
+	
+	public DatabasePartition(List<Range> knownRanges, UUID mriIndex, String mriTable, String lockId, String musicTxDigestTable) {
+		if(knownRanges != null) {
+			ranges = knownRanges;
+		}
+		else {
+			ranges = new ArrayList<>();
+		}
+
+		if(musicTxDigestTable != null) {
+            this.setMusicTxDigestTable(musicTxDigestTable);
+        }
+        else{
+            this.setMusicTxDigestTable("");
+        }
+
+		if(mriIndex != null) {
+			this.setMusicRangeInformationIndex(mriIndex);
+		}
+		else {
+			this.setMusicRangeInformationIndex(null);
+		}
+		
+		if(mriTable != null) {
+			this.setMusicRangeInformationTable(mriTable);
+		}
+		else {
+			this.setMusicRangeInformationTable("");
+		}
+
+		if(lockId != null) {
+			this.setLockId(lockId);
+		}
+		else {
+			this.setLockId("");
+		}	
+	}
+
+	public String getMusicRangeInformationTable() {
+		return musicRangeInformationTable;
+	}
+
+	public void setMusicRangeInformationTable(String musicRangeInformationTable) {
+		this.musicRangeInformationTable = musicRangeInformationTable;
+	}
+
+	public MriReference getMusicRangeInformationIndex() {
+		return new MriReference(musicRangeInformationTable,musicRangeInformationIndex);
+	}
+
+	public void setMusicRangeInformationIndex(UUID musicRangeInformationIndex) {
+		this.musicRangeInformationIndex = musicRangeInformationIndex;
+	}
+
+	/**
+	 * Add a new range to the ones own by the local MDBC 
+	 * @param newRange range that is being added
+	 * @throws IllegalArgumentException 
+	 */
+	public synchronized void addNewRange(Range newRange) {
+		//Check overlap
+		for(Range r : ranges) {
+			if(r.overlaps(newRange)) {
+				throw new IllegalArgumentException("Range is already contain by a previous range");
+			}
+		}
+		ranges.add(newRange);
+	}
+	
+	/**
+	 * Delete a range that is being modified
+	 * @param rangeToDel limits of the range
+	 */
+	public synchronized void deleteRange(Range rangeToDel) {
+		if(!ranges.contains(rangeToDel)) {
+			logger.error(EELFLoggerDelegate.errorLogger,"Range doesn't exist");
+			throw new IllegalArgumentException("Invalid table"); 
+		}
+		ranges.remove(rangeToDel);
+	}
+	
+	/**
+	 * Get all the ranges that are currently owned
+	 * @return ranges
+	 */
+	public synchronized Range[] getSnapshot() {
+		return (Range[]) ranges.toArray();
+	}
+	
+	/**
+	 * Serialize the ranges
+	 * @return serialized ranges
+	 */
+    public String toJson() {
+    	GsonBuilder builder = new GsonBuilder();
+    	builder.setPrettyPrinting().serializeNulls();;
+        Gson gson = builder.create();
+        return gson.toJson(this);	
+    }
+    
+    /**
+     * Function to obtain the configuration 
+     * @param filepath path to the database range
+     * @return a new object of type DatabaseRange
+     * @throws FileNotFoundException
+     */
+    
+    public static DatabasePartition readJsonFromFile( String filepath) throws FileNotFoundException {
+    	 BufferedReader br;
+		try {
+			br = new BufferedReader(  
+			         new FileReader(filepath));
+		} catch (FileNotFoundException e) {
+			logger.error(EELFLoggerDelegate.errorLogger,"File was not found when reading json"+e);
+			throw e;
+		}
+    	Gson gson = new Gson();
+    	DatabasePartition range = gson.fromJson(br, DatabasePartition.class);	
+    	return range;
+    }
+
+	public String getLockId() {
+		return lockId;
+	}
+
+	public void setLockId(String lockId) {
+		this.lockId = lockId;
+	}
+
+    public String getMusicTxDigestTable() {
+        return musicTxDigestTable;
+    }
+
+    public void setMusicTxDigestTable(String musicTxDigestTable) {
+        this.musicTxDigestTable = musicTxDigestTable;
+    }
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/LockId.java b/mdbc-server/src/main/java/org/onap/music/mdbc/LockId.java
new file mode 100644
index 0000000..05483e5
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/LockId.java
@@ -0,0 +1,65 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc;
+
+public class LockId {
+    private String primaryKey;
+    private String domain;
+    private String lockReference;
+
+    public LockId(String primaryKey, String domain, String lockReference){
+        this.primaryKey = primaryKey;
+        this.domain = domain;
+        if(lockReference == null) {
+            this.lockReference = "";
+        }
+        else{
+            this.lockReference = lockReference;
+        }
+    }
+
+    public String getFullyQualifiedLockKey(){
+        return this.domain+"."+this.primaryKey;
+    }
+
+    public String getPrimaryKey() {
+        return primaryKey;
+    }
+
+    public void setPrimaryKey(String primaryKey) {
+        this.primaryKey = primaryKey;
+    }
+
+    public String getDomain() {
+        return domain;
+    }
+
+    public void setDomain(String domain) {
+        this.domain = domain;
+    }
+
+    public String getLockReference() {
+        return lockReference;
+    }
+
+    public void setLockReference(String lockReference) {
+        this.lockReference = lockReference;
+    }
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/MDBCUtils.java b/mdbc-server/src/main/java/org/onap/music/mdbc/MDBCUtils.java
new file mode 100644
index 0000000..4d43177
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/MDBCUtils.java
@@ -0,0 +1,89 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc;
+
+import java.io.*;
+import java.util.Base64;
+import java.util.Deque;
+import java.util.HashMap;
+
+import org.onap.music.logging.EELFLoggerDelegate;
+import org.onap.music.logging.format.AppMessages;
+import org.onap.music.logging.format.ErrorSeverity;
+import org.onap.music.logging.format.ErrorTypes;
+import org.onap.music.mdbc.tables.Operation;
+import org.onap.music.mdbc.tables.StagingTable;
+
+import javassist.bytecode.Descriptor.Iterator;
+
+import org.apache.commons.lang3.tuple.Pair;
+import org.json.JSONObject;
+
+public class MDBCUtils {
+        /** Write the object to a Base64 string. */
+    public static String toString( Serializable o ) throws IOException {
+    	//TODO We may want to also compress beside serialize
+        ByteArrayOutputStream baos = new ByteArrayOutputStream();
+        try {
+            ObjectOutputStream oos = new ObjectOutputStream(baos);
+            oos.writeObject(o);
+            oos.close();
+            return Base64.getEncoder().encodeToString(baos.toByteArray());
+        }
+        finally{
+            baos.close();
+        }
+    }
+    
+    public static String toString( JSONObject o) throws IOException {
+    	//TODO We may want to also compress beside serialize
+    	ByteArrayOutputStream baos = new ByteArrayOutputStream();
+        ObjectOutputStream oos = new ObjectOutputStream( baos );
+        oos.writeObject( o );
+        oos.close();
+        return Base64.getEncoder().encodeToString(baos.toByteArray());
+    }
+    
+    /** Read the object from Base64 string. */
+    public static Object fromString( String s ) throws IOException ,
+                                                        ClassNotFoundException {
+         byte [] data = Base64.getDecoder().decode( s );
+         ObjectInputStream ois = new ObjectInputStream( 
+                                         new ByteArrayInputStream(  data ) );
+         Object o  = ois.readObject();
+         ois.close();
+         return o;
+    }
+
+    public static void saveToFile(String serializedContent, String filename, EELFLoggerDelegate logger) throws IOException {
+        try (PrintWriter fout = new PrintWriter(filename)) {
+            fout.println(serializedContent);
+        } catch (FileNotFoundException e) {
+            if(logger!=null){
+                logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(), AppMessages.IOERROR, ErrorTypes.UNKNOWN, ErrorSeverity.CRITICAL);
+            }
+            else {
+                e.printStackTrace();
+            }
+            throw e;
+        }
+    }
+
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/MdbcCallableStatement.java b/mdbc-server/src/main/java/org/onap/music/mdbc/MdbcCallableStatement.java
new file mode 100644
index 0000000..b820686
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/MdbcCallableStatement.java
@@ -0,0 +1,757 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc;
+
+import java.io.InputStream;
+import java.io.Reader;
+import java.math.BigDecimal;
+import java.net.URL;
+import java.sql.Array;
+import java.sql.Blob;
+import java.sql.CallableStatement;
+import java.sql.Clob;
+import java.sql.Date;
+import java.sql.NClob;
+import java.sql.ParameterMetaData;
+import java.sql.Ref;
+import java.sql.RowId;
+import java.sql.SQLException;
+import java.sql.SQLXML;
+import java.sql.Statement;
+import java.sql.Time;
+import java.sql.Timestamp;
+import java.util.Calendar;
+import java.util.Map;
+
+import org.onap.music.logging.EELFLoggerDelegate;
+
+/**
+ * ProxyStatement is a proxy Statement that front ends Statements from the underlying JDBC driver.  It passes all operations through,
+ * and invokes the MusicSqlManager when there is the possibility that database tables have been created or dropped.
+ *
+ * @author Robert Eby
+ */
+public class MdbcCallableStatement extends MdbcPreparedStatement implements CallableStatement  {
+	private EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(MdbcCallableStatement.class);
+	@SuppressWarnings("unused")
+	private static final String DATASTAX_PREFIX = "com.datastax.driver";
+
+	public MdbcCallableStatement(Statement stmt, MusicSqlManager m) {
+		super(stmt, m);
+	}
+
+	public MdbcCallableStatement(Statement stmt, String sql, MusicSqlManager mgr) {
+		super(stmt, sql, mgr);
+	}
+	
+	@Override
+	public <T> T unwrap(Class<T> iface) throws SQLException {
+		logger.error(EELFLoggerDelegate.errorLogger, "proxystatement unwrap: " + iface.getName());
+		return stmt.unwrap(iface);
+	}
+
+	@Override
+	public boolean isWrapperFor(Class<?> iface) throws SQLException {
+		logger.error(EELFLoggerDelegate.errorLogger, "proxystatement isWrapperFor: " + iface.getName());
+		return stmt.isWrapperFor(iface);
+	}
+
+	@Override
+	public void setTimestamp(int parameterIndex, Timestamp x, Calendar cal) throws SQLException {
+		((CallableStatement)stmt).setTimestamp(parameterIndex, x, cal);
+	}
+
+	@Override
+	public void setNull(int parameterIndex, int sqlType, String typeName) throws SQLException {
+		((CallableStatement)stmt).setNull(parameterIndex, sqlType, typeName);
+	}
+
+	@Override
+	public void setURL(int parameterIndex, URL x) throws SQLException {
+		((CallableStatement)stmt).setURL(parameterIndex, x);
+	}
+
+	@Override
+	public ParameterMetaData getParameterMetaData() throws SQLException {
+		return ((CallableStatement)stmt).getParameterMetaData();
+	}
+
+	@Override
+	public void setRowId(int parameterIndex, RowId x) throws SQLException {
+		((CallableStatement)stmt).setRowId(parameterIndex, x);
+	}
+
+	@Override
+	public void setNString(int parameterIndex, String value) throws SQLException {
+		((CallableStatement)stmt).setNString(parameterIndex, value);
+	}
+
+	@Override
+	public void setNCharacterStream(int parameterIndex, Reader value, long length) throws SQLException {
+		((CallableStatement)stmt).setNCharacterStream(parameterIndex, value, length);
+	}
+
+	@Override
+	public void setNClob(int parameterIndex, NClob value) throws SQLException {
+		((CallableStatement)stmt).setNClob(parameterIndex, value);
+	}
+
+	@Override
+	public void setClob(int parameterIndex, Reader reader, long length) throws SQLException {
+		((CallableStatement)stmt).setClob(parameterIndex, reader, length);
+	}
+
+	@Override
+	public void setBlob(int parameterIndex, InputStream inputStream, long length) throws SQLException {
+		((CallableStatement)stmt).setBlob(parameterIndex, inputStream, length);
+	}
+
+	@Override
+	public void setNClob(int parameterIndex, Reader reader, long length) throws SQLException {
+		((CallableStatement)stmt).setNClob(parameterIndex, reader, length);
+	}
+
+	@Override
+	public void setSQLXML(int parameterIndex, SQLXML xmlObject) throws SQLException {
+		((CallableStatement)stmt).setSQLXML(parameterIndex, xmlObject);
+	}
+
+	@Override
+	public void setObject(int parameterIndex, Object x, int targetSqlType, int scaleOrLength) throws SQLException {
+		((CallableStatement)stmt).setObject(parameterIndex, x, targetSqlType, scaleOrLength);
+	}
+
+	@Override
+	public void setAsciiStream(int parameterIndex, InputStream x, long length) throws SQLException {
+		((CallableStatement)stmt).setAsciiStream(parameterIndex, x, length);
+	}
+
+	@Override
+	public void setBinaryStream(int parameterIndex, InputStream x, long length) throws SQLException {
+		((CallableStatement)stmt).setBinaryStream(parameterIndex, x, length);
+	}
+
+	@Override
+	public void setCharacterStream(int parameterIndex, Reader reader, long length) throws SQLException {
+		((CallableStatement)stmt).setCharacterStream(parameterIndex, reader, length);
+	}
+
+	@Override
+	public void setAsciiStream(int parameterIndex, InputStream x) throws SQLException {
+		((CallableStatement)stmt).setAsciiStream(parameterIndex, x);
+	}
+
+	@Override
+	public void setBinaryStream(int parameterIndex, InputStream x) throws SQLException {
+		((CallableStatement)stmt).setBinaryStream(parameterIndex, x);
+	}
+
+	@Override
+	public void setCharacterStream(int parameterIndex, Reader reader) throws SQLException {
+		((CallableStatement)stmt).setCharacterStream(parameterIndex, reader);
+	}
+
+	@Override
+	public void setNCharacterStream(int parameterIndex, Reader value) throws SQLException {
+		((CallableStatement)stmt).setNCharacterStream(parameterIndex, value);
+	}
+
+	@Override
+	public void setClob(int parameterIndex, Reader reader) throws SQLException {
+		((CallableStatement)stmt).setClob(parameterIndex, reader);
+	}
+
+	@Override
+	public void setBlob(int parameterIndex, InputStream inputStream) throws SQLException {
+		((CallableStatement)stmt).setBlob(parameterIndex, inputStream);
+	}
+
+	@Override
+	public void setNClob(int parameterIndex, Reader reader) throws SQLException {
+		((CallableStatement)stmt).setNClob(parameterIndex, reader);
+	}
+
+	@Override
+	public void registerOutParameter(int parameterIndex, int sqlType) throws SQLException {
+		((CallableStatement)stmt).registerOutParameter(parameterIndex, sqlType);
+	}
+
+	@Override
+	public void registerOutParameter(int parameterIndex, int sqlType, int scale) throws SQLException {
+		((CallableStatement)stmt).registerOutParameter(parameterIndex, sqlType, scale);
+	}
+
+	@Override
+	public boolean wasNull() throws SQLException {
+		return ((CallableStatement)stmt).wasNull();
+	}
+
+	@Override
+	public String getString(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getString(parameterIndex);
+	}
+
+	@Override
+	public boolean getBoolean(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getBoolean(parameterIndex);
+	}
+
+	@Override
+	public byte getByte(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getByte(parameterIndex);
+	}
+
+	@Override
+	public short getShort(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getShort(parameterIndex);
+	}
+
+	@Override
+	public int getInt(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getInt(parameterIndex);
+	}
+
+	@Override
+	public long getLong(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getLong(parameterIndex);
+	}
+
+	@Override
+	public float getFloat(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getFloat(parameterIndex);
+	}
+
+	@Override
+	public double getDouble(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getDouble(parameterIndex);
+	}
+
+	@SuppressWarnings("deprecation")
+	@Override
+	public BigDecimal getBigDecimal(int parameterIndex, int scale) throws SQLException {
+		return ((CallableStatement)stmt).getBigDecimal(parameterIndex, scale);
+	}
+
+	@Override
+	public byte[] getBytes(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getBytes(parameterIndex);
+	}
+
+	@Override
+	public Date getDate(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getDate(parameterIndex);
+	}
+
+	@Override
+	public Time getTime(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getTime(parameterIndex);
+	}
+
+	@Override
+	public Timestamp getTimestamp(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getTimestamp(parameterIndex);
+	}
+
+	@Override
+	public Object getObject(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getObject(parameterIndex);
+	}
+
+	@Override
+	public BigDecimal getBigDecimal(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getBigDecimal(parameterIndex);
+	}
+
+	@Override
+	public Object getObject(int parameterIndex, Map<String, Class<?>> map) throws SQLException {
+		return ((CallableStatement)stmt).getObject(parameterIndex, map);
+	}
+
+	@Override
+	public Ref getRef(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getRef(parameterIndex);
+	}
+
+	@Override
+	public Blob getBlob(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getBlob(parameterIndex);
+	}
+
+	@Override
+	public Clob getClob(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getClob(parameterIndex);
+	}
+
+	@Override
+	public Array getArray(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getArray(parameterIndex);
+	}
+
+	@Override
+	public Date getDate(int parameterIndex, Calendar cal) throws SQLException {
+		return ((CallableStatement)stmt).getDate(parameterIndex, cal);
+	}
+
+	@Override
+	public Time getTime(int parameterIndex, Calendar cal) throws SQLException {
+		return ((CallableStatement)stmt).getTime(parameterIndex, cal);
+	}
+
+	@Override
+	public Timestamp getTimestamp(int parameterIndex, Calendar cal) throws SQLException {
+		return ((CallableStatement)stmt).getTimestamp(parameterIndex, cal);
+	}
+
+	@Override
+	public void registerOutParameter(int parameterIndex, int sqlType, String typeName) throws SQLException {
+		((CallableStatement)stmt).registerOutParameter(parameterIndex, sqlType, typeName);
+	}
+
+	@Override
+	public void registerOutParameter(String parameterName, int sqlType) throws SQLException {
+		((CallableStatement)stmt).registerOutParameter(parameterName, sqlType);
+	}
+
+	@Override
+	public void registerOutParameter(String parameterName, int sqlType, int scale) throws SQLException {
+		((CallableStatement)stmt).registerOutParameter(parameterName, sqlType, scale);
+	}
+
+	@Override
+	public void registerOutParameter(String parameterName, int sqlType, String typeName) throws SQLException {
+		((CallableStatement)stmt).registerOutParameter(parameterName, sqlType, typeName);
+	}
+
+	@Override
+	public URL getURL(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getURL(parameterIndex);
+	}
+
+	@Override
+	public void setURL(String parameterName, URL val) throws SQLException {
+		((CallableStatement)stmt).setURL(parameterName, val);
+	}
+
+	@Override
+	public void setNull(String parameterName, int sqlType) throws SQLException {
+		((CallableStatement)stmt).setNull(parameterName, sqlType);
+	}
+
+	@Override
+	public void setBoolean(String parameterName, boolean x) throws SQLException {
+		((CallableStatement)stmt).setBoolean(parameterName, x);
+	}
+
+	@Override
+	public void setByte(String parameterName, byte x) throws SQLException {
+		((CallableStatement)stmt).setByte(parameterName, x);
+	}
+
+	@Override
+	public void setShort(String parameterName, short x) throws SQLException {
+		((CallableStatement)stmt).setShort(parameterName, x);
+	}
+
+	@Override
+	public void setInt(String parameterName, int x) throws SQLException {
+		((CallableStatement)stmt).setInt(parameterName, x);
+	}
+
+	@Override
+	public void setLong(String parameterName, long x) throws SQLException {
+		((CallableStatement)stmt).setLong(parameterName, x);
+	}
+
+	@Override
+	public void setFloat(String parameterName, float x) throws SQLException {
+		((CallableStatement)stmt).setFloat(parameterName, x);
+	}
+
+	@Override
+	public void setDouble(String parameterName, double x) throws SQLException {
+		((CallableStatement)stmt).setDouble(parameterName, x);
+	}
+
+	@Override
+	public void setBigDecimal(String parameterName, BigDecimal x) throws SQLException {
+		((CallableStatement)stmt).setBigDecimal(parameterName, x);
+	}
+
+	@Override
+	public void setString(String parameterName, String x) throws SQLException {
+		((CallableStatement)stmt).setString(parameterName, x);
+	}
+
+	@Override
+	public void setBytes(String parameterName, byte[] x) throws SQLException {
+		((CallableStatement)stmt).setBytes(parameterName, x);
+	}
+
+	@Override
+	public void setDate(String parameterName, Date x) throws SQLException {
+		((CallableStatement)stmt).setDate(parameterName, x);
+	}
+
+	@Override
+	public void setTime(String parameterName, Time x) throws SQLException {
+		((CallableStatement)stmt).setTime(parameterName, x);
+	}
+
+	@Override
+	public void setTimestamp(String parameterName, Timestamp x) throws SQLException {
+		((CallableStatement)stmt).setTimestamp(parameterName, x);
+	}
+
+	@Override
+	public void setAsciiStream(String parameterName, InputStream x, int length) throws SQLException {
+		((CallableStatement)stmt).setAsciiStream(parameterName, x, length);
+	}
+
+	@Override
+	public void setBinaryStream(String parameterName, InputStream x, int length) throws SQLException {
+		((CallableStatement)stmt).setBinaryStream(parameterName, x, length);
+	}
+
+	@Override
+	public void setObject(String parameterName, Object x, int targetSqlType, int scale) throws SQLException {
+		((CallableStatement)stmt).setObject(parameterName, x, targetSqlType, scale);
+	}
+
+	@Override
+	public void setObject(String parameterName, Object x, int targetSqlType) throws SQLException {
+		((CallableStatement)stmt).setObject(parameterName, x, targetSqlType);
+	}
+
+	@Override
+	public void setObject(String parameterName, Object x) throws SQLException {
+		((CallableStatement)stmt).setObject(parameterName, x);
+	}
+
+	@Override
+	public void setCharacterStream(String parameterName, Reader reader, int length) throws SQLException {
+		((CallableStatement)stmt).setCharacterStream(parameterName, reader, length);
+	}
+
+	@Override
+	public void setDate(String parameterName, Date x, Calendar cal) throws SQLException {
+		((CallableStatement)stmt).setDate(parameterName, x, cal);
+	}
+
+	@Override
+	public void setTime(String parameterName, Time x, Calendar cal) throws SQLException {
+		((CallableStatement)stmt).setTime(parameterName, x, cal);
+	}
+
+	@Override
+	public void setTimestamp(String parameterName, Timestamp x, Calendar cal) throws SQLException {
+		((CallableStatement)stmt).setTimestamp(parameterName, x, cal);
+	}
+
+	@Override
+	public void setNull(String parameterName, int sqlType, String typeName) throws SQLException {
+		((CallableStatement)stmt).setNull(parameterName, sqlType, typeName);
+	}
+
+	@Override
+	public String getString(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getString(parameterName);
+	}
+
+	@Override
+	public boolean getBoolean(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getBoolean(parameterName);
+	}
+
+	@Override
+	public byte getByte(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getByte(parameterName);
+	}
+
+	@Override
+	public short getShort(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getShort(parameterName);
+	}
+
+	@Override
+	public int getInt(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getInt(parameterName);
+	}
+
+	@Override
+	public long getLong(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getLong(parameterName);
+	}
+
+	@Override
+	public float getFloat(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getFloat(parameterName);
+	}
+
+	@Override
+	public double getDouble(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getDouble(parameterName);
+	}
+
+	@Override
+	public byte[] getBytes(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getBytes(parameterName);
+	}
+
+	@Override
+	public Date getDate(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getDate(parameterName);
+	}
+
+	@Override
+	public Time getTime(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getTime(parameterName);
+	}
+
+	@Override
+	public Timestamp getTimestamp(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getTimestamp(parameterName);
+	}
+
+	@Override
+	public Object getObject(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getObject(parameterName);
+	}
+
+	@Override
+	public BigDecimal getBigDecimal(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getBigDecimal(parameterName);
+	}
+
+	@Override
+	public Object getObject(String parameterName, Map<String, Class<?>> map) throws SQLException {
+		return ((CallableStatement)stmt).getObject(parameterName, map);
+	}
+
+	@Override
+	public Ref getRef(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getRef(parameterName);
+	}
+
+	@Override
+	public Blob getBlob(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getBlob(parameterName);
+	}
+
+	@Override
+	public Clob getClob(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getClob(parameterName);
+	}
+
+	@Override
+	public Array getArray(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getArray(parameterName);
+	}
+
+	@Override
+	public Date getDate(String parameterName, Calendar cal) throws SQLException {
+		return ((CallableStatement)stmt).getDate(parameterName, cal);
+	}
+
+	@Override
+	public Time getTime(String parameterName, Calendar cal) throws SQLException {
+		return ((CallableStatement)stmt).getTime(parameterName, cal);
+	}
+
+	@Override
+	public Timestamp getTimestamp(String parameterName, Calendar cal) throws SQLException {
+		return ((CallableStatement)stmt).getTimestamp(parameterName, cal);
+	}
+
+	@Override
+	public URL getURL(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getURL(parameterName);
+	}
+
+	@Override
+	public RowId getRowId(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getRowId(parameterIndex);
+	}
+
+	@Override
+	public RowId getRowId(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getRowId(parameterName);
+	}
+
+	@Override
+	public void setRowId(String parameterName, RowId x) throws SQLException {
+		((CallableStatement)stmt).setRowId(parameterName, x);
+	}
+
+	@Override
+	public void setNString(String parameterName, String value) throws SQLException {
+		((CallableStatement)stmt).setNString(parameterName, value);
+	}
+
+	@Override
+	public void setNCharacterStream(String parameterName, Reader value, long length) throws SQLException {
+		((CallableStatement)stmt).setNCharacterStream(parameterName, value, length);
+	}
+
+	@Override
+	public void setNClob(String parameterName, NClob value) throws SQLException {
+		((CallableStatement)stmt).setNClob(parameterName, value);
+	}
+
+	@Override
+	public void setClob(String parameterName, Reader reader, long length) throws SQLException {
+		((CallableStatement)stmt).setClob(parameterName, reader, length);
+	}
+
+	@Override
+	public void setBlob(String parameterName, InputStream inputStream, long length) throws SQLException {
+		((CallableStatement)stmt).setBlob(parameterName, inputStream, length);
+	}
+
+	@Override
+	public void setNClob(String parameterName, Reader reader, long length) throws SQLException {
+		((CallableStatement)stmt).setNClob(parameterName, reader, length);
+	}
+
+	@Override
+	public NClob getNClob(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getNClob(parameterIndex);
+	}
+
+	@Override
+	public NClob getNClob(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getNClob(parameterName);
+	}
+
+	@Override
+	public void setSQLXML(String parameterName, SQLXML xmlObject) throws SQLException {
+		((CallableStatement)stmt).setSQLXML(parameterName, xmlObject);
+	}
+
+	@Override
+	public SQLXML getSQLXML(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getSQLXML(parameterIndex);
+	}
+
+	@Override
+	public SQLXML getSQLXML(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getSQLXML(parameterName);
+	}
+
+	@Override
+	public String getNString(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getNString(parameterIndex);
+	}
+
+	@Override
+	public String getNString(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getNString(parameterName);
+	}
+
+	@Override
+	public Reader getNCharacterStream(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getNCharacterStream(parameterIndex);
+	}
+
+	@Override
+	public Reader getNCharacterStream(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getNCharacterStream(parameterName);
+	}
+
+	@Override
+	public Reader getCharacterStream(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getCharacterStream(parameterIndex);
+	}
+
+	@Override
+	public Reader getCharacterStream(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getCharacterStream(parameterName);
+	}
+
+	@Override
+	public void setBlob(String parameterName, Blob x) throws SQLException {
+		((CallableStatement)stmt).setBlob(parameterName, x);
+	}
+
+	@Override
+	public void setClob(String parameterName, Clob x) throws SQLException {
+		((CallableStatement)stmt).setClob(parameterName, x);
+	}
+
+	@Override
+	public void setAsciiStream(String parameterName, InputStream x, long length) throws SQLException {
+		((CallableStatement)stmt).setAsciiStream(parameterName, x, length);
+	}
+
+	@Override
+	public void setBinaryStream(String parameterName, InputStream x, long length) throws SQLException {
+		((CallableStatement)stmt).setBinaryStream(parameterName, x, length);
+	}
+
+	@Override
+	public void setCharacterStream(String parameterName, Reader reader, long length) throws SQLException {
+		((CallableStatement)stmt).setCharacterStream(parameterName, reader, length);
+	}
+
+	@Override
+	public void setAsciiStream(String parameterName, InputStream x) throws SQLException {
+		((CallableStatement)stmt).setAsciiStream(parameterName, x);
+	}
+
+	@Override
+	public void setBinaryStream(String parameterName, InputStream x) throws SQLException {
+		((CallableStatement)stmt).setBinaryStream(parameterName, x);
+	}
+
+	@Override
+	public void setCharacterStream(String parameterName, Reader reader) throws SQLException {
+		((CallableStatement)stmt).setCharacterStream(parameterName, reader);
+	}
+
+	@Override
+	public void setNCharacterStream(String parameterName, Reader value) throws SQLException {
+		((CallableStatement)stmt).setNCharacterStream(parameterName, value);
+	}
+
+	@Override
+	public void setClob(String parameterName, Reader reader) throws SQLException {
+		((CallableStatement)stmt).setClob(parameterName, reader);
+	}
+
+	@Override
+	public void setBlob(String parameterName, InputStream inputStream) throws SQLException {
+		((CallableStatement)stmt).setBlob(parameterName, inputStream);
+	}
+
+	@Override
+	public void setNClob(String parameterName, Reader reader) throws SQLException {
+		((CallableStatement)stmt).setNClob(parameterName, reader);
+	}
+
+	@Override
+	public <T> T getObject(int parameterIndex, Class<T> type) throws SQLException {
+		return ((CallableStatement)stmt).getObject(parameterIndex, type);
+	}
+
+	@Override
+	public <T> T getObject(String parameterName, Class<T> type) throws SQLException {
+		return ((CallableStatement)stmt).getObject(parameterName, type);
+	}
+
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/MdbcConnection.java b/mdbc-server/src/main/java/org/onap/music/mdbc/MdbcConnection.java
new file mode 100644
index 0000000..352eacf
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/MdbcConnection.java
@@ -0,0 +1,438 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc;
+
+import java.sql.Array;
+import java.sql.Blob;
+import java.sql.CallableStatement;
+import java.sql.Clob;
+import java.sql.Connection;
+import java.sql.DatabaseMetaData;
+import java.sql.NClob;
+import java.sql.PreparedStatement;
+import java.sql.SQLClientInfoException;
+import java.sql.SQLException;
+import java.sql.SQLWarning;
+import java.sql.SQLXML;
+import java.sql.Savepoint;
+import java.sql.Statement;
+import java.sql.Struct;
+import java.util.Map;
+import java.util.Properties;
+import java.util.concurrent.Executor;
+
+import org.onap.music.exceptions.MDBCServiceException;
+import org.onap.music.exceptions.QueryException;
+import org.onap.music.logging.EELFLoggerDelegate;
+import org.onap.music.logging.format.AppMessages;
+import org.onap.music.logging.format.ErrorSeverity;
+import org.onap.music.logging.format.ErrorTypes;
+import org.onap.music.mdbc.mixins.MusicInterface;
+import org.onap.music.mdbc.tables.TxCommitProgress;
+
+
+/**
+ * ProxyConnection is a proxy to a JDBC driver Connection.  It uses the MusicSqlManager to copy
+ * data to and from Cassandra and the underlying JDBC database as needed.  It will notify the underlying
+ * MusicSqlManager of any calls to <code>commit(), rollback()</code> or <code>setAutoCommit()</code>.
+ * Otherwise it just forwards all requests to the underlying Connection of the 'real' database.
+ *
+ * @author Robert Eby
+ */
+public class MdbcConnection implements Connection {
+	private static EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(MdbcConnection.class);
+	
+	private final String id;			// This is the transaction id, assigned to this connection. There is no need to change the id, if connection is reused
+	private final Connection conn;		// the JDBC Connection to the actual underlying database
+	private final MusicSqlManager mgr;	// there should be one MusicSqlManager in use per Connection
+	private final TxCommitProgress progressKeeper;
+	private final DatabasePartition partition;
+
+	public MdbcConnection(String id, String url, Connection c, Properties info, MusicInterface mi, TxCommitProgress progressKeeper, DatabasePartition partition) throws MDBCServiceException {
+		this.id = id;
+		if (c == null) {
+			throw new MDBCServiceException("Connection is null");
+		}
+		this.conn = c;
+		try {
+			this.mgr = new MusicSqlManager(url, c, info, mi);
+		} catch (MDBCServiceException e) {
+		    logger.error("Failure in creating Music SQL Manager");
+			logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(), AppMessages.QUERYERROR, ErrorTypes.QUERYERROR, ErrorSeverity.CRITICAL);
+			throw e;
+		}
+		try {
+			this.mgr.setAutoCommit(c.getAutoCommit(),null,null,null);
+		} catch (SQLException e) {
+            logger.error("Failure in autocommit");
+			logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(), AppMessages.QUERYERROR, ErrorTypes.QUERYERROR, ErrorSeverity.CRITICAL);
+		}
+
+		// Verify the tables in MUSIC match the tables in the database
+		// and create triggers on any tables that need them
+		//mgr.synchronizeTableData();
+		if ( mgr != null ) try {
+			mgr.synchronizeTables();
+		} catch (QueryException e) {
+		    logger.error("Error syncrhonizing tables");
+			logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(), AppMessages.QUERYERROR, ErrorTypes.QUERYERROR, ErrorSeverity.CRITICAL);
+		}
+		else {
+			logger.error(EELFLoggerDelegate.errorLogger, "MusicSqlManager was not correctly created", AppMessages.UNKNOWNERROR, ErrorTypes.UNKNOWN, ErrorSeverity.FATAL);
+			throw new MDBCServiceException("Music SQL Manager object is null or invalid");
+		}
+		this.progressKeeper = progressKeeper;
+		this.partition = partition;
+        logger.debug("Mdbc connection created with id: "+id);
+	}
+
+	@Override
+	public <T> T unwrap(Class<T> iface) throws SQLException {
+		logger.error(EELFLoggerDelegate.errorLogger, "proxyconn unwrap: " + iface.getName());
+		return conn.unwrap(iface);
+	}
+
+	@Override
+	public boolean isWrapperFor(Class<?> iface) throws SQLException {
+		logger.error(EELFLoggerDelegate.errorLogger, "proxystatement iswrapperfor: " + iface.getName());
+		return conn.isWrapperFor(iface);
+	}
+
+	@Override
+	public Statement createStatement() throws SQLException {
+		return new MdbcCallableStatement(conn.createStatement(), mgr);
+	}
+
+	@Override
+	public PreparedStatement prepareStatement(String sql) throws SQLException {
+		//TODO: grab the sql call from here and all the other preparestatement calls
+		return new MdbcPreparedStatement(conn.prepareStatement(sql), sql, mgr);
+	}
+
+	@Override
+	public CallableStatement prepareCall(String sql) throws SQLException {
+		return new MdbcCallableStatement(conn.prepareCall(sql), mgr);
+	}
+
+	@Override
+	public String nativeSQL(String sql) throws SQLException {
+		return conn.nativeSQL(sql);
+	}
+
+	@Override
+	public void setAutoCommit(boolean autoCommit) throws SQLException {
+		boolean b = conn.getAutoCommit();
+		if (b != autoCommit) {
+		    if(progressKeeper!=null) progressKeeper.commitRequested(id);
+			try {
+				mgr.setAutoCommit(autoCommit,id,progressKeeper,partition);
+				if(progressKeeper!=null)
+                    progressKeeper.setMusicDone(id);
+			} catch (MDBCServiceException e) {
+				logger.error(EELFLoggerDelegate.errorLogger, "Commit to music failed", AppMessages.UNKNOWNERROR, ErrorTypes.UNKNOWN, ErrorSeverity.FATAL);
+				throw new SQLException("Failure commiting to MUSIC");
+			}
+			conn.setAutoCommit(autoCommit);
+            if(progressKeeper!=null) {
+                progressKeeper.setSQLDone(id);
+            }
+            if(progressKeeper!=null&&progressKeeper.isComplete(id)){
+                progressKeeper.reinitializeTxProgress(id);
+            }
+		}
+	}
+
+	@Override
+	public boolean getAutoCommit() throws SQLException {
+		return conn.getAutoCommit();
+	}
+
+	@Override
+	public void commit() throws SQLException {
+		if(progressKeeper.isComplete(id)) {
+			return;
+		}
+		if(progressKeeper != null) {
+			progressKeeper.commitRequested(id);
+		}
+
+		try {
+			mgr.commit(id,progressKeeper,partition);
+		} catch (MDBCServiceException e) {
+			//If the commit fail, then a new commitId should be used 
+			logger.error(EELFLoggerDelegate.errorLogger, "Commit to music failed", AppMessages.UNKNOWNERROR, ErrorTypes.UNKNOWN, ErrorSeverity.FATAL);
+			throw new SQLException("Failure commiting to MUSIC");
+		}
+
+		if(progressKeeper != null) {
+			progressKeeper.setMusicDone(id);
+		}
+
+		conn.commit();
+
+		if(progressKeeper != null) {
+			progressKeeper.setSQLDone(id);
+		}
+		//MusicMixin.releaseZKLocks(MusicMixin.currentLockMap.get(getConnID()));
+        if(progressKeeper.isComplete(id)){
+		    progressKeeper.reinitializeTxProgress(id);
+        }
+	}
+
+	@Override
+	public void rollback() throws SQLException {
+		mgr.rollback();
+		conn.rollback();
+		progressKeeper.reinitializeTxProgress(id);
+	}
+
+	@Override
+	public void close() throws SQLException {
+	    logger.debug("Closing mdbc connection with id:"+id);
+		if (mgr != null) {
+            logger.debug("Closing mdbc manager with id:"+id);
+			mgr.close();
+		}
+		if (conn != null && !conn.isClosed()) {
+            logger.debug("Closing jdbc from mdbc with id:"+id);
+			conn.close();
+			logger.debug("Connection was closed for id:" + id);
+		}
+	}
+
+	@Override
+	public boolean isClosed() throws SQLException {
+		return conn.isClosed();
+	}
+
+	@Override
+	public DatabaseMetaData getMetaData() throws SQLException {
+		return conn.getMetaData();
+	}
+
+	@Override
+	public void setReadOnly(boolean readOnly) throws SQLException {
+		conn.setReadOnly(readOnly);
+	}
+
+	@Override
+	public boolean isReadOnly() throws SQLException {
+		return conn.isReadOnly();
+	}
+
+	@Override
+	public void setCatalog(String catalog) throws SQLException {
+		conn.setCatalog(catalog);
+	}
+
+	@Override
+	public String getCatalog() throws SQLException {
+		return conn.getCatalog();
+	}
+
+	@Override
+	public void setTransactionIsolation(int level) throws SQLException {
+		conn.setTransactionIsolation(level);
+	}
+
+	@Override
+	public int getTransactionIsolation() throws SQLException {
+		return conn.getTransactionIsolation();
+	}
+
+	@Override
+	public SQLWarning getWarnings() throws SQLException {
+		return conn.getWarnings();
+	}
+
+	@Override
+	public void clearWarnings() throws SQLException {
+		conn.clearWarnings();
+	}
+
+	@Override
+	public Statement createStatement(int resultSetType, int resultSetConcurrency) throws SQLException {
+		return new MdbcCallableStatement(conn.createStatement(resultSetType, resultSetConcurrency), mgr);
+	}
+
+	@Override
+	public PreparedStatement prepareStatement(String sql, int resultSetType, int resultSetConcurrency)
+			throws SQLException {
+		return new MdbcCallableStatement(conn.prepareStatement(sql, resultSetType, resultSetConcurrency), sql, mgr);
+	}
+
+	@Override
+	public CallableStatement prepareCall(String sql, int resultSetType, int resultSetConcurrency) throws SQLException {
+		return new MdbcCallableStatement(conn.prepareCall(sql, resultSetType, resultSetConcurrency), mgr);
+	}
+
+	@Override
+	public Map<String, Class<?>> getTypeMap() throws SQLException {
+		return conn.getTypeMap();
+	}
+
+	@Override
+	public void setTypeMap(Map<String, Class<?>> map) throws SQLException {
+		conn.setTypeMap(map);
+	}
+
+	@Override
+	public void setHoldability(int holdability) throws SQLException {
+		conn.setHoldability(holdability);
+	}
+
+	@Override
+	public int getHoldability() throws SQLException {
+		return conn.getHoldability();
+	}
+
+	@Override
+	public Savepoint setSavepoint() throws SQLException {
+		return conn.setSavepoint();
+	}
+
+	@Override
+	public Savepoint setSavepoint(String name) throws SQLException {
+		return conn.setSavepoint(name);
+	}
+
+	@Override
+	public void rollback(Savepoint savepoint) throws SQLException {
+		conn.rollback(savepoint);
+	}
+
+	@Override
+	public void releaseSavepoint(Savepoint savepoint) throws SQLException {
+		conn.releaseSavepoint(savepoint);
+	}
+
+	@Override
+	public Statement createStatement(int resultSetType, int resultSetConcurrency, int resultSetHoldability)
+			throws SQLException {
+		return new MdbcCallableStatement(conn.createStatement(resultSetType, resultSetConcurrency, resultSetHoldability), mgr);
+	}
+
+	@Override
+	public PreparedStatement prepareStatement(String sql, int resultSetType, int resultSetConcurrency,
+			int resultSetHoldability) throws SQLException {
+		return new MdbcCallableStatement(conn.prepareStatement(sql, resultSetType, resultSetConcurrency, resultSetHoldability), sql, mgr);
+	}
+
+	@Override
+	public CallableStatement prepareCall(String sql, int resultSetType, int resultSetConcurrency,
+			int resultSetHoldability) throws SQLException {
+		return new MdbcCallableStatement(conn.prepareCall(sql, resultSetType, resultSetConcurrency, resultSetHoldability), mgr);
+	}
+
+	@Override
+	public PreparedStatement prepareStatement(String sql, int autoGeneratedKeys) throws SQLException {
+		return new MdbcPreparedStatement(conn.prepareStatement(sql, autoGeneratedKeys), sql, mgr);
+	}
+
+	@Override
+	public PreparedStatement prepareStatement(String sql, int[] columnIndexes) throws SQLException {
+		return new MdbcPreparedStatement(conn.prepareStatement(sql, columnIndexes), sql, mgr);
+	}
+
+	@Override
+	public PreparedStatement prepareStatement(String sql, String[] columnNames) throws SQLException {
+		return new MdbcPreparedStatement(conn.prepareStatement(sql, columnNames), sql, mgr);
+	}
+
+	@Override
+	public Clob createClob() throws SQLException {
+		return conn.createClob();
+	}
+
+	@Override
+	public Blob createBlob() throws SQLException {
+		return conn.createBlob();
+	}
+
+	@Override
+	public NClob createNClob() throws SQLException {
+		return conn.createNClob();
+	}
+
+	@Override
+	public SQLXML createSQLXML() throws SQLException {
+		return conn.createSQLXML();
+	}
+
+	@Override
+	public boolean isValid(int timeout) throws SQLException {
+		return conn.isValid(timeout);
+	}
+
+	@Override
+	public void setClientInfo(String name, String value) throws SQLClientInfoException {
+		conn.setClientInfo(name, value);
+	}
+
+	@Override
+	public void setClientInfo(Properties properties) throws SQLClientInfoException {
+		conn.setClientInfo(properties);
+	}
+
+	@Override
+	public String getClientInfo(String name) throws SQLException {
+		return conn.getClientInfo(name);
+	}
+
+	@Override
+	public Properties getClientInfo() throws SQLException {
+		return conn.getClientInfo();
+	}
+
+	@Override
+	public Array createArrayOf(String typeName, Object[] elements) throws SQLException {
+		return conn.createArrayOf(typeName, elements);
+	}
+
+	@Override
+	public Struct createStruct(String typeName, Object[] attributes) throws SQLException {
+		return conn.createStruct(typeName, attributes);
+	}
+
+	@Override
+	public void setSchema(String schema) throws SQLException {
+		conn.setSchema(schema);
+	}
+
+	@Override
+	public String getSchema() throws SQLException {
+		return conn.getSchema();
+	}
+
+	@Override
+	public void abort(Executor executor) throws SQLException {
+		conn.abort(executor);
+	}
+
+	@Override
+	public void setNetworkTimeout(Executor executor, int milliseconds) throws SQLException {
+		conn.setNetworkTimeout(executor, milliseconds);
+	}
+
+	@Override
+	public int getNetworkTimeout() throws SQLException {
+		return conn.getNetworkTimeout();
+	}
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/MdbcPreparedStatement.java b/mdbc-server/src/main/java/org/onap/music/mdbc/MdbcPreparedStatement.java
new file mode 100644
index 0000000..fa08d3c
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/MdbcPreparedStatement.java
@@ -0,0 +1,762 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc;
+
+import java.io.InputStream;
+import java.io.Reader;
+import java.math.BigDecimal;
+import java.net.URL;
+import java.sql.Array;
+import java.sql.Blob;
+import java.sql.CallableStatement;
+import java.sql.Clob;
+import java.sql.Connection;
+import java.sql.Date;
+import java.sql.NClob;
+import java.sql.ParameterMetaData;
+import java.sql.PreparedStatement;
+import java.sql.Ref;
+import java.sql.ResultSet;
+import java.sql.ResultSetMetaData;
+import java.sql.RowId;
+import java.sql.SQLException;
+import java.sql.SQLWarning;
+import java.sql.SQLXML;
+import java.sql.Statement;
+import java.sql.Time;
+import java.sql.Timestamp;
+import java.util.Calendar;
+
+import org.apache.commons.lang3.StringUtils;
+
+import org.onap.music.logging.EELFLoggerDelegate;
+
+/**
+ * ProxyStatement is a proxy Statement that front ends Statements from the underlying JDBC driver.  It passes all operations through,
+ * and invokes the MusicSqlManager when there is the possibility that database tables have been created or dropped.
+ *
+ * @author Robert Eby
+ */
+public class MdbcPreparedStatement extends MdbcStatement implements PreparedStatement {
+	private EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(MdbcPreparedStatement.class);
+	private static final String DATASTAX_PREFIX = "com.datastax.driver";
+
+	final String sql;			// holds the sql statement if prepared statement
+	String[] params;			// holds the parameters if prepared statement, indexing starts at 1
+
+
+	public MdbcPreparedStatement(Statement stmt, MusicSqlManager m) {
+		super(stmt, m);
+		this.sql = null;
+	}
+
+	public MdbcPreparedStatement(Statement stmt, String sql, MusicSqlManager mgr) {
+		super(stmt, sql, mgr);
+		this.sql = sql;
+		//indexing starts at 1
+		params = new String[StringUtils.countMatches(sql, "?")+1];
+	}
+	
+	@Override
+	public <T> T unwrap(Class<T> iface) throws SQLException {
+		return stmt.unwrap(iface);
+	}
+
+	@Override
+	public boolean isWrapperFor(Class<?> iface) throws SQLException {
+		return stmt.isWrapperFor(iface);
+	}
+
+	@Override
+	public ResultSet executeQuery(String sql) throws SQLException {
+		logger.debug(EELFLoggerDelegate.applicationLogger,"executeQuery: "+sql);
+		ResultSet r = null;
+		try {
+			mgr.preStatementHook(sql);
+			r = stmt.executeQuery(sql);
+			mgr.postStatementHook(sql);
+			synchronizeTables(sql);
+		} catch (Exception e) {
+			String nm = e.getClass().getName();
+			logger.error(EELFLoggerDelegate.errorLogger, "executeQuery: exception "+nm);
+			if (!nm.startsWith(DATASTAX_PREFIX))
+				throw e;
+		}
+		return r;
+	}
+
+	@Override
+	public int executeUpdate(String sql) throws SQLException {
+		logger.debug(EELFLoggerDelegate.applicationLogger,"executeUpdate: "+sql);
+		
+		int n = 0;
+		try {
+			mgr.preStatementHook(sql);
+			n = stmt.executeUpdate(sql);
+			mgr.postStatementHook(sql);
+			synchronizeTables(sql);
+		} catch (Exception e) {
+			String nm = e.getClass().getName();
+			logger.error(EELFLoggerDelegate.errorLogger, "executeUpdate: exception "+nm+" "+e);
+			if (!nm.startsWith(DATASTAX_PREFIX))
+				throw e;
+		}
+		return n;
+	}
+
+	@Override
+	public void close() throws SQLException {
+		logger.debug(EELFLoggerDelegate.applicationLogger,"Statement close: ");
+		stmt.close();
+	}
+
+	@Override
+	public int getMaxFieldSize() throws SQLException {
+		logger.debug(EELFLoggerDelegate.applicationLogger,"getMaxFieldSize");
+		return stmt.getMaxFieldSize();
+	}
+
+	@Override
+	public void setMaxFieldSize(int max) throws SQLException {
+		stmt.setMaxFieldSize(max);
+	}
+
+	@Override
+	public int getMaxRows() throws SQLException {
+		return stmt.getMaxRows();
+	}
+
+	@Override
+	public void setMaxRows(int max) throws SQLException {
+		stmt.setMaxRows(max);
+	}
+
+	@Override
+	public void setEscapeProcessing(boolean enable) throws SQLException {
+		stmt.setEscapeProcessing(enable);
+	}
+
+	@Override
+	public int getQueryTimeout() throws SQLException {
+		return stmt.getQueryTimeout();
+	}
+
+	@Override
+	public void setQueryTimeout(int seconds) throws SQLException {
+		logger.debug(EELFLoggerDelegate.applicationLogger,"setQueryTimeout seconds "+ seconds);
+		stmt.setQueryTimeout(seconds);
+	}
+
+	@Override
+	public void cancel() throws SQLException {
+		stmt.cancel();
+	}
+
+	@Override
+	public SQLWarning getWarnings() throws SQLException {
+		return stmt.getWarnings();
+	}
+
+	@Override
+	public void clearWarnings() throws SQLException {
+		stmt.clearWarnings();
+	}
+
+	@Override
+	public void setCursorName(String name) throws SQLException {
+		stmt.setCursorName(name);
+	}
+
+	@Override
+	public boolean execute(String sql) throws SQLException {
+		logger.debug(EELFLoggerDelegate.applicationLogger,"execute: "+sql);
+		boolean b = false;
+		try {
+			mgr.preStatementHook(sql);
+			b = stmt.execute(sql);
+			mgr.postStatementHook(sql);
+			synchronizeTables(sql);
+		} catch (Exception e) {
+			String nm = e.getClass().getName();
+			logger.error(EELFLoggerDelegate.errorLogger, "execute: exception "+nm+" "+e);
+			// Note: this seems to be the only call Camunda uses, so it is the only one I am fixing for now.
+			boolean ignore = nm.startsWith(DATASTAX_PREFIX);
+//			ignore |= (nm.startsWith("org.h2.jdbc.JdbcSQLException") && e.getMessage().contains("already exists"));
+			if (ignore) {
+				logger.warn("execute: exception (IGNORED) "+nm);
+			} else {
+				logger.error(EELFLoggerDelegate.errorLogger, " Exception "+nm+" "+e);
+				throw e;
+			}
+		}
+		return b;
+	}
+
+	@Override
+	public ResultSet getResultSet() throws SQLException {
+		return stmt.getResultSet();
+	}
+
+	@Override
+	public int getUpdateCount() throws SQLException {
+		return stmt.getUpdateCount();
+	}
+
+	@Override
+	public boolean getMoreResults() throws SQLException {
+		return stmt.getMoreResults();
+	}
+
+	@Override
+	public void setFetchDirection(int direction) throws SQLException {
+		stmt.setFetchDirection(direction);
+	}
+
+	@Override
+	public int getFetchDirection() throws SQLException {
+		return stmt.getFetchDirection();
+	}
+
+	@Override
+	public void setFetchSize(int rows) throws SQLException {
+		stmt.setFetchSize(rows);
+	}
+
+	@Override
+	public int getFetchSize() throws SQLException {
+		return stmt.getFetchSize();
+	}
+
+	@Override
+	public int getResultSetConcurrency() throws SQLException {
+		return stmt.getResultSetConcurrency();
+	}
+
+	@Override
+	public int getResultSetType() throws SQLException {
+		return stmt.getResultSetType();
+	}
+
+	@Override
+	public void addBatch(String sql) throws SQLException {
+		stmt.addBatch(sql);
+	}
+
+	@Override
+	public void clearBatch() throws SQLException {
+		stmt.clearBatch();
+	}
+
+	@Override
+	public int[] executeBatch() throws SQLException {
+		logger.debug(EELFLoggerDelegate.applicationLogger,"executeBatch: ");
+		int[] n = null;
+		try {
+			logger.debug(EELFLoggerDelegate.applicationLogger,"executeBatch() is not supported by MDBC; your results may be incorrect as a result.");
+			n = stmt.executeBatch();
+			synchronizeTables(null);
+		} catch (Exception e) {
+			String nm = e.getClass().getName();
+			logger.error(EELFLoggerDelegate.errorLogger,"executeBatch: exception "+nm);
+			if (!nm.startsWith(DATASTAX_PREFIX))
+				throw e;
+		}
+		return n;
+	}
+
+	@Override
+	public Connection getConnection() throws SQLException {
+		return stmt.getConnection();
+	}
+
+	@Override
+	public boolean getMoreResults(int current) throws SQLException {
+		return stmt.getMoreResults(current);
+	}
+
+	@Override
+	public ResultSet getGeneratedKeys() throws SQLException {
+		return stmt.getGeneratedKeys();
+	}
+
+	@Override
+	public int executeUpdate(String sql, int autoGeneratedKeys) throws SQLException {
+		logger.debug(EELFLoggerDelegate.applicationLogger,"executeUpdate: "+sql);
+		int n = 0;
+		try {
+			mgr.preStatementHook(sql);
+			n = stmt.executeUpdate(sql, autoGeneratedKeys);
+			mgr.postStatementHook(sql);
+			synchronizeTables(sql);
+		} catch (Exception e) {
+			String nm = e.getClass().getName();
+			logger.error(EELFLoggerDelegate.errorLogger,"executeUpdate: exception "+nm);
+			if (!nm.startsWith(DATASTAX_PREFIX))
+				throw e;
+		}
+		return n;
+	}
+
+	@Override
+	public int executeUpdate(String sql, int[] columnIndexes) throws SQLException {
+		logger.debug(EELFLoggerDelegate.applicationLogger,"executeUpdate: "+sql);
+		int n = 0;
+		try {
+			mgr.preStatementHook(sql);
+			n = stmt.executeUpdate(sql, columnIndexes);
+			mgr.postStatementHook(sql);
+			synchronizeTables(sql);
+		} catch (Exception e) {
+			String nm = e.getClass().getName();
+			logger.error(EELFLoggerDelegate.errorLogger,"executeUpdate: exception "+nm);
+			if (!nm.startsWith(DATASTAX_PREFIX))
+				throw e;
+		}
+		return n;
+	}
+
+	@Override
+	public int executeUpdate(String sql, String[] columnNames) throws SQLException {
+		logger.debug(EELFLoggerDelegate.applicationLogger,"executeUpdate: "+sql);
+		int n = 0;
+		try {
+			mgr.preStatementHook(sql);
+			n = stmt.executeUpdate(sql, columnNames);
+			mgr.postStatementHook(sql);
+			synchronizeTables(sql);
+		} catch (Exception e) {
+			String nm = e.getClass().getName();
+			logger.error(EELFLoggerDelegate.errorLogger,"executeUpdate: exception "+nm);
+			if (!nm.startsWith(DATASTAX_PREFIX))
+				throw e;
+		}
+		return n;
+	}
+
+	@Override
+	public boolean execute(String sql, int autoGeneratedKeys) throws SQLException {
+		logger.debug(EELFLoggerDelegate.applicationLogger,"execute: "+sql);
+		boolean b = false;
+		try {
+			mgr.preStatementHook(sql);
+			b = stmt.execute(sql, autoGeneratedKeys);
+			mgr.postStatementHook(sql);
+			synchronizeTables(sql);
+		} catch (Exception e) {
+			String nm = e.getClass().getName();
+			logger.error(EELFLoggerDelegate.errorLogger,"execute: exception "+nm);
+			if (!nm.startsWith(DATASTAX_PREFIX))
+				throw e;
+		}
+		return b;
+	}
+
+	@Override
+	public boolean execute(String sql, int[] columnIndexes) throws SQLException {
+		logger.debug(EELFLoggerDelegate.applicationLogger,"execute: "+sql);
+		boolean b = false;
+		try {
+			mgr.preStatementHook(sql);
+			b = stmt.execute(sql, columnIndexes);
+			mgr.postStatementHook(sql);
+			synchronizeTables(sql);
+		} catch (Exception e) {
+			String nm = e.getClass().getName();
+			logger.error(EELFLoggerDelegate.errorLogger,"execute: exception "+nm);
+			if (!nm.startsWith(DATASTAX_PREFIX))
+				throw e;
+		}
+		return b;
+	}
+
+	@Override
+	public boolean execute(String sql, String[] columnNames) throws SQLException {
+		logger.debug(EELFLoggerDelegate.applicationLogger,"execute: "+sql);
+		boolean b = false;
+		try {
+			mgr.preStatementHook(sql);
+			b = stmt.execute(sql, columnNames);
+			mgr.postStatementHook(sql);
+			synchronizeTables(sql);
+		} catch (Exception e) {
+			String nm = e.getClass().getName();
+			logger.error(EELFLoggerDelegate.errorLogger,"execute: exception "+nm);
+			if (!nm.startsWith(DATASTAX_PREFIX))
+				throw e;
+		}
+		return b;
+	}
+
+	@Override
+	public int getResultSetHoldability() throws SQLException {
+		return stmt.getResultSetHoldability();
+	}
+
+	@Override
+	public boolean isClosed() throws SQLException {
+		return stmt.isClosed();
+	}
+
+	@Override
+	public void setPoolable(boolean poolable) throws SQLException {
+		stmt.setPoolable(poolable);
+	}
+
+	@Override
+	public boolean isPoolable() throws SQLException {
+		return stmt.isPoolable();
+	}
+
+	@Override
+	public void closeOnCompletion() throws SQLException {
+		stmt.closeOnCompletion();
+	}
+
+	@Override
+	public boolean isCloseOnCompletion() throws SQLException {
+		return stmt.isCloseOnCompletion();
+	}
+
+	@Override
+	public ResultSet executeQuery() throws SQLException {
+		logger.debug(EELFLoggerDelegate.applicationLogger,"executeQuery: "+sql);
+		ResultSet r = null;
+		try {
+			mgr.preStatementHook(sql);
+			r = ((PreparedStatement)stmt).executeQuery();;
+			mgr.postStatementHook(sql);
+			synchronizeTables(sql);
+		} catch (Exception e) {
+			e.printStackTrace();
+			String nm = e.getClass().getName();
+			logger.error(EELFLoggerDelegate.errorLogger,"executeQuery: exception "+nm);
+			if (!nm.startsWith(DATASTAX_PREFIX))
+				throw e;
+		}
+		return r;
+	}
+
+	@Override
+	public int executeUpdate() throws SQLException {
+		logger.debug(EELFLoggerDelegate.applicationLogger,"executeUpdate: "+sql);
+		int n = 0;
+		try {
+			mgr.preStatementHook(sql);
+			n = ((PreparedStatement)stmt).executeUpdate();
+			mgr.postStatementHook(sql);
+			synchronizeTables(sql);
+		} catch (Exception e) {
+			e.printStackTrace();
+			String nm = e.getClass().getName();
+			logger.error(EELFLoggerDelegate.errorLogger,"executeUpdate: exception "+nm);
+			if (!nm.startsWith(DATASTAX_PREFIX))
+				throw e;
+		}
+		return n;
+	}
+
+	@Override
+	public void setNull(int parameterIndex, int sqlType) throws SQLException {
+		((PreparedStatement)stmt).setNull(parameterIndex, sqlType);
+	}
+
+	@Override
+	public void setBoolean(int parameterIndex, boolean x) throws SQLException {
+		((PreparedStatement)stmt).setBoolean(parameterIndex, x);
+	}
+
+	@Override
+	public void setByte(int parameterIndex, byte x) throws SQLException {
+		((PreparedStatement)stmt).setByte(parameterIndex, x);
+	}
+
+	@Override
+	public void setShort(int parameterIndex, short x) throws SQLException {
+		((PreparedStatement)stmt).setShort(parameterIndex, x);
+	}
+
+	@Override
+	public void setInt(int parameterIndex, int x) throws SQLException {
+		((PreparedStatement)stmt).setInt(parameterIndex, x);
+	}
+
+	@Override
+	public void setLong(int parameterIndex, long x) throws SQLException {
+		((PreparedStatement)stmt).setLong(parameterIndex, x);
+	}
+
+	@Override
+	public void setFloat(int parameterIndex, float x) throws SQLException {
+		((PreparedStatement)stmt).setFloat(parameterIndex, x);
+	}
+
+	@Override
+	public void setDouble(int parameterIndex, double x) throws SQLException {
+		((PreparedStatement)stmt).setDouble(parameterIndex, x);
+	}
+
+	@Override
+	public void setBigDecimal(int parameterIndex, BigDecimal x) throws SQLException {
+		((PreparedStatement)stmt).setBigDecimal(parameterIndex, x);
+	}
+
+	@Override
+	public void setString(int parameterIndex, String x) throws SQLException {
+		((PreparedStatement)stmt).setString(parameterIndex, x);
+		params[parameterIndex] = x;
+	}
+
+	@Override
+	public void setBytes(int parameterIndex, byte[] x) throws SQLException {
+		((PreparedStatement)stmt).setBytes(parameterIndex, x);
+	}
+
+	@Override
+	public void setDate(int parameterIndex, Date x) throws SQLException {
+		((PreparedStatement)stmt).setDate(parameterIndex, x);
+	}
+
+	@Override
+	public void setTime(int parameterIndex, Time x) throws SQLException {
+		((PreparedStatement)stmt).setTime(parameterIndex, x);
+	}
+
+	@Override
+	public void setTimestamp(int parameterIndex, Timestamp x) throws SQLException {
+		((PreparedStatement)stmt).setTimestamp(parameterIndex, x);
+	}
+
+	@Override
+	public void setAsciiStream(int parameterIndex, InputStream x, int length) throws SQLException {
+		((PreparedStatement)stmt).setAsciiStream(parameterIndex, x, length);
+	}
+
+	@SuppressWarnings("deprecation")
+	@Override
+	public void setUnicodeStream(int parameterIndex, InputStream x, int length) throws SQLException {
+		((PreparedStatement)stmt).setUnicodeStream(parameterIndex, x, length);
+	}
+
+	@Override
+	public void setBinaryStream(int parameterIndex, InputStream x, int length) throws SQLException {
+		((PreparedStatement)stmt).setBinaryStream(parameterIndex, x, length);
+	}
+
+	@Override
+	public void clearParameters() throws SQLException {
+		((PreparedStatement)stmt).clearParameters();
+	}
+
+	@Override
+	public void setObject(int parameterIndex, Object x, int targetSqlType) throws SQLException {
+		((PreparedStatement)stmt).setObject(parameterIndex, x, targetSqlType);
+	}
+
+	@Override
+	public void setObject(int parameterIndex, Object x) throws SQLException {
+		((PreparedStatement)stmt).setObject(parameterIndex, x);
+	}
+
+	@Override
+	public boolean execute() throws SQLException {
+		logger.debug(EELFLoggerDelegate.applicationLogger,"execute: "+sql);
+		boolean b = false;
+		try {
+			mgr.preStatementHook(sql);
+			b = ((PreparedStatement)stmt).execute();
+			mgr.postStatementHook(sql);
+			synchronizeTables(sql);
+		} catch (Exception e) {
+			e.printStackTrace();
+			String nm = e.getClass().getName();
+			// Note: this seems to be the only call Camunda uses, so it is the only one I am fixing for now.
+			boolean ignore = nm.startsWith(DATASTAX_PREFIX);
+//			ignore |= (nm.startsWith("org.h2.jdbc.JdbcSQLException") && e.getMessage().contains("already exists"));
+			if (ignore) {
+				logger.warn("execute: exception (IGNORED) "+nm);
+			} else {
+				logger.error(EELFLoggerDelegate.errorLogger,"execute: exception "+nm);
+				throw e;
+			}
+		}
+		return b;
+	}
+
+	@Override
+	public void addBatch() throws SQLException {
+		((PreparedStatement)stmt).addBatch();
+	}
+
+	@Override
+	public void setCharacterStream(int parameterIndex, Reader reader, int length) throws SQLException {
+		((PreparedStatement)stmt).setCharacterStream(parameterIndex, reader, length);
+	}
+
+	@Override
+	public void setRef(int parameterIndex, Ref x) throws SQLException {
+		((PreparedStatement)stmt).setRef(parameterIndex, x);
+	}
+
+	@Override
+	public void setBlob(int parameterIndex, Blob x) throws SQLException {
+		((PreparedStatement)stmt).setBlob(parameterIndex, x);
+	}
+
+	@Override
+	public void setClob(int parameterIndex, Clob x) throws SQLException {
+		((PreparedStatement)stmt).setClob(parameterIndex, x);
+	}
+
+	@Override
+	public void setArray(int parameterIndex, Array x) throws SQLException {
+		((PreparedStatement)stmt).setArray(parameterIndex, x);
+	}
+
+	@Override
+	public ResultSetMetaData getMetaData() throws SQLException {
+		return ((PreparedStatement)stmt).getMetaData();
+	}
+
+	@Override
+	public void setDate(int parameterIndex, Date x, Calendar cal) throws SQLException {
+		((PreparedStatement)stmt).setDate(parameterIndex, x, cal);
+	}
+
+	@Override
+	public void setTime(int parameterIndex, Time x, Calendar cal) throws SQLException {
+		((PreparedStatement)stmt).setTime(parameterIndex, x, cal);
+	}
+
+	@Override
+	public void setTimestamp(int parameterIndex, Timestamp x, Calendar cal) throws SQLException {
+		((CallableStatement)stmt).setTimestamp(parameterIndex, x, cal);
+	}
+
+	@Override
+	public void setNull(int parameterIndex, int sqlType, String typeName) throws SQLException {
+		((CallableStatement)stmt).setNull(parameterIndex, sqlType, typeName);
+	}
+
+	@Override
+	public void setURL(int parameterIndex, URL x) throws SQLException {
+		((CallableStatement)stmt).setURL(parameterIndex, x);
+	}
+
+	@Override
+	public ParameterMetaData getParameterMetaData() throws SQLException {
+		return ((CallableStatement)stmt).getParameterMetaData();
+	}
+
+	@Override
+	public void setRowId(int parameterIndex, RowId x) throws SQLException {
+		((CallableStatement)stmt).setRowId(parameterIndex, x);
+	}
+
+	@Override
+	public void setNString(int parameterIndex, String value) throws SQLException {
+		((CallableStatement)stmt).setNString(parameterIndex, value);
+	}
+
+	@Override
+	public void setNCharacterStream(int parameterIndex, Reader value, long length) throws SQLException {
+		((CallableStatement)stmt).setNCharacterStream(parameterIndex, value, length);
+	}
+
+	@Override
+	public void setNClob(int parameterIndex, NClob value) throws SQLException {
+		((CallableStatement)stmt).setNClob(parameterIndex, value);
+	}
+
+	@Override
+	public void setClob(int parameterIndex, Reader reader, long length) throws SQLException {
+		((CallableStatement)stmt).setClob(parameterIndex, reader, length);
+	}
+
+	@Override
+	public void setBlob(int parameterIndex, InputStream inputStream, long length) throws SQLException {
+		((CallableStatement)stmt).setBlob(parameterIndex, inputStream, length);
+	}
+
+	@Override
+	public void setNClob(int parameterIndex, Reader reader, long length) throws SQLException {
+		((CallableStatement)stmt).setNClob(parameterIndex, reader, length);
+	}
+
+	@Override
+	public void setSQLXML(int parameterIndex, SQLXML xmlObject) throws SQLException {
+		((CallableStatement)stmt).setSQLXML(parameterIndex, xmlObject);
+	}
+
+	@Override
+	public void setObject(int parameterIndex, Object x, int targetSqlType, int scaleOrLength) throws SQLException {
+		((CallableStatement)stmt).setObject(parameterIndex, x, targetSqlType, scaleOrLength);
+	}
+
+	@Override
+	public void setAsciiStream(int parameterIndex, InputStream x, long length) throws SQLException {
+		((CallableStatement)stmt).setAsciiStream(parameterIndex, x, length);
+	}
+
+	@Override
+	public void setBinaryStream(int parameterIndex, InputStream x, long length) throws SQLException {
+		((CallableStatement)stmt).setBinaryStream(parameterIndex, x, length);
+	}
+
+	@Override
+	public void setCharacterStream(int parameterIndex, Reader reader, long length) throws SQLException {
+		((CallableStatement)stmt).setCharacterStream(parameterIndex, reader, length);
+	}
+
+	@Override
+	public void setAsciiStream(int parameterIndex, InputStream x) throws SQLException {
+		((CallableStatement)stmt).setAsciiStream(parameterIndex, x);
+	}
+
+	@Override
+	public void setBinaryStream(int parameterIndex, InputStream x) throws SQLException {
+		((CallableStatement)stmt).setBinaryStream(parameterIndex, x);
+	}
+
+	@Override
+	public void setCharacterStream(int parameterIndex, Reader reader) throws SQLException {
+		((CallableStatement)stmt).setCharacterStream(parameterIndex, reader);
+	}
+
+	@Override
+	public void setNCharacterStream(int parameterIndex, Reader value) throws SQLException {
+		((CallableStatement)stmt).setNCharacterStream(parameterIndex, value);
+	}
+
+	@Override
+	public void setClob(int parameterIndex, Reader reader) throws SQLException {
+		((CallableStatement)stmt).setClob(parameterIndex, reader);
+	}
+
+	@Override
+	public void setBlob(int parameterIndex, InputStream inputStream) throws SQLException {
+		((CallableStatement)stmt).setBlob(parameterIndex, inputStream);
+	}
+
+	@Override
+	public void setNClob(int parameterIndex, Reader reader) throws SQLException {
+		((CallableStatement)stmt).setNClob(parameterIndex, reader);
+	}
+	
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/MdbcServer.java b/mdbc-server/src/main/java/org/onap/music/mdbc/MdbcServer.java
new file mode 100644
index 0000000..d4c0933
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/MdbcServer.java
@@ -0,0 +1,164 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc;
+
+import org.onap.music.mdbc.configurations.NodeConfiguration;
+import org.apache.calcite.avatica.remote.Driver.Serialization;
+import org.apache.calcite.avatica.remote.LocalService;
+import org.apache.calcite.avatica.server.HttpServer;
+import org.apache.calcite.avatica.util.Unsafe;
+
+import org.onap.music.logging.EELFLoggerDelegate;
+import com.beust.jcommander.IStringConverter;
+import com.beust.jcommander.JCommander;
+import com.beust.jcommander.Parameter;
+
+import java.util.Locale;
+import java.util.Properties;
+
+public class MdbcServer {
+  public static final EELFLoggerDelegate LOG = EELFLoggerDelegate.getLogger(MdbcStatement.class);
+
+  @Parameter(names = { "-c", "--configuration" }, required = true,
+      description = "This is the file that contains the ranges that are assigned to this MDBC server")
+  private String configurationFile;
+
+  @Parameter(names = { "-u", "--url" }, required = true,
+      description = "JDBC driver url for the server")
+  private String url;
+
+  @Parameter(names = { "-p", "--port" }, required = true,
+      description = "Port the server should bind")
+  private int port;
+
+  @Parameter(names = { "-s", "--user" }, required = true,
+      description = "Mysql usr")
+  private String user;
+
+  @Parameter(names = { "-a", "--pass" }, required = true,
+      description = "Mysql password")
+  private String password;
+
+  final private Serialization serialization = Serialization.PROTOBUF;
+
+  @Parameter(names = { "-h", "-help", "--help" }, help = true,
+      description = "Print the help message")
+  private boolean help = false;
+
+  private NodeConfiguration config;
+  private HttpServer server;
+
+  public void start() {
+    if (null != server) {
+      LOG.error("The server was already started");
+      Unsafe.systemExit(ExitCodes.ALREADY_STARTED.ordinal());
+      return;
+    }
+
+    try {
+    	config = NodeConfiguration.readJsonFromFile(configurationFile);
+    	//\TODO Add configuration file with Server Info
+    	Properties connectionProps = new Properties();
+    	connectionProps.put("user", user);
+    	connectionProps.put("password", password);
+    	MdbcServerLogic meta = new MdbcServerLogic(url,connectionProps,config);
+    	LocalService service = new LocalService(meta);
+
+    	// Construct the server
+    	this.server = new HttpServer.Builder<>()
+    			.withHandler(service, serialization)
+    			.withPort(port)
+    			.build();
+
+    	// Then start it
+    	server.start();
+
+    	LOG.info("Started Avatica server on port {} with serialization {}", server.getPort(),
+    			serialization);
+    } catch (Exception e) {
+    	LOG.error("Failed to start Avatica server", e);
+    	Unsafe.systemExit(ExitCodes.START_FAILED.ordinal());
+    }
+  }
+
+  public void stop() {
+	  if (null != server) {
+		  server.stop();
+		  server = null;
+	  }
+  }
+
+  public void join() throws InterruptedException {
+	  server.join();
+  }
+
+  public static void main(String[] args) {
+	  final MdbcServer server = new MdbcServer();
+	  @SuppressWarnings("deprecation")
+	  JCommander jc = new JCommander(server, args);
+	  if (server.help) {
+		  jc.usage();
+		  Unsafe.systemExit(ExitCodes.USAGE.ordinal());
+		  return;
+	  }
+
+	  server.start();
+
+	  // Try to clean up when the server is stopped.
+	  Runtime.getRuntime().addShutdownHook(
+			  new Thread(new Runnable() {
+				  @Override public void run() {
+					  LOG.info("Stopping server");
+					  server.stop();
+					  LOG.info("Server stopped");
+				  }
+			  }));
+
+	  try {
+		  server.join();
+	  } catch (InterruptedException e) {
+		  // Reset interruption
+		  Thread.currentThread().interrupt();
+		  // And exit now.
+		  return;
+	  }
+  }
+
+  /**
+   * Converter from String to Serialization. Must be public for JCommander.
+   */
+  public static class SerializationConverter implements IStringConverter<Serialization> {
+	  @Override public Serialization convert(String value) {
+		  return Serialization.valueOf(value.toUpperCase(Locale.ROOT));
+	  }
+  }
+
+  /**
+   * Codes for exit conditions
+   */
+  private enum ExitCodes {
+	  NORMAL,
+	  ALREADY_STARTED, // 1
+	  START_FAILED,    // 2
+	  USAGE;           // 3
+  }
+}
+
+// End StandaloneServer.java
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/MdbcServerLogic.java b/mdbc-server/src/main/java/org/onap/music/mdbc/MdbcServerLogic.java
new file mode 100644
index 0000000..33c5dbb
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/MdbcServerLogic.java
@@ -0,0 +1,331 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc;
+
+import java.sql.Connection;
+import java.sql.SQLException;
+import java.util.List;
+import java.util.Map;
+import java.util.Properties;
+import java.util.concurrent.ConcurrentMap;
+import java.util.concurrent.TimeUnit;
+
+import org.onap.music.exceptions.MDBCServiceException;
+import org.onap.music.mdbc.configurations.NodeConfiguration;
+import com.google.common.cache.Cache;
+import com.google.common.cache.CacheBuilder;
+import com.google.common.cache.RemovalListener;
+import com.google.common.cache.RemovalNotification;
+import org.apache.calcite.avatica.MissingResultsException;
+import org.apache.calcite.avatica.NoSuchStatementException;
+import org.apache.calcite.avatica.jdbc.JdbcMeta;
+import org.apache.calcite.avatica.remote.TypedValue;
+
+import org.onap.music.logging.EELFLoggerDelegate;
+import org.onap.music.logging.format.AppMessages;
+import org.onap.music.logging.format.ErrorSeverity;
+import org.onap.music.logging.format.ErrorTypes;
+
+public class MdbcServerLogic extends JdbcMeta{
+
+	private static EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(MdbcServerLogic.class);
+
+	StateManager manager;
+	DatabasePartition ranges;
+	String name;
+	String sqlDatabase;
+
+	//TODO: Delete this properties after debugging
+	private final Properties info;
+	private final Cache<String, Connection> connectionCache;
+
+	public MdbcServerLogic(String Url, Properties info,NodeConfiguration config) throws SQLException, MDBCServiceException {
+		super(Url,info);
+		this.ranges = config.partition;
+		this.name = config.nodeName;
+		this.sqlDatabase = config.sqlDatabaseName;
+		this.manager = new StateManager(Url,info,this.ranges,this.sqlDatabase);
+		this.info = info;
+        int concurrencyLevel = Integer.parseInt(
+                info.getProperty(ConnectionCacheSettings.CONCURRENCY_LEVEL.key(),
+                        ConnectionCacheSettings.CONCURRENCY_LEVEL.defaultValue()));
+        int initialCapacity = Integer.parseInt(
+                info.getProperty(ConnectionCacheSettings.INITIAL_CAPACITY.key(),
+                        ConnectionCacheSettings.INITIAL_CAPACITY.defaultValue()));
+        long maxCapacity = Long.parseLong(
+                info.getProperty(ConnectionCacheSettings.MAX_CAPACITY.key(),
+                        ConnectionCacheSettings.MAX_CAPACITY.defaultValue()));
+        long connectionExpiryDuration = Long.parseLong(
+                info.getProperty(ConnectionCacheSettings.EXPIRY_DURATION.key(),
+                        ConnectionCacheSettings.EXPIRY_DURATION.defaultValue()));
+        TimeUnit connectionExpiryUnit = TimeUnit.valueOf(
+                info.getProperty(ConnectionCacheSettings.EXPIRY_UNIT.key(),
+                        ConnectionCacheSettings.EXPIRY_UNIT.defaultValue()));
+        this.connectionCache = CacheBuilder.newBuilder()
+                .concurrencyLevel(concurrencyLevel)
+                .initialCapacity(initialCapacity)
+                .maximumSize(maxCapacity)
+                .expireAfterAccess(connectionExpiryDuration, connectionExpiryUnit)
+                .removalListener(new ConnectionExpiryHandler())
+                .build();
+	}
+	
+	@Override
+    protected Connection getConnection(String id) throws SQLException {
+        if (id == null) {
+            throw new NullPointerException("Connection id is null");
+        }
+        //\TODO: don't use connectionCache, use this.manager internal state
+        Connection conn = connectionCache.getIfPresent(id);
+        if (conn == null) {
+            this.manager.CloseConnection(id);
+            logger.error(EELFLoggerDelegate.errorLogger,"Connection not found: invalid id, closed, or expired: "
+                    + id);
+            throw new RuntimeException(" Connection not found: invalid id, closed, or expired: " + id);
+        }
+        return conn;
+    }
+
+	@Override
+	public void openConnection(ConnectionHandle ch, Map<String, String> information) {
+        Properties fullInfo = new Properties();
+        fullInfo.putAll(this.info);
+        if (information != null) {
+            fullInfo.putAll(information);
+		}
+
+        final ConcurrentMap<String, Connection> cacheAsMap = this.connectionCache.asMap();
+        if (cacheAsMap.containsKey(ch.id)) {
+            throw new RuntimeException("Connection already exists: " + ch.id);
+        }
+        // Avoid global synchronization of connection opening
+        try {
+            this.manager.OpenConnection(ch.id, info);
+            Connection conn = this.manager.GetConnection(ch.id);
+            if(conn == null) {
+                logger.error(EELFLoggerDelegate.errorLogger, "Connection created was null");
+                throw new RuntimeException("Connection created was null for connection: " + ch.id);
+            }
+            Connection loadedConn = cacheAsMap.putIfAbsent(ch.id, conn);
+            logger.info("connection created with id {}", ch.id);
+            // Race condition: someone beat us to storing the connection in the cache.
+            if (loadedConn != null) {
+                //\TODO check if we added an additional race condition for this
+                this.manager.CloseConnection(ch.id);
+                conn.close();
+                throw new RuntimeException("Connection already exists: " + ch.id);
+            }
+        } catch (SQLException e) {
+            logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(), AppMessages.QUERYERROR, ErrorTypes.QUERYERROR, ErrorSeverity.CRITICAL);
+            throw new RuntimeException(e);
+        }
+    }
+
+	@Override
+	public void closeConnection(ConnectionHandle ch) {
+	    //\TODO use state connection instead
+        Connection conn = connectionCache.getIfPresent(ch.id);
+        if (conn == null) {
+            logger.debug("client requested close unknown connection {}", ch);
+            return;
+        }
+        logger.trace("closing connection {}", ch);
+        try {
+            conn.close();
+        } catch (SQLException e) {
+            logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(), AppMessages.QUERYERROR, ErrorTypes.QUERYERROR, ErrorSeverity.CRITICAL);
+            throw new RuntimeException(e.getMessage());
+        } finally {
+            connectionCache.invalidate(ch.id);
+            this.manager.CloseConnection(ch.id);
+            logger.info("connection closed with id {}", ch.id);
+        }
+	}
+
+    @Override
+    public void commit(ConnectionHandle ch) {
+        try {
+            super.commit(ch);
+            logger.debug("connection commited with id {}", ch.id);
+        } catch (Exception err ) {
+            logger.error(EELFLoggerDelegate.errorLogger, err.getMessage(), AppMessages.QUERYERROR, ErrorTypes.QUERYERROR, ErrorSeverity.CRITICAL);
+            throw(err);
+        }
+    }
+	
+	//\TODO All the following functions can be deleted
+	// Added for two reasons: debugging and logging
+	@Override
+	public StatementHandle prepare(ConnectionHandle ch, String sql, long maxRowCount) {
+		StatementHandle h;
+		try {
+			h = super.prepare(ch, sql, maxRowCount);
+			logger.debug("prepared statement {}", h);
+		} catch (Exception e ) {
+			logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(), AppMessages.QUERYERROR, ErrorTypes.QUERYERROR, ErrorSeverity.CRITICAL);
+			throw(e);
+		}
+		return h;
+	}
+
+	@Override
+	public ExecuteResult prepareAndExecute(StatementHandle h, String sql, long maxRowCount, int maxRowsInFirstFrame,
+			PrepareCallback callback) throws NoSuchStatementException {
+		ExecuteResult e;
+		try {
+			e = super.prepareAndExecute(h, sql, maxRowCount,maxRowsInFirstFrame,callback);
+			logger.debug("prepare and execute statement {}", h);
+		} catch (Exception err ) {
+			logger.error(EELFLoggerDelegate.errorLogger, err.getMessage(), AppMessages.QUERYERROR, ErrorTypes.QUERYERROR, ErrorSeverity.CRITICAL);
+			throw(err);
+		}
+		return e;
+	}
+
+	@Override
+	public ExecuteBatchResult prepareAndExecuteBatch(StatementHandle h, List<String> sqlCommands)
+			throws NoSuchStatementException {
+		ExecuteBatchResult e;
+		try {
+			e = super.prepareAndExecuteBatch(h, sqlCommands);
+			logger.debug("prepare and execute batch statement {}", h);
+		} catch (Exception err ) {
+			logger.error(EELFLoggerDelegate.errorLogger, err.getMessage(), AppMessages.QUERYERROR, ErrorTypes.QUERYERROR, ErrorSeverity.CRITICAL);
+			throw(err);
+		}
+		return e;
+	}
+
+	@Override
+	public ExecuteBatchResult executeBatch(StatementHandle h, List<List<TypedValue>> parameterValues)
+			throws NoSuchStatementException {
+		ExecuteBatchResult e;
+		try {
+			e = super.executeBatch(h, parameterValues);
+			logger.debug("execute batch statement {}", h);
+		} catch (Exception err ) {
+			logger.error(EELFLoggerDelegate.errorLogger, err.getMessage(), AppMessages.QUERYERROR, ErrorTypes.QUERYERROR, ErrorSeverity.CRITICAL);
+			throw(err);
+		}
+		return e;
+	}
+
+	@Override
+	public Frame fetch(StatementHandle h, long offset, int fetchMaxRowCount)
+			throws NoSuchStatementException, MissingResultsException {
+		Frame f;
+		try {
+			f = super.fetch(h, offset, fetchMaxRowCount);
+			logger.debug("fetch statement {}", h);
+		} catch (Exception err ) {
+			logger.error(EELFLoggerDelegate.errorLogger, err.getMessage(), AppMessages.QUERYERROR, ErrorTypes.QUERYERROR, ErrorSeverity.CRITICAL);
+			throw(err);
+		}
+		return f;
+	}
+
+	@Override
+	public ExecuteResult execute(StatementHandle h, List<TypedValue> parameterValues, long maxRowCount)
+			throws NoSuchStatementException {
+		ExecuteResult e;
+		try {
+			e = super.execute(h, parameterValues, maxRowCount);
+			logger.debug("fetch statement {}", h);
+		} catch (Exception err ) {
+			logger.error(EELFLoggerDelegate.errorLogger, err.getMessage(), AppMessages.QUERYERROR, ErrorTypes.QUERYERROR, ErrorSeverity.CRITICAL);
+			throw(err);
+		}
+		return e;
+	}
+
+	@Override
+	public ExecuteResult execute(StatementHandle h, List<TypedValue> parameterValues, int maxRowsInFirstFrame)
+			throws NoSuchStatementException {
+		ExecuteResult e;
+		try {
+			e = super.execute(h, parameterValues, maxRowsInFirstFrame);
+			logger.debug("fetch statement {}", h);
+		} catch (Exception err ) {
+			logger.error(EELFLoggerDelegate.errorLogger, err.getMessage(), AppMessages.QUERYERROR, ErrorTypes.QUERYERROR, ErrorSeverity.CRITICAL);
+			throw(err);
+		}
+		return e;
+	}
+
+	@Override
+	public StatementHandle createStatement(ConnectionHandle ch) {
+		StatementHandle h;
+		try {
+			h = super.createStatement(ch);
+			logger.debug("create statement {}", h);
+		} catch (Exception err ) {
+			logger.error(EELFLoggerDelegate.errorLogger, err.getMessage(), AppMessages.QUERYERROR, ErrorTypes.QUERYERROR, ErrorSeverity.CRITICAL);
+			throw(err);
+		}
+		return h;
+	}
+
+	@Override
+	public void closeStatement(StatementHandle h) {
+		try {
+			super.closeStatement(h);
+			logger.debug("statement closed {}", h);
+		} catch (Exception err ) {
+			logger.error(EELFLoggerDelegate.errorLogger, err.getMessage(), AppMessages.QUERYERROR, ErrorTypes.QUERYERROR, ErrorSeverity.CRITICAL);
+			throw(err);
+		}		
+	}
+
+
+
+
+
+
+
+	@Override
+	public void rollback(ConnectionHandle ch) {
+		try {
+			super.rollback(ch);
+			logger.debug("connection rollback with id {}", ch.id);
+		} catch (Exception err ) {
+			logger.error(EELFLoggerDelegate.errorLogger, err.getMessage(), AppMessages.QUERYERROR, ErrorTypes.QUERYERROR, ErrorSeverity.CRITICAL);
+			throw(err);
+		}				
+	}
+
+	private class ConnectionExpiryHandler
+            implements RemovalListener<String, Connection> {
+
+        public void onRemoval(RemovalNotification<String, Connection> notification) {
+            String connectionId = notification.getKey();
+            Connection doomed = notification.getValue();
+            logger.debug("Expiring connection {} because {}", connectionId, notification.getCause());
+            try {
+                if (doomed != null) {
+                    doomed.close();
+                }
+            } catch (Throwable t) {
+                logger.warn("Exception thrown while expiring connection {}", connectionId, t);
+            }
+        }
+    }
+}
+
+
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/MdbcStatement.java b/mdbc-server/src/main/java/org/onap/music/mdbc/MdbcStatement.java
new file mode 100644
index 0000000..320531f
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/MdbcStatement.java
@@ -0,0 +1,435 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc;
+
+import java.sql.Connection;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.SQLWarning;
+import java.sql.Statement;
+
+import org.onap.music.exceptions.QueryException;
+import org.onap.music.logging.EELFLoggerDelegate;
+import org.onap.music.logging.format.AppMessages;
+import org.onap.music.logging.format.ErrorSeverity;
+import org.onap.music.logging.format.ErrorTypes;
+
+/**
+ * ProxyStatement is a proxy Statement that front ends Statements from the underlying JDBC driver.  It passes all operations through,
+ * and invokes the MusicSqlManager when there is the possibility that database tables have been created or dropped.
+ *
+ * @author Robert Eby
+ */
+public class MdbcStatement implements Statement {
+	private EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(MdbcStatement.class);
+	private static final String DATASTAX_PREFIX = "com.datastax.driver";
+
+	final Statement stmt;		// the Statement that we are proxying
+	final MusicSqlManager mgr;
+	//\TODO We may need to all pass the connection object to support autocommit
+
+	public MdbcStatement(Statement s, MusicSqlManager m) {
+		this.stmt = s;
+		this.mgr = m;
+	}
+
+	public MdbcStatement(Statement stmt, String sql, MusicSqlManager mgr) {
+		//\TODO why there is a constructor with a sql parameter in a not PreparedStatement
+		this.stmt = stmt;
+		this.mgr = mgr;
+	}
+	
+	@Override
+	public <T> T unwrap(Class<T> iface) throws SQLException {
+		logger.error(EELFLoggerDelegate.errorLogger, "proxystatement unwrap: " + iface.getName());
+		return stmt.unwrap(iface);
+	}
+
+	@Override
+	public boolean isWrapperFor(Class<?> iface) throws SQLException {
+		logger.error(EELFLoggerDelegate.errorLogger, "proxystatement isWrapperFor: " + iface.getName());
+		return stmt.isWrapperFor(iface);
+	}
+
+	@Override
+	public ResultSet executeQuery(String sql) throws SQLException {
+		logger.debug(EELFLoggerDelegate.applicationLogger,"executeQuery: "+sql);
+		ResultSet r = null;
+		try {
+			mgr.preStatementHook(sql);
+			r = stmt.executeQuery(sql);
+			mgr.postStatementHook(sql);
+			synchronizeTables(sql);
+		} catch (Exception e) {
+			String nm = e.getClass().getName();
+			logger.error(EELFLoggerDelegate.errorLogger, "executeQuery: exception "+nm);
+			if (!nm.startsWith(DATASTAX_PREFIX))
+				throw e;
+		}
+		return r;
+	}
+
+	@Override
+	public int executeUpdate(String sql) throws SQLException {
+		logger.debug(EELFLoggerDelegate.applicationLogger,"executeUpdate: "+sql);
+		
+		int n = 0;
+		try {
+			mgr.preStatementHook(sql);
+			n = stmt.executeUpdate(sql);
+			mgr.postStatementHook(sql);
+			synchronizeTables(sql);
+		} catch (Exception e) {
+			String nm = e.getClass().getName();
+			logger.error(EELFLoggerDelegate.errorLogger, "executeUpdate: exception "+nm+" "+e);
+			if (!nm.startsWith(DATASTAX_PREFIX))
+				throw e;
+		}
+		return n;
+	}
+
+	@Override
+	public void close() throws SQLException {
+		logger.debug(EELFLoggerDelegate.applicationLogger,"Statement close: ");
+		stmt.close();
+	}
+
+	@Override
+	public int getMaxFieldSize() throws SQLException {
+		logger.debug(EELFLoggerDelegate.applicationLogger,"getMaxFieldSize");
+		return stmt.getMaxFieldSize();
+	}
+
+	@Override
+	public void setMaxFieldSize(int max) throws SQLException {
+		stmt.setMaxFieldSize(max);
+	}
+
+	@Override
+	public int getMaxRows() throws SQLException {
+		return stmt.getMaxRows();
+	}
+
+	@Override
+	public void setMaxRows(int max) throws SQLException {
+		stmt.setMaxRows(max);
+	}
+
+	@Override
+	public void setEscapeProcessing(boolean enable) throws SQLException {
+		stmt.setEscapeProcessing(enable);
+	}
+
+	@Override
+	public int getQueryTimeout() throws SQLException {
+		return stmt.getQueryTimeout();
+	}
+
+	@Override
+	public void setQueryTimeout(int seconds) throws SQLException {
+		//\TODO: we also need to implement a higher level timeout in MDBC 
+		logger.debug(EELFLoggerDelegate.applicationLogger,"setQueryTimeout seconds "+ seconds);
+		stmt.setQueryTimeout(seconds);
+	}
+
+	@Override
+	public void cancel() throws SQLException {
+		stmt.cancel();
+	}
+
+	@Override
+	public SQLWarning getWarnings() throws SQLException {
+		return stmt.getWarnings();
+	}
+
+	@Override
+	public void clearWarnings() throws SQLException {
+		stmt.clearWarnings();
+	}
+
+	@Override
+	public void setCursorName(String name) throws SQLException {
+		stmt.setCursorName(name);
+	}
+
+	@Override
+	public boolean execute(String sql) throws SQLException {
+		logger.debug(EELFLoggerDelegate.applicationLogger,"execute: "+sql);
+		boolean b = false;
+		//\TODO Add the result of the postStatementHook to b
+		try {
+			mgr.preStatementHook(sql);
+			b = stmt.execute(sql);
+			mgr.postStatementHook(sql);
+			synchronizeTables(sql);
+		} catch (Exception e) {
+			String nm = e.getClass().getName();
+			logger.error(EELFLoggerDelegate.errorLogger, "execute: exception "+nm+" "+e);
+			// Note: this seems to be the only call Camunda uses, so it is the only one I am fixing for now.
+			boolean ignore = nm.startsWith(DATASTAX_PREFIX);
+//			ignore |= (nm.startsWith("org.h2.jdbc.JdbcSQLException") && e.getMessage().contains("already exists"));
+			if (ignore) {
+				logger.warn("execute: exception (IGNORED) "+nm);
+			} else {
+				logger.error(EELFLoggerDelegate.errorLogger, " Exception "+nm+" "+e);
+				throw e;
+			}
+		}
+		return b;
+	}
+
+	@Override
+	public ResultSet getResultSet() throws SQLException {
+		return stmt.getResultSet();
+	}
+
+	@Override
+	public int getUpdateCount() throws SQLException {
+		return stmt.getUpdateCount();
+	}
+
+	@Override
+	public boolean getMoreResults() throws SQLException {
+		return stmt.getMoreResults();
+	}
+
+	@Override
+	public void setFetchDirection(int direction) throws SQLException {
+		stmt.setFetchDirection(direction);
+	}
+
+	@Override
+	public int getFetchDirection() throws SQLException {
+		return stmt.getFetchDirection();
+	}
+
+	@Override
+	public void setFetchSize(int rows) throws SQLException {
+		stmt.setFetchSize(rows);
+	}
+
+	@Override
+	public int getFetchSize() throws SQLException {
+		return stmt.getFetchSize();
+	}
+
+	@Override
+	public int getResultSetConcurrency() throws SQLException {
+		return stmt.getResultSetConcurrency();
+	}
+
+	@Override
+	public int getResultSetType() throws SQLException {
+		return stmt.getResultSetType();
+	}
+
+	@Override
+	public void addBatch(String sql) throws SQLException {
+		stmt.addBatch(sql);
+	}
+
+	@Override
+	public void clearBatch() throws SQLException {
+		stmt.clearBatch();
+	}
+
+	@Override
+	public int[] executeBatch() throws SQLException {
+		logger.debug(EELFLoggerDelegate.applicationLogger,"executeBatch: ");
+		int[] n = null;
+		try {
+			logger.debug(EELFLoggerDelegate.applicationLogger,"executeBatch() is not supported by MDBC; your results may be incorrect as a result.");
+			n = stmt.executeBatch();
+			synchronizeTables(null);
+		} catch (Exception e) {
+			String nm = e.getClass().getName();
+			logger.error(EELFLoggerDelegate.errorLogger,"executeBatch: exception "+nm);
+			if (!nm.startsWith(DATASTAX_PREFIX))
+				throw e;
+		}
+		return n;
+	}
+
+	@Override
+	public Connection getConnection() throws SQLException {
+		return stmt.getConnection();
+	}
+
+	@Override
+	public boolean getMoreResults(int current) throws SQLException {
+		return stmt.getMoreResults(current);
+	}
+
+	@Override
+	public ResultSet getGeneratedKeys() throws SQLException {
+		return stmt.getGeneratedKeys();
+	}
+
+	@Override
+	public int executeUpdate(String sql, int autoGeneratedKeys) throws SQLException {
+		logger.debug(EELFLoggerDelegate.applicationLogger,"executeUpdate: "+sql);
+		int n = 0;
+		try {
+			mgr.preStatementHook(sql);
+			n = stmt.executeUpdate(sql, autoGeneratedKeys);
+			mgr.postStatementHook(sql);
+			synchronizeTables(sql);
+		} catch (Exception e) {
+			String nm = e.getClass().getName();
+			logger.error(EELFLoggerDelegate.errorLogger,"executeUpdate: exception "+nm);
+			if (!nm.startsWith(DATASTAX_PREFIX))
+				throw e;
+		}
+		return n;
+	}
+
+	@Override
+	public int executeUpdate(String sql, int[] columnIndexes) throws SQLException {
+		logger.debug(EELFLoggerDelegate.applicationLogger,"executeUpdate: "+sql);
+		int n = 0;
+		try {
+			mgr.preStatementHook(sql);
+			n = stmt.executeUpdate(sql, columnIndexes);
+			mgr.postStatementHook(sql);
+			synchronizeTables(sql);
+		} catch (Exception e) {
+			String nm = e.getClass().getName();
+			logger.error(EELFLoggerDelegate.errorLogger,"executeUpdate: exception "+nm);
+			if (!nm.startsWith(DATASTAX_PREFIX))
+				throw e;
+		}
+		return n;
+	}
+
+	@Override
+	public int executeUpdate(String sql, String[] columnNames) throws SQLException {
+		logger.debug(EELFLoggerDelegate.applicationLogger,"executeUpdate: "+sql);
+		int n = 0;
+		try {
+			mgr.preStatementHook(sql);
+			n = stmt.executeUpdate(sql, columnNames);
+			mgr.postStatementHook(sql);
+			synchronizeTables(sql);
+		} catch (Exception e) {
+			String nm = e.getClass().getName();
+			logger.error(EELFLoggerDelegate.errorLogger,"executeUpdate: exception "+nm);
+			if (!nm.startsWith(DATASTAX_PREFIX))
+				throw e;
+		}
+		return n;
+	}
+
+	@Override
+	public boolean execute(String sql, int autoGeneratedKeys) throws SQLException {
+		logger.debug(EELFLoggerDelegate.applicationLogger,"execute: "+sql);
+		boolean b = false;
+		try {
+			mgr.preStatementHook(sql);
+			b = stmt.execute(sql, autoGeneratedKeys);
+			mgr.postStatementHook(sql);
+			synchronizeTables(sql);
+		} catch (Exception e) {
+			String nm = e.getClass().getName();
+			logger.error(EELFLoggerDelegate.errorLogger,"execute: exception "+nm);
+			if (!nm.startsWith(DATASTAX_PREFIX))
+				throw e;
+		}
+		return b;
+	}
+
+	@Override
+	public boolean execute(String sql, int[] columnIndexes) throws SQLException {
+		logger.debug(EELFLoggerDelegate.applicationLogger,"execute: "+sql);
+		boolean b = false;
+		try {
+			mgr.preStatementHook(sql);
+			b = stmt.execute(sql, columnIndexes);
+			mgr.postStatementHook(sql);
+			synchronizeTables(sql);
+		} catch (Exception e) {
+			String nm = e.getClass().getName();
+			logger.error(EELFLoggerDelegate.errorLogger,"execute: exception "+nm);
+			if (!nm.startsWith(DATASTAX_PREFIX))
+				throw e;
+		}
+		return b;
+	}
+
+	@Override
+	public boolean execute(String sql, String[] columnNames) throws SQLException {
+		logger.debug(EELFLoggerDelegate.applicationLogger,"execute: "+sql);
+		//\TODO Idem to the other execute without columnNames
+		boolean b = false;
+		try {
+			mgr.preStatementHook(sql);
+			b = stmt.execute(sql, columnNames);
+			mgr.postStatementHook(sql);
+			synchronizeTables(sql);
+		} catch (Exception e) {
+			String nm = e.getClass().getName();
+			logger.error(EELFLoggerDelegate.errorLogger,"execute: exception "+nm);
+			if (!nm.startsWith(DATASTAX_PREFIX))
+				throw e;
+		}
+		return b;
+	}
+
+	@Override
+	public int getResultSetHoldability() throws SQLException {
+		return stmt.getResultSetHoldability();
+	}
+
+	@Override
+	public boolean isClosed() throws SQLException {
+		return stmt.isClosed();
+	}
+
+	@Override
+	public void setPoolable(boolean poolable) throws SQLException {
+		stmt.setPoolable(poolable);
+	}
+
+	@Override
+	public boolean isPoolable() throws SQLException {
+		return stmt.isPoolable();
+	}
+
+	@Override
+	public void closeOnCompletion() throws SQLException {
+		stmt.closeOnCompletion();
+	}
+
+	@Override
+	public boolean isCloseOnCompletion() throws SQLException {
+		return stmt.isCloseOnCompletion();
+	}
+	
+	protected void synchronizeTables(String sql)  {
+		if (sql == null || sql.trim().toLowerCase().startsWith("create")) {
+			if (mgr != null) {
+				try {
+					mgr.synchronizeTables();
+				} catch (QueryException e) {
+					logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(),AppMessages.UNKNOWNERROR, ErrorSeverity.CRITICAL, ErrorTypes.QUERYERROR);
+				}
+			}
+		}
+	}
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/MusicSqlManager.java b/mdbc-server/src/main/java/org/onap/music/mdbc/MusicSqlManager.java
new file mode 100755
index 0000000..50c307e
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/MusicSqlManager.java
@@ -0,0 +1,327 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc;
+
+import java.sql.Connection;
+import java.util.*;
+
+import org.json.JSONObject;
+
+import org.onap.music.mdbc.mixins.DBInterface;
+import org.onap.music.mdbc.mixins.MixinFactory;
+import org.onap.music.mdbc.mixins.MusicInterface;
+import org.onap.music.mdbc.mixins.Utils;
+import org.onap.music.mdbc.tables.StagingTable;
+import org.onap.music.mdbc.tables.TxCommitProgress;
+import org.onap.music.exceptions.MDBCServiceException;
+import org.onap.music.exceptions.QueryException;
+import org.onap.music.logging.*;
+import org.onap.music.logging.format.AppMessages;
+import org.onap.music.logging.format.ErrorSeverity;
+import org.onap.music.logging.format.ErrorTypes;
+
+/**
+* <p>
+* MUSIC SQL Manager - code that helps take data written to a SQL database and seamlessly integrates it
+* with <a href="https://github.com/att/music">MUSIC</a> that maintains data in a No-SQL data-store
+* (<a href="http://cassandra.apache.org/">Cassandra</a>) and protects access to it with a distributed
+* locking service (based on <a href="https://zookeeper.apache.org/">Zookeeper</a>).
+* </p>
+* <p>
+* This code will support transactions by taking note of the value of the autoCommit flag, and of calls
+* to <code>commit()</code> and <code>rollback()</code>.  These calls should be made by the user's JDBC
+* client.
+* </p>
+*
+* @author  Bharath Balasubramanian, Robert Eby
+*/
+public class MusicSqlManager {
+
+	private static EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(MusicSqlManager.class);
+	
+	private final DBInterface dbi;
+	private final MusicInterface mi;
+	private final Set<String> table_set;
+	private final HashMap<Range,StagingTable> transactionDigest;
+	private boolean autocommit;			// a copy of the autocommit flag from the JDBC Connection
+
+	/**
+	 * Build a MusicSqlManager for a DB connection.  This construct may only be called by getMusicSqlManager(),
+	 * which will ensure that only one MusicSqlManager is created per URL.
+	 * This is the location where the appropriate mixins to use for the MusicSqlManager should be determined.
+	 * They should be picked based upon the URL and the properties passed to this constructor.
+	 * <p>
+	 * At the present time, we only support the use of the H2Mixin (for access to a local H2 database),
+	 * with the CassandraMixin (for direct access to a Cassandra noSQL DB as the persistence layer).
+	 * </p>
+	 *
+	 * @param url the JDBC URL which was used to connection to the database
+	 * @param conn the actual connection to the database
+	 * @param info properties passed from the initial JDBC connect() call
+	 * @throws MDBCServiceException 
+	 */
+	 public MusicSqlManager(String url, Connection conn, Properties info, MusicInterface mi) throws MDBCServiceException {
+		try {
+			info.putAll(Utils.getMdbcProperties());
+			String mixinDb  = info.getProperty(Configuration.KEY_DB_MIXIN_NAME, Configuration.DB_MIXIN_DEFAULT);
+			this.dbi       = MixinFactory.createDBInterface(mixinDb, this, url, conn, info);
+			this.mi = mi;
+			this.table_set = Collections.synchronizedSet(new HashSet<String>());
+			this.autocommit = true;
+			this.transactionDigest = new HashMap<Range,StagingTable>();
+
+		}catch(Exception e) {
+			throw new MDBCServiceException(e.getMessage());
+		}
+	}
+
+	public void setAutoCommit(boolean b,String txId, TxCommitProgress progressKeeper, DatabasePartition partition) throws MDBCServiceException {
+		if (b != autocommit) {
+			autocommit = b;
+			logger.debug(EELFLoggerDelegate.applicationLogger,"autocommit changed to "+b);
+			if (b) {
+				// My reading is that turning autoCOmmit ON should automatically commit any outstanding transaction
+				if(txId == null || txId.isEmpty()) {
+					logger.error(EELFLoggerDelegate.errorLogger, "Connection ID is null",AppMessages.UNKNOWNERROR, ErrorSeverity.CRITICAL, ErrorTypes.QUERYERROR);
+					throw new MDBCServiceException("tx id is null");
+				}
+				commit(txId,progressKeeper,partition);
+			}
+		}
+	}
+
+	/**
+	 * Close this MusicSqlManager.
+	 */
+	public void close() {
+		if (dbi != null) {
+			dbi.close();
+		}
+	}
+
+	/**
+	 * Code to be run within the DB driver before a SQL statement is executed.  This is where tables
+	 * can be synchronized before a SELECT, for those databases that do not support SELECT triggers.
+	 * @param sql the SQL statement that is about to be executed
+	 */
+	public void preStatementHook(final String sql) {
+		dbi.preStatementHook(sql);
+	}
+	/**
+	 * Code to be run within the DB driver after a SQL statement has been executed.  This is where remote
+	 * statement actions can be copied back to Cassandra/MUSIC.
+	 * @param sql the SQL statement that was executed
+	 */
+	public void postStatementHook(final String sql) {
+		dbi.postStatementHook(sql,transactionDigest);
+	}
+	/**
+	 * Synchronize the list of tables in SQL with the list in MUSIC. This function should be called when the
+	 * proxy first starts, and whenever there is the possibility that tables were created or dropped.  It is synchronized
+	 * in order to prevent multiple threads from running this code in parallel.
+	 */
+	public synchronized void synchronizeTables() throws QueryException {
+			Set<String> set1 = dbi.getSQLTableSet();	// set of tables in the database
+			logger.debug(EELFLoggerDelegate.applicationLogger, "synchronizing tables:" + set1);
+			for (String tableName : set1) {
+				// This map will be filled in if this table was previously discovered
+				if (!table_set.contains(tableName) && !dbi.getReservedTblNames().contains(tableName)) {
+					logger.info(EELFLoggerDelegate.applicationLogger, "New table discovered: "+tableName);
+					try {
+						TableInfo ti = dbi.getTableInfo(tableName);
+						mi.initializeMusicForTable(ti,tableName);
+						//\TODO Verify if table info can be modify in the previous step, if not this step can be deleted
+						ti = dbi.getTableInfo(tableName);
+						mi.createDirtyRowTable(ti,tableName);
+						dbi.createSQLTriggers(tableName);
+						table_set.add(tableName);
+						synchronizeTableData(tableName);
+						logger.debug(EELFLoggerDelegate.applicationLogger, "synchronized tables:" +
+									table_set.size() + "/" + set1.size() + "tables uploaded");
+					} catch (Exception e) {
+						logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(),AppMessages.UNKNOWNERROR, ErrorSeverity.CRITICAL, ErrorTypes.QUERYERROR);
+						//logger.error(EELFLoggerDelegate.errorLogger, "Exception synchronizeTables: "+e);
+						throw new QueryException();
+					}
+				}
+			}
+
+//			Set<String> set2 = getMusicTableSet(music_ns);
+			// not working - fix later
+//			for (String tbl : set2) {
+//				if (!set1.contains(tbl)) {
+//					logger.debug("Old table dropped: "+tbl);
+//					dropSQLTriggers(tbl, conn);
+//					// ZZTODO drop camunda table ?
+//				}
+//			}
+	}
+
+	/**
+	 * On startup, copy dirty data from Cassandra to H2. May not be needed.
+	 * @param tableName 
+	 */
+	public void synchronizeTableData(String tableName) {
+		// TODO - copy MUSIC -> H2
+		dbi.synchronizeData(tableName);
+	}
+	/**
+	 * This method is called whenever there is a SELECT on a local SQL table, and should be called by the underlying databases
+	 * triggering mechanism.  It first checks the local dirty bits table to see if there are any keys in Cassandra whose value
+	 * has not yet been sent to SQL.  If there are, the appropriate values are copied from Cassandra to the local database.
+	 * Under normal execution, this function behaves as a NOP operation.
+	 * @param tableName This is the table on which the SELECT is being performed
+	 */
+	public void readDirtyRowsAndUpdateDb(String tableName) {
+		mi.readDirtyRowsAndUpdateDb(dbi,tableName);
+	}
+	
+	
+	
+	
+	/**
+	 * This method gets the primary key that the music interfaces uses by default.
+	 * If the front end uses a primary key, this will not match what is used in the MUSIC interface
+	 * @return
+	 */
+	public String getMusicDefaultPrimaryKeyName() {
+		return mi.getMusicDefaultPrimaryKeyName();
+	}
+	
+	/**
+	 * Asks music interface to provide the function to create a primary key
+	 * e.g. uuid(), 1, "unique_aksd419fjc"
+	 * @return
+	 */
+	public String generateUniqueKey() {
+		// 
+		return mi.generateUniqueKey();
+	}
+	
+	
+	/**
+	 * Perform a commit, as requested by the JDBC driver.  If any row updates have been delayed,
+	 * they are performed now and copied into MUSIC.
+	 * @throws MDBCServiceException 
+	 */
+	public synchronized void commit(String txId, TxCommitProgress progressKeeper, DatabasePartition partition) throws MDBCServiceException {
+		logger.debug(EELFLoggerDelegate.applicationLogger, " commit ");
+		// transaction was committed -- add all the updates into the REDO-Log in MUSIC
+		try {
+			mi.commitLog(dbi, partition, transactionDigest, txId, progressKeeper);
+		}catch(MDBCServiceException e) {
+			logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(), AppMessages.QUERYERROR, ErrorTypes.QUERYERROR, ErrorSeverity.CRITICAL);
+			throw e;
+		}
+	}
+
+	/**
+	 * Perform a rollback, as requested by the JDBC driver.  If any row updates have been delayed,
+	 * they are discarded.
+	 */
+	public synchronized void rollback() {
+		// transaction was rolled back - discard the updates
+		logger.debug(EELFLoggerDelegate.applicationLogger, "Rollback");;
+		transactionDigest.clear();
+	}
+
+	/**
+	 * Get all 
+	 * @param table
+	 * @param dbRow
+	 * @return
+	 */
+	public String getMusicKeyFromRowWithoutPrimaryIndexes(String table, JSONObject dbRow) {
+		TableInfo ti = dbi.getTableInfo(table);
+		return mi.getMusicKeyFromRowWithoutPrimaryIndexes(ti,table, dbRow);
+	}
+	
+	public String getMusicKeyFromRow(String table, JSONObject dbRow) {
+		TableInfo ti = dbi.getTableInfo(table);
+		return mi.getMusicKeyFromRow(ti,table, dbRow);
+	}
+	
+	/**
+	 * Returns all keys that matches the current sql statement, and not in already updated keys.
+	 * 
+	 * @param sql the query that we are getting keys for
+	 * @deprecated
+	 */
+	public ArrayList<String> getMusicKeys(String sql) {
+		ArrayList<String> musicKeys = new ArrayList<String>();
+		//\TODO See if this is required
+		/*
+		try {
+			net.sf.jsqlparser.statement.Statement stmt = CCJSqlParserUtil.parse(sql);
+			if (stmt instanceof Insert) {
+				Insert s = (Insert) stmt;
+				String tbl = s.getTable().getName();
+				musicKeys.add(generatePrimaryKey());
+			} else {
+				String tbl;
+				String where = "";
+				if (stmt instanceof Update){
+					Update u = (Update) stmt;
+					tbl = u.getTables().get(0).getName();
+					where = u.getWhere().toString();
+				} else if (stmt instanceof Delete) {
+					Delete d = (Delete) stmt;
+					tbl = d.getTable().getName();
+					if (d.getWhere()!=null) {
+						where = d.getWhere().toString();
+					}
+				} else {
+					System.err.println("Not recognized sql type");
+					tbl = "";
+				}
+				String dbiSelect = "SELECT * FROM " + tbl;
+				if (!where.equals("")) {
+					dbiSelect += "WHERE" + where;
+				}
+				ResultSet rs = dbi.executeSQLRead(dbiSelect);
+				musicKeys.addAll(getMusicKeysWhere(tbl, Utils.parseResults(dbi.getTableInfo(tbl), rs)));
+				rs.getStatement().close();
+			}
+		} catch (JSQLParserException | SQLException e) {
+			
+			e.printStackTrace();
+		}
+		System.err.print("MusicKeys:");
+		for(String musicKey:musicKeys) {
+			System.out.print(musicKey + ",");
+		}
+		*/
+		return musicKeys;
+	}
+
+	public void own(List<Range> ranges) {
+		throw new java.lang.UnsupportedOperationException("function not implemented yet");
+	}
+
+	public void appendRange(String rangeId, List<Range> ranges) {
+		throw new java.lang.UnsupportedOperationException("function not implemented yet");
+	}
+
+	public void relinquish(String ownerId, String rangeId) {
+		throw new java.lang.UnsupportedOperationException("function not implemented yet");
+	}
+
+
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/ProxyStatement.java b/mdbc-server/src/main/java/org/onap/music/mdbc/ProxyStatement.java
new file mode 100755
index 0000000..49b032e
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/ProxyStatement.java
@@ -0,0 +1,1281 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc;
+
+import java.io.InputStream;
+import java.io.Reader;
+import java.math.BigDecimal;
+import java.net.URL;
+import java.sql.Array;
+import java.sql.Blob;
+import java.sql.CallableStatement;
+import java.sql.Clob;
+import java.sql.Connection;
+import java.sql.Date;
+import java.sql.NClob;
+import java.sql.ParameterMetaData;
+import java.sql.PreparedStatement;
+import java.sql.Ref;
+import java.sql.ResultSet;
+import java.sql.ResultSetMetaData;
+import java.sql.RowId;
+import java.sql.SQLException;
+import java.sql.SQLWarning;
+import java.sql.SQLXML;
+import java.sql.Statement;
+import java.sql.Time;
+import java.sql.Timestamp;
+import java.util.Calendar;
+import java.util.Map;
+
+import org.apache.log4j.Logger;
+
+import org.onap.music.exceptions.QueryException;
+
+/**
+ * ProxyStatement is a proxy Statement that front ends Statements from the underlying JDBC driver.  It passes all operations through,
+ * and invokes the MusicSqlManager when there is the possibility that database tables have been created or dropped.
+ *
+ * @author Robert Eby
+ */
+public class ProxyStatement implements CallableStatement {
+	private static final Logger logger = Logger.getLogger(ProxyStatement.class);
+	private static final String DATASTAX_PREFIX = "com.datastax.driver";
+
+	private final Statement stmt;		// the Statement that we are proxying
+	private final MusicSqlManager mgr;
+
+	public ProxyStatement(Statement s, MusicSqlManager m) {
+		this.stmt = s;
+		this.mgr = m;
+	}
+
+	@Override
+	public <T> T unwrap(Class<T> iface) throws SQLException {
+		return stmt.unwrap(iface);
+	}
+
+	@Override
+	public boolean isWrapperFor(Class<?> iface) throws SQLException {
+		return stmt.isWrapperFor(iface);
+	}
+
+	@Override
+	public ResultSet executeQuery(String sql) throws SQLException {
+		logger.debug("executeQuery: "+sql);
+		ResultSet r = null;
+		try {
+			mgr.preStatementHook(sql);
+			r = stmt.executeQuery(sql);
+			mgr.postStatementHook(sql);
+			synchronizeTables(sql);
+		} catch (Exception e) {
+			String nm = e.getClass().getName();
+			logger.warn("executeQuery: exception "+nm);
+			if (!nm.startsWith(DATASTAX_PREFIX))
+				throw e;
+		}
+		return r;
+	}
+
+	@Override
+	public int executeUpdate(String sql) throws SQLException {
+		logger.debug("executeUpdate: "+sql);
+		int n = 0;
+		try {
+			mgr.preStatementHook(sql);
+			n = stmt.executeUpdate(sql);
+			mgr.postStatementHook(sql);
+			synchronizeTables(sql);
+		} catch (Exception e) {
+			String nm = e.getClass().getName();
+			logger.warn("executeUpdate: exception "+nm);
+			if (!nm.startsWith(DATASTAX_PREFIX))
+				throw e;
+		}
+		return n;
+	}
+
+	@Override
+	public void close() throws SQLException {
+		stmt.close();
+	}
+
+	@Override
+	public int getMaxFieldSize() throws SQLException {
+		return stmt.getMaxFieldSize();
+	}
+
+	@Override
+	public void setMaxFieldSize(int max) throws SQLException {
+		stmt.setMaxFieldSize(max);
+	}
+
+	@Override
+	public int getMaxRows() throws SQLException {
+		return stmt.getMaxRows();
+	}
+
+	@Override
+	public void setMaxRows(int max) throws SQLException {
+		stmt.setMaxRows(max);
+	}
+
+	@Override
+	public void setEscapeProcessing(boolean enable) throws SQLException {
+		stmt.setEscapeProcessing(enable);
+	}
+
+	@Override
+	public int getQueryTimeout() throws SQLException {
+		return stmt.getQueryTimeout();
+	}
+
+	@Override
+	public void setQueryTimeout(int seconds) throws SQLException {
+		stmt.setQueryTimeout(seconds);
+	}
+
+	@Override
+	public void cancel() throws SQLException {
+		stmt.cancel();
+	}
+
+	@Override
+	public SQLWarning getWarnings() throws SQLException {
+		return stmt.getWarnings();
+	}
+
+	@Override
+	public void clearWarnings() throws SQLException {
+		stmt.clearWarnings();
+	}
+
+	@Override
+	public void setCursorName(String name) throws SQLException {
+		stmt.setCursorName(name);
+	}
+
+	@Override
+	public boolean execute(String sql) throws SQLException {
+		logger.debug("execute: "+sql);
+		boolean b = false;
+		try {
+			mgr.preStatementHook(sql);
+			b = stmt.execute(sql);
+			mgr.postStatementHook(sql);
+			synchronizeTables(sql);
+		} catch (Exception e) {
+			String nm = e.getClass().getName();
+			// Note: this seems to be the only call Camunda uses, so it is the only one I am fixing for now.
+			boolean ignore = nm.startsWith(DATASTAX_PREFIX);
+//			ignore |= (nm.startsWith("org.h2.jdbc.JdbcSQLException") && e.getMessage().contains("already exists"));
+			if (ignore) {
+				logger.warn("execute: exception (IGNORED) "+nm);
+			} else {
+				logger.warn("execute: exception "+nm);
+				throw e;
+			}
+		}
+		return b;
+	}
+
+	@Override
+	public ResultSet getResultSet() throws SQLException {
+		return stmt.getResultSet();
+	}
+
+	@Override
+	public int getUpdateCount() throws SQLException {
+		return stmt.getUpdateCount();
+	}
+
+	@Override
+	public boolean getMoreResults() throws SQLException {
+		return stmt.getMoreResults();
+	}
+
+	@Override
+	public void setFetchDirection(int direction) throws SQLException {
+		stmt.setFetchDirection(direction);
+	}
+
+	@Override
+	public int getFetchDirection() throws SQLException {
+		return stmt.getFetchDirection();
+	}
+
+	@Override
+	public void setFetchSize(int rows) throws SQLException {
+		stmt.setFetchSize(rows);
+	}
+
+	@Override
+	public int getFetchSize() throws SQLException {
+		return stmt.getFetchSize();
+	}
+
+	@Override
+	public int getResultSetConcurrency() throws SQLException {
+		return stmt.getResultSetConcurrency();
+	}
+
+	@Override
+	public int getResultSetType() throws SQLException {
+		return stmt.getResultSetType();
+	}
+
+	@Override
+	public void addBatch(String sql) throws SQLException {
+		stmt.addBatch(sql);
+	}
+
+	@Override
+	public void clearBatch() throws SQLException {
+		stmt.clearBatch();
+	}
+
+	@Override
+	public int[] executeBatch() throws SQLException {
+		logger.debug("executeBatch");
+		int[] n = null;
+		try {
+			logger.warn("executeBatch() is not supported by MDBC; your results may be incorrect as a result.");
+			n = stmt.executeBatch();
+			synchronizeTables(null);
+		} catch (Exception e) {
+			String nm = e.getClass().getName();
+			logger.warn("executeBatch: exception "+nm);
+			if (!nm.startsWith(DATASTAX_PREFIX))
+				throw e;
+		}
+		return n;
+	}
+
+	@Override
+	public Connection getConnection() throws SQLException {
+		return stmt.getConnection();
+	}
+
+	@Override
+	public boolean getMoreResults(int current) throws SQLException {
+		return stmt.getMoreResults(current);
+	}
+
+	@Override
+	public ResultSet getGeneratedKeys() throws SQLException {
+		return stmt.getGeneratedKeys();
+	}
+
+	@Override
+	public int executeUpdate(String sql, int autoGeneratedKeys) throws SQLException {
+		logger.debug("executeUpdate: "+sql);
+		int n = 0;
+		try {
+			mgr.preStatementHook(sql);
+			n = stmt.executeUpdate(sql, autoGeneratedKeys);
+			mgr.postStatementHook(sql);
+			synchronizeTables(sql);
+		} catch (Exception e) {
+			String nm = e.getClass().getName();
+			logger.warn("executeUpdate: exception "+nm);
+			if (!nm.startsWith(DATASTAX_PREFIX))
+				throw e;
+		}
+		return n;
+	}
+
+	@Override
+	public int executeUpdate(String sql, int[] columnIndexes) throws SQLException {
+		logger.debug("executeUpdate: "+sql);
+		int n = 0;
+		try {
+			mgr.preStatementHook(sql);
+			n = stmt.executeUpdate(sql, columnIndexes);
+			mgr.postStatementHook(sql);
+			synchronizeTables(sql);
+		} catch (Exception e) {
+			String nm = e.getClass().getName();
+			logger.warn("executeUpdate: exception "+nm);
+			if (!nm.startsWith(DATASTAX_PREFIX))
+				throw e;
+		}
+		return n;
+	}
+
+	@Override
+	public int executeUpdate(String sql, String[] columnNames) throws SQLException {
+		logger.debug("executeUpdate: "+sql);
+		int n = 0;
+		try {
+			mgr.preStatementHook(sql);
+			n = stmt.executeUpdate(sql, columnNames);
+			mgr.postStatementHook(sql);
+			synchronizeTables(sql);
+		} catch (Exception e) {
+			String nm = e.getClass().getName();
+			logger.warn("executeUpdate: exception "+nm);
+			if (!nm.startsWith(DATASTAX_PREFIX))
+				throw e;
+		}
+		return n;
+	}
+
+	@Override
+	public boolean execute(String sql, int autoGeneratedKeys) throws SQLException {
+		logger.debug("execute: "+sql);
+		boolean b = false;
+		try {
+			mgr.preStatementHook(sql);
+			b = stmt.execute(sql, autoGeneratedKeys);
+			mgr.postStatementHook(sql);
+			synchronizeTables(sql);
+		} catch (Exception e) {
+			String nm = e.getClass().getName();
+			logger.warn("execute: exception "+nm);
+			if (!nm.startsWith(DATASTAX_PREFIX))
+				throw e;
+		}
+		return b;
+	}
+
+	@Override
+	public boolean execute(String sql, int[] columnIndexes) throws SQLException {
+		logger.debug("execute: "+sql);
+		boolean b = false;
+		try {
+			mgr.preStatementHook(sql);
+			b = stmt.execute(sql, columnIndexes);
+			mgr.postStatementHook(sql);
+			synchronizeTables(sql);
+		} catch (Exception e) {
+			String nm = e.getClass().getName();
+			logger.warn("execute: exception "+nm);
+			if (!nm.startsWith(DATASTAX_PREFIX))
+				throw e;
+		}
+		return b;
+	}
+
+	@Override
+	public boolean execute(String sql, String[] columnNames) throws SQLException {
+		logger.debug("execute: "+sql);
+		boolean b = false;
+		try {
+			mgr.preStatementHook(sql);
+			b = stmt.execute(sql, columnNames);
+			mgr.postStatementHook(sql);
+			synchronizeTables(sql);
+		} catch (Exception e) {
+			String nm = e.getClass().getName();
+			logger.warn("execute: exception "+nm);
+			if (!nm.startsWith(DATASTAX_PREFIX))
+				throw e;
+		}
+		return b;
+	}
+
+	@Override
+	public int getResultSetHoldability() throws SQLException {
+		return stmt.getResultSetHoldability();
+	}
+
+	@Override
+	public boolean isClosed() throws SQLException {
+		return stmt.isClosed();
+	}
+
+	@Override
+	public void setPoolable(boolean poolable) throws SQLException {
+		stmt.setPoolable(poolable);
+	}
+
+	@Override
+	public boolean isPoolable() throws SQLException {
+		return stmt.isPoolable();
+	}
+
+	@Override
+	public void closeOnCompletion() throws SQLException {
+		stmt.closeOnCompletion();
+	}
+
+	@Override
+	public boolean isCloseOnCompletion() throws SQLException {
+		return stmt.isCloseOnCompletion();
+	}
+
+	@Override
+	public ResultSet executeQuery() throws SQLException {
+		logger.debug("executeQuery");
+		return ((PreparedStatement)stmt).executeQuery();
+	}
+
+	@Override
+	public int executeUpdate() throws SQLException {
+		logger.debug("executeUpdate");
+		return ((PreparedStatement)stmt).executeUpdate();
+	}
+
+	@Override
+	public void setNull(int parameterIndex, int sqlType) throws SQLException {
+		((PreparedStatement)stmt).setNull(parameterIndex, sqlType);
+	}
+
+	@Override
+	public void setBoolean(int parameterIndex, boolean x) throws SQLException {
+		((PreparedStatement)stmt).setBoolean(parameterIndex, x);
+	}
+
+	@Override
+	public void setByte(int parameterIndex, byte x) throws SQLException {
+		((PreparedStatement)stmt).setByte(parameterIndex, x);
+	}
+
+	@Override
+	public void setShort(int parameterIndex, short x) throws SQLException {
+		((PreparedStatement)stmt).setShort(parameterIndex, x);
+	}
+
+	@Override
+	public void setInt(int parameterIndex, int x) throws SQLException {
+		((PreparedStatement)stmt).setInt(parameterIndex, x);
+	}
+
+	@Override
+	public void setLong(int parameterIndex, long x) throws SQLException {
+		((PreparedStatement)stmt).setLong(parameterIndex, x);
+	}
+
+	@Override
+	public void setFloat(int parameterIndex, float x) throws SQLException {
+		((PreparedStatement)stmt).setFloat(parameterIndex, x);
+	}
+
+	@Override
+	public void setDouble(int parameterIndex, double x) throws SQLException {
+		((PreparedStatement)stmt).setDouble(parameterIndex, x);
+	}
+
+	@Override
+	public void setBigDecimal(int parameterIndex, BigDecimal x) throws SQLException {
+		((PreparedStatement)stmt).setBigDecimal(parameterIndex, x);
+	}
+
+	@Override
+	public void setString(int parameterIndex, String x) throws SQLException {
+		((PreparedStatement)stmt).setString(parameterIndex, x);
+	}
+
+	@Override
+	public void setBytes(int parameterIndex, byte[] x) throws SQLException {
+		((PreparedStatement)stmt).setBytes(parameterIndex, x);
+	}
+
+	@Override
+	public void setDate(int parameterIndex, Date x) throws SQLException {
+		((PreparedStatement)stmt).setDate(parameterIndex, x);
+	}
+
+	@Override
+	public void setTime(int parameterIndex, Time x) throws SQLException {
+		((PreparedStatement)stmt).setTime(parameterIndex, x);
+	}
+
+	@Override
+	public void setTimestamp(int parameterIndex, Timestamp x) throws SQLException {
+		((PreparedStatement)stmt).setTimestamp(parameterIndex, x);
+	}
+
+	@Override
+	public void setAsciiStream(int parameterIndex, InputStream x, int length) throws SQLException {
+		((PreparedStatement)stmt).setAsciiStream(parameterIndex, x, length);
+	}
+
+	@SuppressWarnings("deprecation")
+	@Override
+	public void setUnicodeStream(int parameterIndex, InputStream x, int length) throws SQLException {
+		((PreparedStatement)stmt).setUnicodeStream(parameterIndex, x, length);
+	}
+
+	@Override
+	public void setBinaryStream(int parameterIndex, InputStream x, int length) throws SQLException {
+		((PreparedStatement)stmt).setBinaryStream(parameterIndex, x, length);
+	}
+
+	@Override
+	public void clearParameters() throws SQLException {
+		((PreparedStatement)stmt).clearParameters();
+	}
+
+	@Override
+	public void setObject(int parameterIndex, Object x, int targetSqlType) throws SQLException {
+		((PreparedStatement)stmt).setObject(parameterIndex, x, targetSqlType);
+	}
+
+	@Override
+	public void setObject(int parameterIndex, Object x) throws SQLException {
+		((PreparedStatement)stmt).setObject(parameterIndex, x);
+	}
+
+	@Override
+	public boolean execute() throws SQLException {
+		return ((PreparedStatement)stmt).execute();
+	}
+
+	@Override
+	public void addBatch() throws SQLException {
+		((PreparedStatement)stmt).addBatch();
+	}
+
+	@Override
+	public void setCharacterStream(int parameterIndex, Reader reader, int length) throws SQLException {
+		((PreparedStatement)stmt).setCharacterStream(parameterIndex, reader, length);
+	}
+
+	@Override
+	public void setRef(int parameterIndex, Ref x) throws SQLException {
+		((PreparedStatement)stmt).setRef(parameterIndex, x);
+	}
+
+	@Override
+	public void setBlob(int parameterIndex, Blob x) throws SQLException {
+		((PreparedStatement)stmt).setBlob(parameterIndex, x);
+	}
+
+	@Override
+	public void setClob(int parameterIndex, Clob x) throws SQLException {
+		((PreparedStatement)stmt).setClob(parameterIndex, x);
+	}
+
+	@Override
+	public void setArray(int parameterIndex, Array x) throws SQLException {
+		((PreparedStatement)stmt).setArray(parameterIndex, x);
+	}
+
+	@Override
+	public ResultSetMetaData getMetaData() throws SQLException {
+		return ((PreparedStatement)stmt).getMetaData();
+	}
+
+	@Override
+	public void setDate(int parameterIndex, Date x, Calendar cal) throws SQLException {
+		((PreparedStatement)stmt).setDate(parameterIndex, x, cal);
+	}
+
+	@Override
+	public void setTime(int parameterIndex, Time x, Calendar cal) throws SQLException {
+		((PreparedStatement)stmt).setTime(parameterIndex, x, cal);
+	}
+
+	@Override
+	public void setTimestamp(int parameterIndex, Timestamp x, Calendar cal) throws SQLException {
+		((CallableStatement)stmt).setTimestamp(parameterIndex, x, cal);
+	}
+
+	@Override
+	public void setNull(int parameterIndex, int sqlType, String typeName) throws SQLException {
+		((CallableStatement)stmt).setNull(parameterIndex, sqlType, typeName);
+	}
+
+	@Override
+	public void setURL(int parameterIndex, URL x) throws SQLException {
+		((CallableStatement)stmt).setURL(parameterIndex, x);
+	}
+
+	@Override
+	public ParameterMetaData getParameterMetaData() throws SQLException {
+		return ((CallableStatement)stmt).getParameterMetaData();
+	}
+
+	@Override
+	public void setRowId(int parameterIndex, RowId x) throws SQLException {
+		((CallableStatement)stmt).setRowId(parameterIndex, x);
+	}
+
+	@Override
+	public void setNString(int parameterIndex, String value) throws SQLException {
+		((CallableStatement)stmt).setNString(parameterIndex, value);
+	}
+
+	@Override
+	public void setNCharacterStream(int parameterIndex, Reader value, long length) throws SQLException {
+		((CallableStatement)stmt).setNCharacterStream(parameterIndex, value, length);
+	}
+
+	@Override
+	public void setNClob(int parameterIndex, NClob value) throws SQLException {
+		((CallableStatement)stmt).setNClob(parameterIndex, value);
+	}
+
+	@Override
+	public void setClob(int parameterIndex, Reader reader, long length) throws SQLException {
+		((CallableStatement)stmt).setClob(parameterIndex, reader, length);
+	}
+
+	@Override
+	public void setBlob(int parameterIndex, InputStream inputStream, long length) throws SQLException {
+		((CallableStatement)stmt).setBlob(parameterIndex, inputStream, length);
+	}
+
+	@Override
+	public void setNClob(int parameterIndex, Reader reader, long length) throws SQLException {
+		((CallableStatement)stmt).setNClob(parameterIndex, reader, length);
+	}
+
+	@Override
+	public void setSQLXML(int parameterIndex, SQLXML xmlObject) throws SQLException {
+		((CallableStatement)stmt).setSQLXML(parameterIndex, xmlObject);
+	}
+
+	@Override
+	public void setObject(int parameterIndex, Object x, int targetSqlType, int scaleOrLength) throws SQLException {
+		((CallableStatement)stmt).setObject(parameterIndex, x, targetSqlType, scaleOrLength);
+	}
+
+	@Override
+	public void setAsciiStream(int parameterIndex, InputStream x, long length) throws SQLException {
+		((CallableStatement)stmt).setAsciiStream(parameterIndex, x, length);
+	}
+
+	@Override
+	public void setBinaryStream(int parameterIndex, InputStream x, long length) throws SQLException {
+		((CallableStatement)stmt).setBinaryStream(parameterIndex, x, length);
+	}
+
+	@Override
+	public void setCharacterStream(int parameterIndex, Reader reader, long length) throws SQLException {
+		((CallableStatement)stmt).setCharacterStream(parameterIndex, reader, length);
+	}
+
+	@Override
+	public void setAsciiStream(int parameterIndex, InputStream x) throws SQLException {
+		((CallableStatement)stmt).setAsciiStream(parameterIndex, x);
+	}
+
+	@Override
+	public void setBinaryStream(int parameterIndex, InputStream x) throws SQLException {
+		((CallableStatement)stmt).setBinaryStream(parameterIndex, x);
+	}
+
+	@Override
+	public void setCharacterStream(int parameterIndex, Reader reader) throws SQLException {
+		((CallableStatement)stmt).setCharacterStream(parameterIndex, reader);
+	}
+
+	@Override
+	public void setNCharacterStream(int parameterIndex, Reader value) throws SQLException {
+		((CallableStatement)stmt).setNCharacterStream(parameterIndex, value);
+	}
+
+	@Override
+	public void setClob(int parameterIndex, Reader reader) throws SQLException {
+		((CallableStatement)stmt).setClob(parameterIndex, reader);
+	}
+
+	@Override
+	public void setBlob(int parameterIndex, InputStream inputStream) throws SQLException {
+		((CallableStatement)stmt).setBlob(parameterIndex, inputStream);
+	}
+
+	@Override
+	public void setNClob(int parameterIndex, Reader reader) throws SQLException {
+		((CallableStatement)stmt).setNClob(parameterIndex, reader);
+	}
+
+	@Override
+	public void registerOutParameter(int parameterIndex, int sqlType) throws SQLException {
+		((CallableStatement)stmt).registerOutParameter(parameterIndex, sqlType);
+	}
+
+	@Override
+	public void registerOutParameter(int parameterIndex, int sqlType, int scale) throws SQLException {
+		((CallableStatement)stmt).registerOutParameter(parameterIndex, sqlType, scale);
+	}
+
+	@Override
+	public boolean wasNull() throws SQLException {
+		return ((CallableStatement)stmt).wasNull();
+	}
+
+	@Override
+	public String getString(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getString(parameterIndex);
+	}
+
+	@Override
+	public boolean getBoolean(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getBoolean(parameterIndex);
+	}
+
+	@Override
+	public byte getByte(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getByte(parameterIndex);
+	}
+
+	@Override
+	public short getShort(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getShort(parameterIndex);
+	}
+
+	@Override
+	public int getInt(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getInt(parameterIndex);
+	}
+
+	@Override
+	public long getLong(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getLong(parameterIndex);
+	}
+
+	@Override
+	public float getFloat(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getFloat(parameterIndex);
+	}
+
+	@Override
+	public double getDouble(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getDouble(parameterIndex);
+	}
+
+	@SuppressWarnings("deprecation")
+	@Override
+	public BigDecimal getBigDecimal(int parameterIndex, int scale) throws SQLException {
+		return ((CallableStatement)stmt).getBigDecimal(parameterIndex, scale);
+	}
+
+	@Override
+	public byte[] getBytes(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getBytes(parameterIndex);
+	}
+
+	@Override
+	public Date getDate(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getDate(parameterIndex);
+	}
+
+	@Override
+	public Time getTime(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getTime(parameterIndex);
+	}
+
+	@Override
+	public Timestamp getTimestamp(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getTimestamp(parameterIndex);
+	}
+
+	@Override
+	public Object getObject(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getObject(parameterIndex);
+	}
+
+	@Override
+	public BigDecimal getBigDecimal(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getBigDecimal(parameterIndex);
+	}
+
+	@Override
+	public Object getObject(int parameterIndex, Map<String, Class<?>> map) throws SQLException {
+		return ((CallableStatement)stmt).getObject(parameterIndex, map);
+	}
+
+	@Override
+	public Ref getRef(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getRef(parameterIndex);
+	}
+
+	@Override
+	public Blob getBlob(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getBlob(parameterIndex);
+	}
+
+	@Override
+	public Clob getClob(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getClob(parameterIndex);
+	}
+
+	@Override
+	public Array getArray(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getArray(parameterIndex);
+	}
+
+	@Override
+	public Date getDate(int parameterIndex, Calendar cal) throws SQLException {
+		return ((CallableStatement)stmt).getDate(parameterIndex, cal);
+	}
+
+	@Override
+	public Time getTime(int parameterIndex, Calendar cal) throws SQLException {
+		return ((CallableStatement)stmt).getTime(parameterIndex, cal);
+	}
+
+	@Override
+	public Timestamp getTimestamp(int parameterIndex, Calendar cal) throws SQLException {
+		return ((CallableStatement)stmt).getTimestamp(parameterIndex, cal);
+	}
+
+	@Override
+	public void registerOutParameter(int parameterIndex, int sqlType, String typeName) throws SQLException {
+		((CallableStatement)stmt).registerOutParameter(parameterIndex, sqlType, typeName);
+	}
+
+	@Override
+	public void registerOutParameter(String parameterName, int sqlType) throws SQLException {
+		((CallableStatement)stmt).registerOutParameter(parameterName, sqlType);
+	}
+
+	@Override
+	public void registerOutParameter(String parameterName, int sqlType, int scale) throws SQLException {
+		((CallableStatement)stmt).registerOutParameter(parameterName, sqlType, scale);
+	}
+
+	@Override
+	public void registerOutParameter(String parameterName, int sqlType, String typeName) throws SQLException {
+		((CallableStatement)stmt).registerOutParameter(parameterName, sqlType, typeName);
+	}
+
+	@Override
+	public URL getURL(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getURL(parameterIndex);
+	}
+
+	@Override
+	public void setURL(String parameterName, URL val) throws SQLException {
+		((CallableStatement)stmt).setURL(parameterName, val);
+	}
+
+	@Override
+	public void setNull(String parameterName, int sqlType) throws SQLException {
+		((CallableStatement)stmt).setNull(parameterName, sqlType);
+	}
+
+	@Override
+	public void setBoolean(String parameterName, boolean x) throws SQLException {
+		((CallableStatement)stmt).setBoolean(parameterName, x);
+	}
+
+	@Override
+	public void setByte(String parameterName, byte x) throws SQLException {
+		((CallableStatement)stmt).setByte(parameterName, x);
+	}
+
+	@Override
+	public void setShort(String parameterName, short x) throws SQLException {
+		((CallableStatement)stmt).setShort(parameterName, x);
+	}
+
+	@Override
+	public void setInt(String parameterName, int x) throws SQLException {
+		((CallableStatement)stmt).setInt(parameterName, x);
+	}
+
+	@Override
+	public void setLong(String parameterName, long x) throws SQLException {
+		((CallableStatement)stmt).setLong(parameterName, x);
+	}
+
+	@Override
+	public void setFloat(String parameterName, float x) throws SQLException {
+		((CallableStatement)stmt).setFloat(parameterName, x);
+	}
+
+	@Override
+	public void setDouble(String parameterName, double x) throws SQLException {
+		((CallableStatement)stmt).setDouble(parameterName, x);
+	}
+
+	@Override
+	public void setBigDecimal(String parameterName, BigDecimal x) throws SQLException {
+		((CallableStatement)stmt).setBigDecimal(parameterName, x);
+	}
+
+	@Override
+	public void setString(String parameterName, String x) throws SQLException {
+		((CallableStatement)stmt).setString(parameterName, x);
+	}
+
+	@Override
+	public void setBytes(String parameterName, byte[] x) throws SQLException {
+		((CallableStatement)stmt).setBytes(parameterName, x);
+	}
+
+	@Override
+	public void setDate(String parameterName, Date x) throws SQLException {
+		((CallableStatement)stmt).setDate(parameterName, x);
+	}
+
+	@Override
+	public void setTime(String parameterName, Time x) throws SQLException {
+		((CallableStatement)stmt).setTime(parameterName, x);
+	}
+
+	@Override
+	public void setTimestamp(String parameterName, Timestamp x) throws SQLException {
+		((CallableStatement)stmt).setTimestamp(parameterName, x);
+	}
+
+	@Override
+	public void setAsciiStream(String parameterName, InputStream x, int length) throws SQLException {
+		((CallableStatement)stmt).setAsciiStream(parameterName, x, length);
+	}
+
+	@Override
+	public void setBinaryStream(String parameterName, InputStream x, int length) throws SQLException {
+		((CallableStatement)stmt).setBinaryStream(parameterName, x, length);
+	}
+
+	@Override
+	public void setObject(String parameterName, Object x, int targetSqlType, int scale) throws SQLException {
+		((CallableStatement)stmt).setObject(parameterName, x, targetSqlType, scale);
+	}
+
+	@Override
+	public void setObject(String parameterName, Object x, int targetSqlType) throws SQLException {
+		((CallableStatement)stmt).setObject(parameterName, x, targetSqlType);
+	}
+
+	@Override
+	public void setObject(String parameterName, Object x) throws SQLException {
+		((CallableStatement)stmt).setObject(parameterName, x);
+	}
+
+	@Override
+	public void setCharacterStream(String parameterName, Reader reader, int length) throws SQLException {
+		((CallableStatement)stmt).setCharacterStream(parameterName, reader, length);
+	}
+
+	@Override
+	public void setDate(String parameterName, Date x, Calendar cal) throws SQLException {
+		((CallableStatement)stmt).setDate(parameterName, x, cal);
+	}
+
+	@Override
+	public void setTime(String parameterName, Time x, Calendar cal) throws SQLException {
+		((CallableStatement)stmt).setTime(parameterName, x, cal);
+	}
+
+	@Override
+	public void setTimestamp(String parameterName, Timestamp x, Calendar cal) throws SQLException {
+		((CallableStatement)stmt).setTimestamp(parameterName, x, cal);
+	}
+
+	@Override
+	public void setNull(String parameterName, int sqlType, String typeName) throws SQLException {
+		((CallableStatement)stmt).setNull(parameterName, sqlType, typeName);
+	}
+
+	@Override
+	public String getString(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getString(parameterName);
+	}
+
+	@Override
+	public boolean getBoolean(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getBoolean(parameterName);
+	}
+
+	@Override
+	public byte getByte(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getByte(parameterName);
+	}
+
+	@Override
+	public short getShort(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getShort(parameterName);
+	}
+
+	@Override
+	public int getInt(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getInt(parameterName);
+	}
+
+	@Override
+	public long getLong(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getLong(parameterName);
+	}
+
+	@Override
+	public float getFloat(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getFloat(parameterName);
+	}
+
+	@Override
+	public double getDouble(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getDouble(parameterName);
+	}
+
+	@Override
+	public byte[] getBytes(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getBytes(parameterName);
+	}
+
+	@Override
+	public Date getDate(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getDate(parameterName);
+	}
+
+	@Override
+	public Time getTime(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getTime(parameterName);
+	}
+
+	@Override
+	public Timestamp getTimestamp(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getTimestamp(parameterName);
+	}
+
+	@Override
+	public Object getObject(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getObject(parameterName);
+	}
+
+	@Override
+	public BigDecimal getBigDecimal(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getBigDecimal(parameterName);
+	}
+
+	@Override
+	public Object getObject(String parameterName, Map<String, Class<?>> map) throws SQLException {
+		return ((CallableStatement)stmt).getObject(parameterName, map);
+	}
+
+	@Override
+	public Ref getRef(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getRef(parameterName);
+	}
+
+	@Override
+	public Blob getBlob(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getBlob(parameterName);
+	}
+
+	@Override
+	public Clob getClob(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getClob(parameterName);
+	}
+
+	@Override
+	public Array getArray(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getArray(parameterName);
+	}
+
+	@Override
+	public Date getDate(String parameterName, Calendar cal) throws SQLException {
+		return ((CallableStatement)stmt).getDate(parameterName, cal);
+	}
+
+	@Override
+	public Time getTime(String parameterName, Calendar cal) throws SQLException {
+		return ((CallableStatement)stmt).getTime(parameterName, cal);
+	}
+
+	@Override
+	public Timestamp getTimestamp(String parameterName, Calendar cal) throws SQLException {
+		return ((CallableStatement)stmt).getTimestamp(parameterName, cal);
+	}
+
+	@Override
+	public URL getURL(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getURL(parameterName);
+	}
+
+	@Override
+	public RowId getRowId(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getRowId(parameterIndex);
+	}
+
+	@Override
+	public RowId getRowId(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getRowId(parameterName);
+	}
+
+	@Override
+	public void setRowId(String parameterName, RowId x) throws SQLException {
+		((CallableStatement)stmt).setRowId(parameterName, x);
+	}
+
+	@Override
+	public void setNString(String parameterName, String value) throws SQLException {
+		((CallableStatement)stmt).setNString(parameterName, value);
+	}
+
+	@Override
+	public void setNCharacterStream(String parameterName, Reader value, long length) throws SQLException {
+		((CallableStatement)stmt).setNCharacterStream(parameterName, value, length);
+	}
+
+	@Override
+	public void setNClob(String parameterName, NClob value) throws SQLException {
+		((CallableStatement)stmt).setNClob(parameterName, value);
+	}
+
+	@Override
+	public void setClob(String parameterName, Reader reader, long length) throws SQLException {
+		((CallableStatement)stmt).setClob(parameterName, reader, length);
+	}
+
+	@Override
+	public void setBlob(String parameterName, InputStream inputStream, long length) throws SQLException {
+		((CallableStatement)stmt).setBlob(parameterName, inputStream, length);
+	}
+
+	@Override
+	public void setNClob(String parameterName, Reader reader, long length) throws SQLException {
+		((CallableStatement)stmt).setNClob(parameterName, reader, length);
+	}
+
+	@Override
+	public NClob getNClob(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getNClob(parameterIndex);
+	}
+
+	@Override
+	public NClob getNClob(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getNClob(parameterName);
+	}
+
+	@Override
+	public void setSQLXML(String parameterName, SQLXML xmlObject) throws SQLException {
+		((CallableStatement)stmt).setSQLXML(parameterName, xmlObject);
+	}
+
+	@Override
+	public SQLXML getSQLXML(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getSQLXML(parameterIndex);
+	}
+
+	@Override
+	public SQLXML getSQLXML(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getSQLXML(parameterName);
+	}
+
+	@Override
+	public String getNString(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getNString(parameterIndex);
+	}
+
+	@Override
+	public String getNString(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getNString(parameterName);
+	}
+
+	@Override
+	public Reader getNCharacterStream(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getNCharacterStream(parameterIndex);
+	}
+
+	@Override
+	public Reader getNCharacterStream(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getNCharacterStream(parameterName);
+	}
+
+	@Override
+	public Reader getCharacterStream(int parameterIndex) throws SQLException {
+		return ((CallableStatement)stmt).getCharacterStream(parameterIndex);
+	}
+
+	@Override
+	public Reader getCharacterStream(String parameterName) throws SQLException {
+		return ((CallableStatement)stmt).getCharacterStream(parameterName);
+	}
+
+	@Override
+	public void setBlob(String parameterName, Blob x) throws SQLException {
+		((CallableStatement)stmt).setBlob(parameterName, x);
+	}
+
+	@Override
+	public void setClob(String parameterName, Clob x) throws SQLException {
+		((CallableStatement)stmt).setClob(parameterName, x);
+	}
+
+	@Override
+	public void setAsciiStream(String parameterName, InputStream x, long length) throws SQLException {
+		((CallableStatement)stmt).setAsciiStream(parameterName, x, length);
+	}
+
+	@Override
+	public void setBinaryStream(String parameterName, InputStream x, long length) throws SQLException {
+		((CallableStatement)stmt).setBinaryStream(parameterName, x, length);
+	}
+
+	@Override
+	public void setCharacterStream(String parameterName, Reader reader, long length) throws SQLException {
+		((CallableStatement)stmt).setCharacterStream(parameterName, reader, length);
+	}
+
+	@Override
+	public void setAsciiStream(String parameterName, InputStream x) throws SQLException {
+		((CallableStatement)stmt).setAsciiStream(parameterName, x);
+	}
+
+	@Override
+	public void setBinaryStream(String parameterName, InputStream x) throws SQLException {
+		((CallableStatement)stmt).setBinaryStream(parameterName, x);
+	}
+
+	@Override
+	public void setCharacterStream(String parameterName, Reader reader) throws SQLException {
+		((CallableStatement)stmt).setCharacterStream(parameterName, reader);
+	}
+
+	@Override
+	public void setNCharacterStream(String parameterName, Reader value) throws SQLException {
+		((CallableStatement)stmt).setNCharacterStream(parameterName, value);
+	}
+
+	@Override
+	public void setClob(String parameterName, Reader reader) throws SQLException {
+		((CallableStatement)stmt).setClob(parameterName, reader);
+	}
+
+	@Override
+	public void setBlob(String parameterName, InputStream inputStream) throws SQLException {
+		((CallableStatement)stmt).setBlob(parameterName, inputStream);
+	}
+
+	@Override
+	public void setNClob(String parameterName, Reader reader) throws SQLException {
+		((CallableStatement)stmt).setNClob(parameterName, reader);
+	}
+
+	@Override
+	public <T> T getObject(int parameterIndex, Class<T> type) throws SQLException {
+		return ((CallableStatement)stmt).getObject(parameterIndex, type);
+	}
+
+	@Override
+	public <T> T getObject(String parameterName, Class<T> type) throws SQLException {
+		return ((CallableStatement)stmt).getObject(parameterName, type);
+	}
+
+	private void synchronizeTables(String sql) {
+		if (sql == null || sql.trim().toLowerCase().startsWith("create")) {
+			if (mgr != null) {
+				try {
+					mgr.synchronizeTables();
+				} catch (QueryException e) {
+					
+					e.printStackTrace();
+				}
+			}
+		}
+	}
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/Range.java b/mdbc-server/src/main/java/org/onap/music/mdbc/Range.java
new file mode 100644
index 0000000..e182368
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/Range.java
@@ -0,0 +1,65 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc;
+
+import java.io.Serializable;
+import java.util.Objects;
+
+
+/**
+ * This class represent a range of the whole database 
+ * For now a range represents directly a table in Cassandra
+ * In the future we may decide to partition ranges differently
+ * @author Enrique Saurez 
+ */
+public class Range implements Serializable {
+
+	private static final long serialVersionUID = 1610744496930800088L;
+
+	final public String table;
+
+	public Range(String table) {
+		this.table = table;
+	}
+
+	public String toString(){return table;}
+
+	/**
+	 * Compares to Range types
+	 * @param o the other range against which this is compared
+	 * @return the equality result
+	 */
+	@Override
+	public boolean equals(Object o) {
+		if (this == o) return true;
+		if (o == null || getClass() != o.getClass()) return false;
+		Range r = (Range) o;
+		return (table.equals(r.table));
+	}
+
+	@Override
+	public int hashCode(){
+		return Objects.hash(table);
+	}
+	
+	public boolean overlaps(Range other) {
+		return table == other.table;
+	}
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/RedoRow.java b/mdbc-server/src/main/java/org/onap/music/mdbc/RedoRow.java
new file mode 100644
index 0000000..dc46445
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/RedoRow.java
@@ -0,0 +1,50 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc;
+
+import java.util.UUID;
+
+public class RedoRow {
+    private String redoTableName;
+    private UUID redoRowIndex;
+
+    public RedoRow(){}
+
+    public RedoRow(String redoTableName, UUID redoRowIndex){
+        this.redoRowIndex = redoRowIndex;
+        this.redoTableName = redoTableName;
+    }
+
+    public String getRedoTableName() {
+        return redoTableName;
+    }
+
+    public void setRedoTableName(String redoTableName) {
+        this.redoTableName = redoTableName;
+    }
+
+    public UUID getRedoRowIndex() {
+        return redoRowIndex;
+    }
+
+    public void setRedoRowIndex(UUID redoRowIndex) {
+        this.redoRowIndex = redoRowIndex;
+    }
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/StateManager.java b/mdbc-server/src/main/java/org/onap/music/mdbc/StateManager.java
new file mode 100644
index 0000000..b8a4540
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/StateManager.java
@@ -0,0 +1,228 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc;
+
+import org.onap.music.exceptions.MDBCServiceException;
+import org.onap.music.logging.EELFLoggerDelegate;
+import org.onap.music.logging.format.AppMessages;
+import org.onap.music.logging.format.ErrorSeverity;
+import org.onap.music.logging.format.ErrorTypes;
+import org.onap.music.mdbc.mixins.MixinFactory;
+import org.onap.music.mdbc.mixins.MusicInterface;
+import org.onap.music.mdbc.mixins.MusicMixin;
+import org.onap.music.mdbc.tables.TxCommitProgress;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.SQLException;
+import java.sql.Statement;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Properties;
+
+/**
+ * \TODO Implement an interface for the server logic and a factory 
+ * @author Enrique Saurez
+ */
+public class StateManager {
+
+	//\TODO We need to fix the auto-commit mode and multiple transactions with the same connection
+
+	private static EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(StateManager.class);
+
+	/**
+	 * This is the interface used by all the MusicSqlManagers, 
+	 * that are created by the MDBC Server 
+	 * @see MusicInterface 
+     */
+    private MusicInterface musicManager;
+    /**
+     * This is the Running Queries information table.
+     * It mainly contains information about the entities 
+     * that have being committed so far.
+     */
+    private TxCommitProgress transactionInfo;
+    
+    private Map<String,MdbcConnection> mdbcConnections;
+
+    private String sqlDatabase;
+
+    private String url;
+    
+    private Properties info;
+    
+    @SuppressWarnings("unused")
+	private DatabasePartition ranges;
+    
+    public StateManager(String url, Properties info, DatabasePartition ranges, String sqlDatabase) throws MDBCServiceException {
+        this.sqlDatabase = sqlDatabase;
+        this.ranges = ranges;
+        this.url = url;
+        this.info = info;
+        this.transactionInfo = new TxCommitProgress();
+        //\fixme this is not really used, delete!
+        String cassandraUrl = info.getProperty(Configuration.KEY_CASSANDRA_URL, Configuration.CASSANDRA_URL_DEFAULT);
+        String mixin = info.getProperty(Configuration.KEY_MUSIC_MIXIN_NAME, Configuration.MUSIC_MIXIN_DEFAULT);
+        init(mixin, cassandraUrl);
+    }
+
+    protected void init(String mixin, String cassandraUrl) throws MDBCServiceException {
+        this.musicManager = MixinFactory.createMusicInterface(mixin, cassandraUrl, info);
+        this.musicManager.createKeyspace();
+        try {
+            this.musicManager.initializeMetricDataStructures();
+        } catch (MDBCServiceException e) {
+            logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(),AppMessages.UNKNOWNERROR, ErrorSeverity.CRITICAL, ErrorTypes.GENERALSERVICEERROR);
+            throw(e);
+        }
+        MusicMixin.loadProperties();
+        this.mdbcConnections = new HashMap<>();
+        initSqlDatabase();
+    }
+
+    protected void initSqlDatabase() throws MDBCServiceException {
+        try {
+            //\TODO: pass the driver as a variable
+            Class.forName("org.mariadb.jdbc.Driver");
+        }
+        catch (ClassNotFoundException e) {
+            logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(),AppMessages.UNKNOWNERROR, ErrorSeverity.CRITICAL, ErrorTypes.GENERALSERVICEERROR);
+            return;
+        }
+        try {
+            Connection sqlConnection = DriverManager.getConnection(this.url, this.info);
+            StringBuilder sql = new StringBuilder("CREATE DATABASE IF NOT EXISTS ")
+                    .append(sqlDatabase)
+                    .append(";");
+            Statement stmt = sqlConnection.createStatement();
+            stmt.execute(sql.toString());
+        } catch (SQLException e) {
+            logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(),AppMessages.UNKNOWNERROR, ErrorSeverity.CRITICAL, ErrorTypes.GENERALSERVICEERROR);
+            throw new MDBCServiceException(e.getMessage());
+        }
+    }
+
+    public void CloseConnection(String connectionId){
+        //\TODO check if there is a race condition
+        if(mdbcConnections.containsKey(connectionId)) {
+            transactionInfo.deleteTxProgress(connectionId);
+            try {
+                Connection conn = mdbcConnections.get(connectionId);
+                if(conn!=null)
+                    conn.close();
+            } catch (SQLException e) {
+                logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(),AppMessages.UNKNOWNERROR, ErrorSeverity.CRITICAL, ErrorTypes.GENERALSERVICEERROR);
+            }
+            mdbcConnections.remove(connectionId);
+        }
+    }
+
+    public void OpenConnection(String id, Properties information){
+       if(!mdbcConnections.containsKey(id)){
+           Connection sqlConnection;
+           MdbcConnection newConnection;
+           //Create connection to local SQL DB
+           //\TODO: create function to generate connection outside of open connection and get connection
+           try {
+               //\TODO: pass the driver as a variable
+               Class.forName("org.mariadb.jdbc.Driver");
+           }
+           catch (ClassNotFoundException e) {
+               // TODO Auto-generated catch block
+               logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(),AppMessages.UNKNOWNERROR, ErrorSeverity.CRITICAL, ErrorTypes.GENERALSERVICEERROR);
+               return;
+           }
+           try {
+               sqlConnection = DriverManager.getConnection(this.url+"/"+this.sqlDatabase, this.info);
+           } catch (SQLException e) {
+               logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(),AppMessages.QUERYERROR, ErrorSeverity.CRITICAL, ErrorTypes.QUERYERROR);
+               sqlConnection = null;
+           }
+           //Create MDBC connection
+           try {
+               newConnection = new MdbcConnection(id, this.url+"/"+this.sqlDatabase, sqlConnection, info, this.musicManager, transactionInfo,ranges);
+           } catch (MDBCServiceException e) {
+               logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(),AppMessages.UNKNOWNERROR, ErrorSeverity.CRITICAL, ErrorTypes.QUERYERROR);
+               newConnection = null;
+               return;
+           }
+           logger.info(EELFLoggerDelegate.applicationLogger,"Connection created for connection: "+id);
+           transactionInfo.createNewTransactionTracker(id, sqlConnection);
+           if(newConnection != null) {
+               mdbcConnections.put(id,newConnection);
+           }
+       }
+    }
+
+    /**
+     * This function returns the connection to the corresponding transaction 
+     * @param id of the transaction, created using
+     * @return
+     */
+    public Connection GetConnection(String id) {
+    	if(mdbcConnections.containsKey(id)) {
+    		//\TODO: Verify if this make sense
+    		// Intent: reinitialize transaction progress, when it already completed the previous tx for the same connection
+    		if(transactionInfo.isComplete(id)) {
+    			transactionInfo.reinitializeTxProgress(id);
+    		}
+    		return mdbcConnections.get(id);
+    	}
+
+    	Connection sqlConnection;
+    	MdbcConnection newConnection;
+        try {
+            //TODO: pass the driver as a variable
+            Class.forName("org.mariadb.jdbc.Driver");
+        }
+        catch (ClassNotFoundException e) {
+            // TODO Auto-generated catch block
+            logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(),AppMessages.QUERYERROR, ErrorSeverity.CRITICAL, ErrorTypes.QUERYERROR);
+        }
+
+        //Create connection to local SQL DB
+		try {
+			sqlConnection = DriverManager.getConnection(this.url+"/"+this.sqlDatabase, this.info);
+		} catch (SQLException e) {
+		    logger.error("sql connection was not created correctly");
+			logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(),AppMessages.QUERYERROR, ErrorSeverity.CRITICAL, ErrorTypes.QUERYERROR);
+			sqlConnection = null;
+		}
+		//Create MDBC connection
+    	try {
+			newConnection = new MdbcConnection(id,this.url+"/"+this.sqlDatabase, sqlConnection, info, this.musicManager, transactionInfo,ranges);
+		} catch (MDBCServiceException e) {
+			logger.error(EELFLoggerDelegate.errorLogger, e.getMessage(),AppMessages.UNKNOWNERROR, ErrorSeverity.CRITICAL, ErrorTypes.QUERYERROR);
+			newConnection = null;
+		}
+		logger.info(EELFLoggerDelegate.applicationLogger,"Connection created for connection: "+id);
+
+    	transactionInfo.createNewTransactionTracker(id, sqlConnection);
+    	if(newConnection != null) {
+            mdbcConnections.put(id,newConnection);
+        }
+    	return newConnection;
+    }
+
+	public void InitializeSystem() {
+		//\TODO Prefetch data to system using the data ranges as guide 
+		throw new UnsupportedOperationException("Function initialize system needs to be implemented id MdbcStateManager");
+	}
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/TableInfo.java b/mdbc-server/src/main/java/org/onap/music/mdbc/TableInfo.java
new file mode 100755
index 0000000..e92e187
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/TableInfo.java
@@ -0,0 +1,94 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc;
+
+import java.sql.Types;
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Information about a table in the local database.  It consists of three ordered list, which should all have the
+ * same length. A list of column names, a list of DB column types, and a list of booleans specifying which columns are keys.
+ * @author Robert P. Eby
+ */
+public class TableInfo {
+	/** An ordered list of the column names in this table */
+	public List<String>  columns;
+	/** An ordered list of the column types in this table; the types are integers taken from {@link java.sql.Types}. */
+	public List<Integer> coltype;
+	/** An ordered list of booleans indicating if a column is a primary key column or not. */
+	public List<Boolean> iskey;
+
+	/** Construct an (initially) empty TableInfo. */
+	public TableInfo() {
+		columns  = new ArrayList<String>();
+		coltype  = new ArrayList<Integer>();
+		iskey    = new ArrayList<Boolean>();
+	}
+	/**
+	 * Check whether the column whose name is <i>name</i> is a primary key column.
+	 * @param name the column name
+	 * @return true if it is, false otherwise
+	 */
+	public boolean iskey(String name) {
+		for (int i = 0; i < columns.size(); i++) {
+			if (this.columns.get(i).equalsIgnoreCase(name))
+				return this.iskey.get(i);
+		}
+		return false;
+	}
+	/**
+	 * Get the type of the column whose name is <i>name</i>.
+	 * @param name the column name
+	 * @return the column type or Types.NULL
+	 */
+	public int getColType(String name) {
+		for (int i = 0; i < columns.size(); i++) {
+			if (this.columns.get(i).equalsIgnoreCase(name))
+				return this.coltype.get(i);
+		}
+		return Types.NULL;
+	}
+	
+	/**
+	 * Checks if this table has a primary key
+	 * @return
+	 */
+	public boolean hasKey() {
+		for (Boolean b: iskey) {
+			if (b) {
+				return true;
+			}
+		}
+		return false;
+	}
+	
+	public List<String> getKeyColumns(){
+		List<String> keys = new ArrayList<String>();
+		int idx = 0;
+		for (Boolean b: iskey) {
+			if (b) {
+				keys.add(this.columns.get(idx));
+			}
+			idx++;
+		}
+		return keys;
+	}
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/configurations/NodeConfiguration.java b/mdbc-server/src/main/java/org/onap/music/mdbc/configurations/NodeConfiguration.java
new file mode 100644
index 0000000..fb4656c
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/configurations/NodeConfiguration.java
@@ -0,0 +1,90 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc.configurations;
+
+import org.onap.music.logging.EELFLoggerDelegate;
+import org.onap.music.mdbc.DatabasePartition;
+import org.onap.music.mdbc.MDBCUtils;
+import org.onap.music.mdbc.Range;
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+
+import java.io.BufferedReader;
+import java.io.FileNotFoundException;
+import java.io.FileReader;
+import java.io.IOException;
+import java.util.*;
+
+public class NodeConfiguration {
+
+    private static transient final EELFLoggerDelegate LOG = EELFLoggerDelegate.getLogger(NodeConfiguration.class);
+
+    public String sqlDatabaseName;
+    public DatabasePartition partition;
+    public String nodeName;
+
+    public NodeConfiguration(String tables, UUID mriIndex, String mriTableName, String sqlDatabaseName, String node, String redoRecordsTable){
+        //	public DatabasePartition(List<Range> knownRanges, UUID mriIndex, String mriTable, String lockId, String musicTxDigestTable) {
+        partition = new DatabasePartition(toRanges(tables), mriIndex,  mriTableName, null, redoRecordsTable) ;
+        this.sqlDatabaseName = sqlDatabaseName;
+        this.nodeName = node;
+    }
+
+    protected List<Range> toRanges(String tables){
+        List<Range> newRange = new ArrayList<>();
+        String[] tablesArray=tables.split(",");
+        for(String table: tablesArray) {
+            newRange.add(new Range(table));
+        }
+        return newRange;
+    }
+
+    public String toJson() {
+        GsonBuilder builder = new GsonBuilder();
+        builder.setPrettyPrinting().serializeNulls();;
+        Gson gson = builder.create();
+        return gson.toJson(this);
+    }
+
+    public void saveToFile(String file){
+        try {
+            String serialized = this.toJson();
+            MDBCUtils.saveToFile(serialized,file,LOG);
+        } catch (IOException e) {
+            e.printStackTrace();
+            // Exit with error
+            System.exit(1);
+        }
+    }
+
+    public static NodeConfiguration readJsonFromFile( String filepath) throws FileNotFoundException {
+        BufferedReader br;
+        try {
+            br = new BufferedReader(
+                    new FileReader(filepath));
+        } catch (FileNotFoundException e) {
+            LOG.error(EELFLoggerDelegate.errorLogger,"File was not found when reading json"+e);
+            throw e;
+        }
+        Gson gson = new Gson();
+        NodeConfiguration config = gson.fromJson(br, NodeConfiguration.class);
+        return config;
+    }
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/configurations/TablesConfiguration.java b/mdbc-server/src/main/java/org/onap/music/mdbc/configurations/TablesConfiguration.java
new file mode 100644
index 0000000..77df15f
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/configurations/TablesConfiguration.java
@@ -0,0 +1,198 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc.configurations;
+
+import org.onap.music.exceptions.MDBCServiceException;
+import org.onap.music.logging.EELFLoggerDelegate;
+import org.onap.music.mdbc.DatabaseOperations;
+import org.onap.music.mdbc.Range;
+import org.onap.music.mdbc.RedoRow;
+
+import com.google.gson.Gson;
+import org.onap.music.datastore.PreparedQueryObject;
+import org.onap.music.exceptions.MusicServiceException;
+import org.onap.music.main.MusicCore;
+
+import java.io.BufferedReader;
+import java.io.FileNotFoundException;
+import java.io.FileReader;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.UUID;
+
+public class TablesConfiguration {
+
+    private final String TIT_TABLE_NAME = "transactioninformation";
+    private final String MUSIC_TX_DIGEST_TABLE_NAME = "musictxdigest";
+
+    private transient static EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(TablesConfiguration.class);
+    private List<PartitionInformation> partitions;
+    private String internalNamespace;
+    private int internalReplicationFactor;
+    private String musicNamespace;
+    private String tableToPartitionName;
+    private String partitionInformationTableName;
+    private String redoHistoryTableName;
+    private String sqlDatabaseName;
+
+    public TablesConfiguration(){}
+
+    /**
+     * This functions initalize all the corresponding tables and rows
+     * @return a list of node configurations to be used when starting each of the servers
+     * @throws MDBCServiceException
+     * @apiNote This function assumes that when used, there is not associated redo history in the tables to the tables that are going to be managed by this configuration file
+     */
+    public List<NodeConfiguration> initializeAndCreateNodeConfigurations() throws MDBCServiceException {
+        initInternalNamespace();
+        DatabaseOperations.createNamespace(musicNamespace, internalReplicationFactor);
+        List<NodeConfiguration> nodeConfigs = new ArrayList<>();
+        if(partitions == null){
+            logger.error("Partitions was not correctly initialized");
+            throw new MDBCServiceException("Partition was not correctly initialized");
+        }
+        for(PartitionInformation partitionInfo : partitions){
+            String mriTableName = partitionInfo.mriTableName;
+            mriTableName = (mriTableName==null || mriTableName.isEmpty())?TIT_TABLE_NAME:mriTableName;
+            //0) Create the corresponding Music Range Information table
+            DatabaseOperations.createMusicRangeInformationTable(musicNamespace,mriTableName);
+            String musicTxDigestTableName = partitionInfo.mtxdTableName;
+            musicTxDigestTableName = (musicTxDigestTableName==null || musicTxDigestTableName.isEmpty())? MUSIC_TX_DIGEST_TABLE_NAME :musicTxDigestTableName;
+            DatabaseOperations.createMusicTxDigest(musicNamespace,musicTxDigestTableName);
+            String partitionId;
+            if(partitionInfo.partitionId==null || partitionInfo.partitionId.isEmpty()){
+                if(partitionInfo.replicationFactor==0){
+                    logger.error("Replication factor and partition id are both empty, and this is an invalid configuration" );
+                    throw new MDBCServiceException("Replication factor and partition id are both empty, and this is an invalid configuration");
+                }
+                //1) Create a row in the partition info table
+                //partitionId = DatabaseOperations.createPartitionInfoRow(musicNamespace,pitName,partitionInfo.replicationFactor,partitionInfo.tables,null);
+
+            }
+            else{
+                partitionId = partitionInfo.partitionId;
+            }
+            //2) Create a row in the transaction information table
+            UUID mriTableIndex = DatabaseOperations.createEmptyMriRow(musicNamespace,mriTableName,"",null,partitionInfo.getTables());
+            //3) Add owner and tit information to partition info table
+            RedoRow newRedoRow = new RedoRow(mriTableName,mriTableIndex);
+            //DatabaseOperations.updateRedoRow(musicNamespace,pitName,partitionId,newRedoRow,partitionInfo.owner,null);
+            //4) Update ttp with the new partition
+            //for(String table: partitionInfo.tables) {
+                //DatabaseOperations.updateTableToPartition(musicNamespace, ttpName, table, partitionId, null);
+            //}
+            //5) Add it to the redo history table
+            //DatabaseOperations.createRedoHistoryBeginRow(musicNamespace,rhName,newRedoRow,partitionId,null);
+            //6) Create config for this node
+            StringBuilder newStr = new StringBuilder();
+            for(Range r: partitionInfo.tables){
+                newStr.append(r.toString()).append(",");
+            }
+            nodeConfigs.add(new NodeConfiguration(newStr.toString(),mriTableIndex,mriTableName,sqlDatabaseName,partitionInfo.owner,musicTxDigestTableName));
+        }
+        return nodeConfigs;
+    }
+
+    private void initInternalNamespace() throws MDBCServiceException {
+        DatabaseOperations.createNamespace(internalNamespace,internalReplicationFactor);
+        StringBuilder createKeysTableCql = new StringBuilder("CREATE TABLE IF NOT EXISTS ")
+        .append(internalNamespace)
+        .append(".unsynced_keys (key text PRIMARY KEY);");
+        PreparedQueryObject queryObject = new PreparedQueryObject();
+        queryObject.appendQueryString(createKeysTableCql.toString());
+        try {
+            MusicCore.createTable(internalNamespace,"unsynced_keys", queryObject,"critical");
+        } catch (MusicServiceException e) {
+            logger.error("Error creating unsynced keys table" );
+            throw new MDBCServiceException("Error creating unsynced keys table");
+        }
+    }
+
+    public static TablesConfiguration readJsonFromFile(String filepath) throws FileNotFoundException {
+        BufferedReader br;
+        try {
+            br = new BufferedReader(
+                    new FileReader(filepath));
+        } catch (FileNotFoundException e) {
+            logger.error(EELFLoggerDelegate.errorLogger,"File was not found when reading json"+e);
+            throw e;
+        }
+        Gson gson = new Gson();
+        TablesConfiguration config = gson.fromJson(br, TablesConfiguration.class);
+        return config;
+    }
+
+    public class PartitionInformation{
+        private List<Range> tables;
+        private String owner;
+        private String mriTableName;
+        private String mtxdTableName;
+        private String partitionId;
+        private int replicationFactor;
+
+        public List<Range> getTables() {
+            return tables;
+        }
+
+        public void setTables(List<Range> tables) {
+            this.tables = tables;
+        }
+
+        public String getOwner() {
+            return owner;
+        }
+
+        public void setOwner(String owner) {
+            this.owner = owner;
+        }
+
+        public String getMriTableName() {
+            return mriTableName;
+        }
+
+        public void setMriTableName(String mriTableName) {
+            this.mriTableName = mriTableName;
+        }
+
+        public String getPartitionId() {
+            return partitionId;
+        }
+
+        public void setPartitionId(String partitionId) {
+            this.partitionId = partitionId;
+        }
+
+        public int getReplicationFactor() {
+            return replicationFactor;
+        }
+
+        public void setReplicationFactor(int replicationFactor) {
+            this.replicationFactor = replicationFactor;
+        }
+
+        public String getMtxdTableName(){
+           return mtxdTableName;
+        }
+
+        public void setMtxdTableName(String mtxdTableName) {
+            this.mtxdTableName = mtxdTableName;
+        }
+    }
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/configurations/config-0.json b/mdbc-server/src/main/java/org/onap/music/mdbc/configurations/config-0.json
new file mode 100644
index 0000000..2207a52
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/configurations/config-0.json
@@ -0,0 +1,16 @@
+{
+  "sqlDatabaseName": "test",
+  "partition": {
+    "musicRangeInformationTable": "transactioninformation",
+    "musicRangeInformationIndex": "259a7a7c-f741-44ae-8d6e-227a02ddc96e",
+    "musicTxDigestTable": "musictxdigest",
+    "partitionId": "ad766447-1adf-4800-aade-9f31a356ab4b",
+    "lockId": "",
+    "ranges": [
+      {
+        "table": "table11"
+      }
+    ]
+  },
+  "nodeName": ""
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/configurations/ranges.json b/mdbc-server/src/main/java/org/onap/music/mdbc/configurations/ranges.json
new file mode 100644
index 0000000..2a792e8
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/configurations/ranges.json
@@ -0,0 +1,14 @@
+{
+  "musicRangeInformationTable": "transactioninformation",
+  "musicRangeInformationIndex": "d0e8ef2e-aeca-4261-8d9d-1679f560b85b",
+  "partitionId": "798110cf-9c61-4db2-9446-cb2dbab5a143",
+  "lockId": "",
+  "ranges": [
+    {
+      "table": "table1"
+    },
+    {
+      "table": "table2"
+    }
+  ]
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/configurations/tableConfiguration.json b/mdbc-server/src/main/java/org/onap/music/mdbc/configurations/tableConfiguration.json
new file mode 100644
index 0000000..383593a
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/configurations/tableConfiguration.json
@@ -0,0 +1,23 @@
+{
+  "partitions": [
+    {
+      "tables": [
+        {
+          "table": "table11"
+        }
+      ],
+      "owner": "",
+      "mriTableName": "musicrangeinformation",
+      "mtxdTableName": "musictxdigest",
+      "partitionId": "",
+      "replicationFactor": 1
+    }
+  ],
+  "musicNamespace": "namespace",
+  "tableToPartitionName": "tabletopartition",
+  "partitionInformationTableName": "partitioninfo",
+  "redoHistoryTableName": "redohistory",
+  "sqlDatabaseName": "test",
+  "internalNamespace": "music_internal",
+  "internalReplicationFactor": 1
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/examples/EtdbTestClient.java b/mdbc-server/src/main/java/org/onap/music/mdbc/examples/EtdbTestClient.java
new file mode 100644
index 0000000..68d836b
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/examples/EtdbTestClient.java
@@ -0,0 +1,144 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc.examples;
+
+import java.sql.*;
+import org.apache.calcite.avatica.remote.Driver;
+
+public class EtdbTestClient {
+
+    public static class Hr {
+        public final Employee[] emps = {
+                new Employee(100, "Bill"),
+                new Employee(200, "Eric"),
+                new Employee(150, "Sebastian"),
+        };
+    }
+
+    public static class Employee {
+        public final int empid;
+        public final String name;
+
+        public Employee(int empid, String name) {
+            this.empid = empid;
+            this.name = name;
+        }
+    }
+
+    public static void main(String[] args){
+        try {
+            Class.forName("org.apache.calcite.avatica.remote.Driver");
+        } catch (ClassNotFoundException e) {
+            e.printStackTrace();
+            System.exit(1);
+        }
+        Connection connection;
+        try {
+            connection = DriverManager.getConnection("jdbc:avatica:remote:url=http://localhost:30000;serialization=protobuf");
+        } catch (SQLException e) {
+            e.printStackTrace();
+            return;
+        }
+
+        try {
+        connection.setAutoCommit(false);
+        } catch (SQLException e) {
+            e.printStackTrace();
+            return;
+        }
+
+
+        final String sql = "CREATE TABLE IF NOT EXISTS Persons (\n" +
+                "    PersonID int,\n" +
+                "    LastName varchar(255),\n" +
+                "    FirstName varchar(255),\n" +
+                "    Address varchar(255),\n" +
+                "    City varchar(255)\n" +
+                ");";
+        Statement stmt;
+        try {
+            stmt = connection.createStatement();
+        } catch (SQLException e) {
+            e.printStackTrace();
+            return;
+        }
+
+        boolean execute;
+        try {
+            execute = stmt.execute(sql);
+        } catch (SQLException e) {
+            e.printStackTrace();
+            return;
+        }
+
+        if (execute) {
+            try {
+                connection.commit();
+            } catch (SQLException e) {
+                e.printStackTrace();
+            }
+        }
+
+        try {
+            stmt.close();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+
+        final String insertSQL = "INSERT INTO Persons VALUES (1, 'Martinez', 'Juan', 'KACB', 'ATLANTA');";
+        Statement insertStmt;
+        try {
+            insertStmt = connection.createStatement();
+        } catch (SQLException e) {
+            e.printStackTrace();
+            return;
+        }
+
+        try {
+            execute = insertStmt.execute(insertSQL);
+        } catch (SQLException e) {
+            e.printStackTrace();
+            return;
+        }
+
+        try {
+            connection.commit();
+        } catch (SQLException e) {
+            e.printStackTrace();
+            return;
+        }
+
+        try {
+            stmt.close();
+            insertStmt.close();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+
+        try {
+            connection.commit();
+            connection.close();
+        } catch (SQLException e) {
+            e.printStackTrace();
+        }
+
+
+    }
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/mixins/Cassandra2Mixin.java b/mdbc-server/src/main/java/org/onap/music/mdbc/mixins/Cassandra2Mixin.java
new file mode 100755
index 0000000..97c1102
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/mixins/Cassandra2Mixin.java
@@ -0,0 +1,306 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc.mixins;
+
+import java.sql.Types;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Properties;
+
+import org.json.JSONObject;
+import org.json.JSONTokener;
+import org.onap.music.datastore.PreparedQueryObject;
+import org.onap.music.exceptions.MusicServiceException;
+import org.onap.music.main.MusicCore;
+import org.onap.music.main.ReturnType;
+
+import org.onap.music.logging.EELFLoggerDelegate;
+import org.onap.music.mdbc.DatabasePartition;
+import org.onap.music.mdbc.TableInfo;
+import com.datastax.driver.core.ResultSet;
+import com.datastax.driver.core.Row;
+
+/**
+ * This class provides the methods that MDBC needs to access Cassandra directly in order to provide persistence
+ * to calls to the user's DB.  It stores dirty row references in one table (called DIRTY____) rather than one dirty
+ * table per real table (as {@link org.onap.music.mdbc.mixins.CassandraMixin} does).
+ *
+ * @author Robert P. Eby
+ */
+public class Cassandra2Mixin extends CassandraMixin {
+	private static final String DIRTY_TABLE = "DIRTY____";	// it seems Cassandra won't allow __DIRTY__
+	private boolean dirty_table_created = false;
+	
+	private EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(Cassandra2Mixin.class);
+
+	public Cassandra2Mixin() {
+		super();
+	}
+
+	public Cassandra2Mixin(String url, Properties info) throws MusicServiceException {
+		super(url, info);
+	}
+
+	/**
+	 * Get the name of this MusicInterface mixin object.
+	 * @return the name
+	 */
+	@Override
+	public String getMixinName() {
+		return "cassandra2";
+	}
+	/**
+	 * Do what is needed to close down the MUSIC connection.
+	 */
+	@Override
+	public void close() {
+		super.close();
+	}
+
+	/**
+	 * This method creates a keyspace in Music/Cassandra to store the data corresponding to the SQL tables.
+	 * The keyspace name comes from the initialization properties passed to the JDBC driver.
+	 */
+	@Override
+	public void createKeyspace() {
+		super.createKeyspace();
+	}
+
+	/**
+	 * This method performs all necessary initialization in Music/Cassandra to store the table <i>tableName</i>.
+	 * @param tableName the table to initialize MUSIC for
+	 */
+	@Override
+	public void initializeMusicForTable(TableInfo ti, String tableName) {
+		super.initializeMusicForTable(ti, tableName);
+	}
+
+	/**
+	 * Create a <i>dirty row</i> table for the real table <i>tableName</i>.  The primary keys columns from the real table are recreated in
+	 * the dirty table, along with a "REPLICA__" column that names the replica that should update it's internal state from MUSIC.
+	 * @param tableName the table to create a "dirty" table for
+	 */
+	@Override
+	public void createDirtyRowTable(TableInfo ti, String tableName) {
+		if (!dirty_table_created) {
+			String cql = String.format("CREATE TABLE IF NOT EXISTS %s.%s (tablename TEXT, replica TEXT, keyset TEXT, PRIMARY KEY(tablename, replica, keyset));", music_ns, DIRTY_TABLE);
+			executeMusicWriteQuery(cql);
+			dirty_table_created = true;
+		}
+	}
+	/**
+	 * Drop the dirty row table for <i>tableName</i> from MUSIC.
+	 * @param tableName the table being dropped
+	 */
+	@Override
+	public void dropDirtyRowTable(String tableName) {
+		// no-op
+	}
+
+	private String buildJSON(TableInfo ti, String tableName, Object[] keys) {
+		// Build JSON string representing this keyset
+		JSONObject jo = new JSONObject();
+		int j = 0;
+		for (int i = 0; i < ti.columns.size(); i++) {
+			if (ti.iskey.get(i)) {
+				jo.put(ti.columns.get(i), keys[j++]);
+			}
+		}
+		return jo.toString();
+	}
+	/**
+	 * Remove the entries from the dirty row (for this replica) that correspond to a set of primary keys
+	 * @param tableName the table we are removing dirty entries from
+	 * @param keys the primary key values to use in the DELETE.  Note: this is *only* the primary keys, not a full table row.
+	 */
+	@Override
+	public void cleanDirtyRow(TableInfo ti, String tableName, JSONObject keys) {
+		String cql = String.format("DELETE FROM %s.%s WHERE tablename = ? AND replica = ? AND keyset = ?;", music_ns, DIRTY_TABLE);
+		//Session sess = getMusicSession();
+		//PreparedStatement ps = getPreparedStatementFromCache(cql);
+		Object[] values = new Object[] { tableName, myId, keys };
+		logger.debug(EELFLoggerDelegate.applicationLogger,"Executing MUSIC write:"+ cql + " with values " + values[0] + " " + values[1] + " " + values[2]);
+		
+		PreparedQueryObject pQueryObject = new PreparedQueryObject();
+		pQueryObject.appendQueryString(cql);
+		pQueryObject.addValue(tableName);
+		pQueryObject.addValue(myId);
+		pQueryObject.addValue(keys);
+		ReturnType rt = MusicCore.eventualPut(pQueryObject);
+		if(rt.getResult().getResult().toLowerCase().equals("failure")) {
+			logger.error(EELFLoggerDelegate.errorLogger, "Failure while eventualPut...: "+rt.getMessage());
+		}
+		/*BoundStatement bound = ps.bind(values);
+		bound.setReadTimeoutMillis(60000);
+		synchronized (sess) {
+			sess.execute(bound);
+		}*/
+	}
+	/**
+	 * Get a list of "dirty rows" for a table.  The dirty rows returned apply only to this replica,
+	 * and consist of a Map of primary key column names and values.
+	 * @param tableName the table we are querying for
+	 * @return a list of maps; each list item is a map of the primary key names and values for that "dirty row".
+	 */
+	@SuppressWarnings("deprecation")
+	@Override
+	public List<Map<String,Object>> getDirtyRows(TableInfo ti, String tableName) {
+		String cql = String.format("SELECT keyset FROM %s.%s WHERE tablename = ? AND replica = ?;", music_ns, DIRTY_TABLE);
+		logger.debug(EELFLoggerDelegate.applicationLogger,"Executing MUSIC write:"+ cql + " with values " + tableName + " " + myId);
+		
+		PreparedQueryObject pQueryObject = new PreparedQueryObject();
+		pQueryObject.appendQueryString(cql);
+		pQueryObject.addValue(tableName);
+		pQueryObject.addValue(myId);
+		ResultSet results = null;
+		try {
+			results = MusicCore.get(pQueryObject);
+		} catch (MusicServiceException e) {
+			e.printStackTrace();
+		}
+		/*Session sess = getMusicSession();
+		PreparedStatement ps = getPreparedStatementFromCache(cql);
+		BoundStatement bound = ps.bind(new Object[] { tableName, myId });
+		bound.setReadTimeoutMillis(60000);
+		ResultSet results = null;
+		synchronized (sess) {
+			results = sess.execute(bound);
+		}*/
+		List<Map<String,Object>> list = new ArrayList<Map<String,Object>>();
+		for (Row row : results) {
+			String json = row.getString("keyset");
+			JSONObject jo = new JSONObject(new JSONTokener(json));
+			Map<String,Object> objs = new HashMap<String,Object>();
+			for (String colname : jo.keySet()) {
+				int coltype = ti.getColType(colname);
+				switch (coltype) {
+				case Types.BIGINT:
+					objs.put(colname, jo.getLong(colname));
+					break;
+				case Types.BOOLEAN:
+					objs.put(colname, jo.getBoolean(colname));
+					break;
+				case Types.BLOB:
+					logger.error(EELFLoggerDelegate.errorLogger,"WE DO NOT SUPPORT BLOBS AS PRIMARY KEYS!! COLUMN NAME="+colname);
+					// throw an exception here???
+					break;
+				case Types.DOUBLE:
+					objs.put(colname, jo.getDouble(colname));
+					break;
+				case Types.INTEGER:
+					objs.put(colname, jo.getInt(colname));
+					break;
+				case Types.TIMESTAMP:
+					objs.put(colname, new Date(jo.getString(colname)));
+					break;
+				case Types.VARCHAR:
+				default:
+					objs.put(colname, jo.getString(colname));
+					break;
+				}
+			}
+			list.add(objs);
+		}
+		return list;
+	}
+
+	/**
+	 * Drops the named table and its dirty row table (for all replicas) from MUSIC.  The dirty row table is dropped first.
+	 * @param tableName This is the table that has been dropped
+	 */
+	@Override
+	public void clearMusicForTable(String tableName) {
+		super.clearMusicForTable(tableName);
+	}
+	/**
+	 * This function is called whenever there is a DELETE to a row on a local SQL table, wherein it updates the
+	 * MUSIC/Cassandra tables (both dirty bits and actual data) corresponding to the SQL write. MUSIC propagates
+	 * it to the other replicas.
+	 *
+	 * @param tableName This is the table that has changed.
+	 * @param oldRow This is a copy of the old row being deleted
+	 */
+	public void deleteFromEntityTableInMusic(TableInfo ti, String tableName, JSONObject oldRow) {
+		super.deleteFromEntityTableInMusic(ti, tableName, oldRow);
+	}
+	/**
+	 * This method is called whenever there is a SELECT on a local SQL table, wherein it first checks the local
+	 * dirty bits table to see if there are any keys in Cassandra whose value has not yet been sent to SQL
+	 * @param tableName This is the table on which the select is being performed
+	 */
+	@Override
+	public void readDirtyRowsAndUpdateDb(DBInterface dbi, String tableName) {
+		super.readDirtyRowsAndUpdateDb(dbi, tableName);
+	}
+
+	/**
+	 * This method is called whenever there is an INSERT or UPDATE to a local SQL table, wherein it updates the
+	 * MUSIC/Cassandra tables (both dirty bits and actual data) corresponding to the SQL write. Music propagates
+	 * it to the other replicas.
+	 *
+	 * @param tableName This is the table that has changed.
+	 * @param changedRow This is information about the row that has changed
+	 */
+	@Override
+	public void updateDirtyRowAndEntityTableInMusic(TableInfo ti, String tableName, JSONObject changedRow) {
+		super.updateDirtyRowAndEntityTableInMusic(ti, tableName, changedRow);
+	}
+	
+	/**
+	 * Mark rows as "dirty" in the dirty rows table for <i>tableName</i>.  Rows are marked for all replicas but
+	 * this one (this replica already has the up to date data).
+	 * @param tableName the table we are marking dirty
+	 * @param keys an ordered list of the values being put into the table.  The values that correspond to the tables'
+	 * primary key are copied into the dirty row table.
+	 */
+	@Deprecated
+	public void markDirtyRow(TableInfo ti, String tableName, Object[] keys) {
+		String cql = String.format("INSERT INTO %s.%s (tablename, replica, keyset) VALUES (?, ?, ?);", music_ns, DIRTY_TABLE);
+		/*Session sess = getMusicSession();
+		PreparedStatement ps = getPreparedStatementFromCache(cql);*/
+		@SuppressWarnings("unused")
+		Object[] values = new Object[] { tableName, "", buildJSON(ti, tableName, keys) };
+		PreparedQueryObject pQueryObject = null;
+		for (String repl : allReplicaIds) {
+			/*if (!repl.equals(myId)) {
+				values[1] = repl;
+				logger.info(EELFLoggerDelegate.applicationLogger,"Executing MUSIC write:"+ cql + " with values " + values[0] + " " + values[1] + " " + values[2]);
+				
+				BoundStatement bound = ps.bind(values);
+				bound.setReadTimeoutMillis(60000);
+				synchronized (sess) {
+					sess.execute(bound);
+				}
+			}*/
+			pQueryObject = new PreparedQueryObject();
+			pQueryObject.appendQueryString(cql);
+			pQueryObject.addValue(tableName);
+			pQueryObject.addValue(repl);
+			pQueryObject.addValue(buildJSON(ti, tableName, keys));
+			ReturnType rt = MusicCore.eventualPut(pQueryObject);
+			if(rt.getResult().getResult().toLowerCase().equals("failure")) {
+				System.out.println("Failure while critical put..."+rt.getMessage());
+			}
+		}
+	}
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/mixins/CassandraMixin.java b/mdbc-server/src/main/java/org/onap/music/mdbc/mixins/CassandraMixin.java
new file mode 100755
index 0000000..0e8da81
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/mixins/CassandraMixin.java
@@ -0,0 +1,1250 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc.mixins;
+
+import java.io.IOException;
+import java.io.Reader;
+import java.nio.ByteBuffer;
+import java.sql.Types;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Properties;
+import java.util.Set;
+import java.util.TreeSet;
+import java.util.UUID;
+
+import org.onap.music.mdbc.*;
+import org.onap.music.mdbc.DatabaseOperations;
+import org.onap.music.mdbc.tables.PartitionInformation;
+import org.onap.music.mdbc.tables.MusicTxDigestId;
+import org.onap.music.mdbc.tables.StagingTable;
+import org.onap.music.mdbc.tables.MriReference;
+import org.onap.music.mdbc.tables.MusicRangeInformationRow;
+import org.onap.music.mdbc.tables.TxCommitProgress;
+
+import org.json.JSONObject;
+import org.onap.music.datastore.CassaLockStore;
+import org.onap.music.datastore.PreparedQueryObject;
+import org.onap.music.exceptions.MusicLockingException;
+import org.onap.music.exceptions.MusicQueryException;
+import org.onap.music.exceptions.MusicServiceException;
+import org.onap.music.main.MusicCore;
+import org.onap.music.main.ResultType;
+import org.onap.music.main.ReturnType;
+
+import org.onap.music.exceptions.MDBCServiceException;
+import org.onap.music.logging.EELFLoggerDelegate;
+import com.datastax.driver.core.BoundStatement;
+import com.datastax.driver.core.ColumnDefinitions;
+import com.datastax.driver.core.DataType;
+import com.datastax.driver.core.PreparedStatement;
+import com.datastax.driver.core.ResultSet;
+import com.datastax.driver.core.Row;
+import com.datastax.driver.core.Session;
+
+/**
+ * This class provides the methods that MDBC needs to access Cassandra directly in order to provide persistence
+ * to calls to the user's DB.  It does not do any table or row locking.
+ *
+ * <p>This code only supports the following limited list of H2 and Cassandra data types:</p>
+ * <table summary="">
+ * <tr><th>H2 Data Type</th><th>Mapped to Cassandra Data Type</th></tr>
+ * <tr><td>BIGINT</td><td>BIGINT</td></tr>
+ * <tr><td>BOOLEAN</td><td>BOOLEAN</td></tr>
+ * <tr><td>CLOB</td><td>BLOB</td></tr>
+ * <tr><td>DOUBLE</td><td>DOUBLE</td></tr>
+ * <tr><td>INTEGER</td><td>INT</td></tr>
+ *  <tr><td>TIMESTAMP</td><td>TIMESTAMP</td></tr>
+ * <tr><td>VARBINARY</td><td>BLOB</td></tr>
+ * <tr><td>VARCHAR</td><td>VARCHAR</td></tr>
+ * </table>
+ *
+ * @author Robert P. Eby
+ */
+public class CassandraMixin implements MusicInterface {
+	/** The property name to use to identify this replica to MusicSqlManager */
+	public static final String KEY_MY_ID              = "myid";
+	/** The property name to use for the comma-separated list of replica IDs. */
+	public static final String KEY_REPLICAS           = "replica_ids";
+	/** The property name to use to identify the IP address for Cassandra. */
+	public static final String KEY_MUSIC_ADDRESS      = "music_address";
+	/** The property name to use to provide the replication factor for Cassandra. */
+	public static final String KEY_MUSIC_RFACTOR      = "music_rfactor";
+	/** The property name to use to provide the replication factor for Cassandra. */
+	public static final String KEY_MUSIC_NAMESPACE = "music_namespace";
+	/** The default property value to use for the Cassandra keyspace. */
+	public static final String DEFAULT_MUSIC_KEYSPACE = "mdbc";
+	/** The default property value to use for the Cassandra IP address. */
+	public static final String DEFAULT_MUSIC_ADDRESS  = "localhost";
+	/** The default property value to use for the Cassandra replication factor. */
+	public static final int    DEFAULT_MUSIC_RFACTOR  = 1;
+	/** The default primary string column, if none is provided. */
+	public static final String MDBC_PRIMARYKEY_NAME = "mdbc_cuid";
+	/** Type of the primary key, if none is defined by the user */
+	public static final String MDBC_PRIMARYKEY_TYPE = "uuid";
+	/** Namespace for the tables in MUSIC (Cassandra) */
+	public static final String DEFAULT_MUSIC_NAMESPACE = "namespace";
+	
+	//\TODO Add logic to change the names when required and create the tables when necessary
+    private String musicTxDigestTableName = "musictxdigest";
+	private String musicRangeInformationTableName = "musicrangeinformation";
+
+	private EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(CassandraMixin.class);
+	
+	private static final Map<Integer, String> typemap         = new HashMap<>();
+	static {
+		// We only support the following type mappings currently (from DB -> Cassandra).
+		// Anything else will likely cause a NullPointerException
+		typemap.put(Types.BIGINT,    "BIGINT");	// aka. IDENTITY
+		typemap.put(Types.BLOB,      "VARCHAR");
+		typemap.put(Types.BOOLEAN,   "BOOLEAN");
+		typemap.put(Types.CLOB,      "BLOB");
+		typemap.put(Types.DATE,      "VARCHAR");
+		typemap.put(Types.DOUBLE,    "DOUBLE");
+		typemap.put(Types.DECIMAL,   "DECIMAL");
+		typemap.put(Types.INTEGER,   "INT");
+		//typemap.put(Types.TIMESTAMP, "TIMESTAMP");
+		typemap.put(Types.SMALLINT, "SMALLINT");
+		typemap.put(Types.TIMESTAMP, "VARCHAR");
+		typemap.put(Types.VARBINARY, "BLOB");
+		typemap.put(Types.VARCHAR,   "VARCHAR");
+		typemap.put(Types.CHAR,   	 "VARCHAR");
+		//The "Hacks", these don't have a direct mapping
+		//typemap.put(Types.DATE,   	 "VARCHAR");
+		//typemap.put(Types.DATE,   	 "TIMESTAMP");
+	}
+
+	protected final String music_ns;
+	protected final String myId;
+	protected final String[] allReplicaIds;
+	private final String musicAddress;
+	private final int    music_rfactor;
+	private MusicConnector mCon        = null;
+	private Session musicSession       = null;
+	private boolean keyspace_created   = false;
+	private Map<String, PreparedStatement> ps_cache = new HashMap<>();
+	private Set<String> in_progress    = Collections.synchronizedSet(new HashSet<String>());
+
+	public CassandraMixin() {
+		//this.logger         = null;
+		this.musicAddress   = null;
+		this.music_ns       = null;
+		this.music_rfactor  = 0;
+		this.myId           = null;
+		this.allReplicaIds  = null;
+    }
+
+	public CassandraMixin(String url, Properties info) throws MusicServiceException {
+		// Default values -- should be overridden in the Properties
+		// Default to using the host_ids of the various peers as the replica IDs (this is probably preferred)
+		this.musicAddress   = info.getProperty(KEY_MUSIC_ADDRESS, DEFAULT_MUSIC_ADDRESS);
+		logger.info(EELFLoggerDelegate.applicationLogger,"MusicSqlManager: musicAddress="+musicAddress);
+
+		String s            = info.getProperty(KEY_MUSIC_RFACTOR);
+		this.music_rfactor  = (s == null) ? DEFAULT_MUSIC_RFACTOR : Integer.parseInt(s);
+		
+		this.myId           = info.getProperty(KEY_MY_ID,    getMyHostId());
+		logger.info(EELFLoggerDelegate.applicationLogger,"MusicSqlManager: myId="+myId);
+
+		
+		this.allReplicaIds  = info.getProperty(KEY_REPLICAS, getAllHostIds()).split(",");
+		logger.info(EELFLoggerDelegate.applicationLogger,"MusicSqlManager: allReplicaIds="+info.getProperty(KEY_REPLICAS, this.myId));
+
+		this.music_ns       = info.getProperty(KEY_MUSIC_NAMESPACE,DEFAULT_MUSIC_NAMESPACE);
+		logger.info(EELFLoggerDelegate.applicationLogger,"MusicSqlManager: music_ns="+music_ns);
+        musicRangeInformationTableName = "musicrangeinformation";
+        createMusicKeyspace();
+    }
+
+    private void createMusicKeyspace() throws MusicServiceException {
+
+        Map<String,Object> replicationInfo = new HashMap<>();
+        replicationInfo.put("'class'", "'SimpleStrategy'");
+        replicationInfo.put("'replication_factor'", music_rfactor);
+
+        PreparedQueryObject queryObject = new PreparedQueryObject();
+        queryObject.appendQueryString(
+                "CREATE KEYSPACE " + this.music_ns + " WITH REPLICATION = " + replicationInfo.toString().replaceAll("=", ":"));
+
+        try {
+            MusicCore.nonKeyRelatedPut(queryObject, "eventual");
+        } catch (MusicServiceException e) {
+            if (e.getMessage().equals("Keyspace "+this.music_ns+" already exists")) {
+                // ignore
+            } else {
+                throw(e);
+            }
+        }
+    }
+
+	private String getMyHostId() {
+		ResultSet rs = executeMusicRead("SELECT HOST_ID FROM SYSTEM.LOCAL");
+		Row row = rs.one();
+		return (row == null) ? "UNKNOWN" : row.getUUID("HOST_ID").toString();
+	}
+	private String getAllHostIds() {
+		ResultSet results = executeMusicRead("SELECT HOST_ID FROM SYSTEM.PEERS");
+		StringBuilder sb = new StringBuilder(myId);
+		for (Row row : results) {
+			sb.append(",");
+			sb.append(row.getUUID("HOST_ID").toString());
+		}
+		return sb.toString();
+	}
+
+	/**
+	 * Get the name of this MusicInterface mixin object.
+	 * @return the name
+	 */
+	@Override
+	public String getMixinName() {
+		return "cassandra";
+	}
+	/**
+	 * Do what is needed to close down the MUSIC connection.
+	 */
+	@Override
+	public void close() {
+		if (musicSession != null) {
+			musicSession.close();
+			musicSession = null;
+		}
+	}
+	@Override
+	public void initializeMetricDataStructures() throws MDBCServiceException {
+	    try {
+            DatabaseOperations.createMusicTxDigest(music_ns, musicTxDigestTableName);//\TODO If we start partitioning the data base, we would need to use the redotable number
+ 			DatabaseOperations.createMusicRangeInformationTable(music_ns, musicRangeInformationTableName);
+		}
+		catch(MDBCServiceException e){
+            logger.error(EELFLoggerDelegate.errorLogger,"Error creating tables in MUSIC");
+        }
+	}
+	
+	/**
+	 * This method creates a keyspace in Music/Cassandra to store the data corresponding to the SQL tables.
+	 * The keyspace name comes from the initialization properties passed to the JDBC driver.
+	 */
+	@Override
+	public void createKeyspace() {
+		if (keyspace_created == false) {
+			String cql = String.format("CREATE KEYSPACE IF NOT EXISTS %s WITH REPLICATION = { 'class' : 'SimpleStrategy', 'replication_factor' : %d };", music_ns, music_rfactor);
+			executeMusicWriteQuery(cql);
+			keyspace_created = true;
+		}
+	}
+
+	/**
+	 * This method performs all necessary initialization in Music/Cassandra to store the table <i>tableName</i>.
+	 * @param tableName the table to initialize MUSIC for
+	 */
+	@Override
+	public void initializeMusicForTable(TableInfo ti, String tableName) {
+		/**
+		 * This code creates two tables for every table in SQL:
+		 * (i) a table with the exact same name as the SQL table storing the SQL data.
+		 * (ii) a "dirty bits" table that stores the keys in the Cassandra table that are yet to be
+		 * updated in the SQL table (they were written by some other node).
+		 */
+		StringBuilder fields = new StringBuilder();
+		StringBuilder prikey = new StringBuilder();
+		String pfx = "", pfx2 = "";
+		for (int i = 0; i < ti.columns.size(); i++) {
+			fields.append(pfx)
+			      .append(ti.columns.get(i))
+			      .append(" ")
+			      .append(typemap.get(ti.coltype.get(i)));
+			if (ti.iskey.get(i)) {
+				// Primary key column
+				prikey.append(pfx2).append(ti.columns.get(i));
+				pfx2 = ", ";
+			}
+			pfx = ", ";
+		}
+		if (prikey.length()==0) {
+			fields.append(pfx).append(MDBC_PRIMARYKEY_NAME)
+								.append(" ")
+								.append(MDBC_PRIMARYKEY_TYPE);
+			prikey.append("mdbc_cuid");
+		}
+		String cql = String.format("CREATE TABLE IF NOT EXISTS %s.%s (%s, PRIMARY KEY (%s));", music_ns, tableName, fields.toString(), prikey.toString());
+		executeMusicWriteQuery(cql);
+	}
+
+	// **************************************************
+	// Dirty Tables (in MUSIC) methods
+	// **************************************************
+
+	/**
+	 * Create a <i>dirty row</i> table for the real table <i>tableName</i>.  The primary keys columns from the real table are recreated in
+	 * the dirty table, along with a "REPLICA__" column that names the replica that should update it's internal state from MUSIC.
+	 * @param tableName the table to create a "dirty" table for
+	 */
+	@Override
+	public void createDirtyRowTable(TableInfo ti, String tableName) {
+		// create dirtybitsTable at all replicas
+//		for (String repl : allReplicaIds) {
+////			String dirtyRowsTableName = "dirty_"+tableName+"_"+allReplicaIds[i];
+////			String dirtyTableQuery = "CREATE TABLE IF NOT EXISTS "+music_ns+"."+ dirtyRowsTableName+" (dirtyRowKeys text PRIMARY KEY);";
+//			cql = String.format("CREATE TABLE IF NOT EXISTS %s.DIRTY_%s_%s (dirtyRowKeys TEXT PRIMARY KEY);", music_ns, tableName, repl);
+//			executeMusicWriteQuery(cql);
+//		}
+		StringBuilder ddl = new StringBuilder("REPLICA__ TEXT");
+		StringBuilder cols = new StringBuilder("REPLICA__");
+		for (int i = 0; i < ti.columns.size(); i++) {
+			if (ti.iskey.get(i)) {
+				// Only use the primary keys columns in the "Dirty" table
+				ddl.append(", ")
+				   .append(ti.columns.get(i))
+				   .append(" ")
+				   .append(typemap.get(ti.coltype.get(i)));
+				cols.append(", ").append(ti.columns.get(i));
+			}
+		}
+		if(cols.length()==0) {
+			//fixme
+			System.err.println("Create dirty row table found no primary key");
+		}
+		ddl.append(", PRIMARY KEY(").append(cols).append(")");
+		String cql = String.format("CREATE TABLE IF NOT EXISTS %s.DIRTY_%s (%s);", music_ns, tableName, ddl.toString());
+		executeMusicWriteQuery(cql);
+	}
+	/**
+	 * Drop the dirty row table for <i>tableName</i> from MUSIC.
+	 * @param tableName the table being dropped
+	 */
+	@Override
+	public void dropDirtyRowTable(String tableName) {
+		String cql = String.format("DROP TABLE %s.DIRTY_%s;", music_ns, tableName);
+		executeMusicWriteQuery(cql);
+	}
+	/**
+	 * Mark rows as "dirty" in the dirty rows table for <i>tableName</i>.  Rows are marked for all replicas but
+	 * this one (this replica already has the up to date data).
+	 * @param tableName the table we are marking dirty
+	 * @param keys an ordered list of the values being put into the table.  The values that correspond to the tables'
+	 * primary key are copied into the dirty row table.
+	 */
+	@Override
+	public void markDirtyRow(TableInfo ti, String tableName, JSONObject keys) {
+		Object[] keyObj = getObjects(ti,tableName, keys);
+		StringBuilder cols = new StringBuilder("REPLICA__");
+		PreparedQueryObject pQueryObject = null;
+		StringBuilder vals = new StringBuilder("?");
+		List<Object> vallist = new ArrayList<Object>();
+		vallist.add(""); // placeholder for replica
+		for (int i = 0; i < ti.columns.size(); i++) {
+			if (ti.iskey.get(i)) {
+				cols.append(", ").append(ti.columns.get(i));
+				vals.append(", ").append("?");
+				vallist.add(keyObj[i]);
+			}
+		}
+		if(cols.length()==0) {
+			//FIXME
+			System.err.println("markDIrtyRow need to fix primary key");
+		}
+		String cql = String.format("INSERT INTO %s.DIRTY_%s (%s) VALUES (%s);", music_ns, tableName, cols.toString(), vals.toString());
+		/*Session sess = getMusicSession();
+		PreparedStatement ps = getPreparedStatementFromCache(cql);*/
+		String primaryKey;
+		if(ti.hasKey()) {
+			primaryKey = getMusicKeyFromRow(ti,tableName, keys);
+		}
+		else {
+			primaryKey = getMusicKeyFromRowWithoutPrimaryIndexes(ti,tableName, keys);
+		}
+		System.out.println("markDirtyRow: PK value: "+primaryKey);
+		
+		Object pkObj = null;
+		for (int i = 0; i < ti.columns.size(); i++) {
+			if (ti.iskey.get(i)) {
+				pkObj = keyObj[i];
+			}
+		}
+		for (String repl : allReplicaIds) {
+			pQueryObject = new PreparedQueryObject();
+			pQueryObject.appendQueryString(cql);
+			pQueryObject.addValue(tableName);
+			pQueryObject.addValue(repl);
+			pQueryObject.addValue(pkObj);
+			updateMusicDB(tableName, primaryKey, pQueryObject);
+			//if (!repl.equals(myId)) {
+				/*logger.info(EELFLoggerDelegate.applicationLogger,"Executing MUSIC write:"+ cql);
+				vallist.set(0, repl);
+				BoundStatement bound = ps.bind(vallist.toArray());
+				bound.setReadTimeoutMillis(60000);
+				synchronized (sess) {
+					sess.execute(bound);
+				}*/
+			//}
+			
+		}
+	}
+	/**
+	 * Remove the entries from the dirty row (for this replica) that correspond to a set of primary keys
+	 * @param tableName the table we are removing dirty entries from
+	 * @param keys the primary key values to use in the DELETE.  Note: this is *only* the primary keys, not a full table row.
+	 */
+	@Override
+	public void cleanDirtyRow(TableInfo ti, String tableName, JSONObject keys) {
+		Object[] keysObjects = getObjects(ti,tableName,keys);
+		PreparedQueryObject pQueryObject = new PreparedQueryObject();
+		StringBuilder cols = new StringBuilder("REPLICA__=?");
+		List<Object> vallist = new ArrayList<Object>();
+		vallist.add(myId);
+		int n = 0;
+		for (int i = 0; i < ti.columns.size(); i++) {
+			if (ti.iskey.get(i)) {
+				cols.append(" AND ").append(ti.columns.get(i)).append("=?");
+				vallist.add(keysObjects[n++]);
+				pQueryObject.addValue(keysObjects[n++]);
+			}
+		}
+		String cql = String.format("DELETE FROM %s.DIRTY_%s WHERE %s;", music_ns, tableName, cols.toString());
+		logger.debug(EELFLoggerDelegate.applicationLogger,"Executing MUSIC write:"+ cql);
+		pQueryObject.appendQueryString(cql);
+        ReturnType rt = MusicCore.eventualPut(pQueryObject);
+		if(rt.getResult().getResult().toLowerCase().equals("failure")) {
+			System.out.println("Failure while cleanDirtyRow..."+rt.getMessage());
+		}
+		/*Session sess = getMusicSession();
+		PreparedStatement ps = getPreparedStatementFromCache(cql);
+		BoundStatement bound = ps.bind(vallist.toArray());
+		bound.setReadTimeoutMillis(60000);
+		synchronized (sess) {
+			sess.execute(bound);
+		}*/
+	}
+	/**
+	 * Get a list of "dirty rows" for a table.  The dirty rows returned apply only to this replica,
+	 * and consist of a Map of primary key column names and values.
+	 * @param tableName the table we are querying for
+	 * @return a list of maps; each list item is a map of the primary key names and values for that "dirty row".
+	 */
+	@Override
+	public List<Map<String,Object>> getDirtyRows(TableInfo ti, String tableName) {
+		String cql = String.format("SELECT * FROM %s.DIRTY_%s WHERE REPLICA__=?;", music_ns, tableName);
+		ResultSet results = null;
+		logger.debug(EELFLoggerDelegate.applicationLogger,"Executing MUSIC write:"+ cql);
+		
+		/*Session sess = getMusicSession();
+		PreparedStatement ps = getPreparedStatementFromCache(cql);
+		BoundStatement bound = ps.bind(new Object[] { myId });
+		bound.setReadTimeoutMillis(60000);
+		synchronized (sess) {
+			results = sess.execute(bound);
+		}*/
+		PreparedQueryObject pQueryObject = new PreparedQueryObject();
+		pQueryObject.appendQueryString(cql);
+		try {
+			results = MusicCore.get(pQueryObject);
+		} catch (MusicServiceException e) {
+			
+			e.printStackTrace();
+		}
+		
+		ColumnDefinitions cdef = results.getColumnDefinitions();
+		List<Map<String,Object>> list = new ArrayList<Map<String,Object>>();
+		for (Row row : results) {
+			Map<String,Object> objs = new HashMap<String,Object>();
+			for (int i = 0; i < cdef.size(); i++) {
+				String colname = cdef.getName(i).toUpperCase();
+				String coltype = cdef.getType(i).getName().toString().toUpperCase();
+				if (!colname.equals("REPLICA__")) {
+					switch (coltype) {
+					case "BIGINT":
+						objs.put(colname, row.getLong(colname));
+						break;
+					case "BOOLEAN":
+						objs.put(colname, row.getBool(colname));
+						break;
+					case "BLOB":
+						objs.put(colname, row.getString(colname));
+						break;
+					case "DATE":
+						objs.put(colname, row.getString(colname));
+						break;
+					case "DOUBLE":
+						objs.put(colname, row.getDouble(colname));
+						break;
+					case "DECIMAL":
+						objs.put(colname, row.getDecimal(colname));
+						break;
+					case "INT":
+						objs.put(colname, row.getInt(colname));
+						break;
+					case "TIMESTAMP":
+						objs.put(colname, row.getTimestamp(colname));
+						break;
+					case "VARCHAR":
+					default:
+						objs.put(colname, row.getString(colname));
+						break;
+					}
+				}
+			}
+			list.add(objs);
+		}
+		return list;
+	}
+
+	/**
+	 * Drops the named table and its dirty row table (for all replicas) from MUSIC.  The dirty row table is dropped first.
+	 * @param tableName This is the table that has been dropped
+	 */
+	@Override
+	public void clearMusicForTable(String tableName) {
+		dropDirtyRowTable(tableName);
+		String cql = String.format("DROP TABLE %s.%s;", music_ns, tableName);
+		executeMusicWriteQuery(cql);
+	}
+	/**
+	 * This function is called whenever there is a DELETE to a row on a local SQL table, wherein it updates the
+	 * MUSIC/Cassandra tables (both dirty bits and actual data) corresponding to the SQL write. MUSIC propagates
+	 * it to the other replicas.
+	 *
+	 * @param tableName This is the table that has changed.
+	 * @param oldRow This is a copy of the old row being deleted
+	 */
+	@Override
+	public void deleteFromEntityTableInMusic(TableInfo ti, String tableName, JSONObject oldRow) {
+		Object[] objects = getObjects(ti,tableName,oldRow);
+		PreparedQueryObject pQueryObject = new PreparedQueryObject();
+		if (ti.hasKey()) {
+			assert(ti.columns.size() == objects.length);
+		} else {
+			assert(ti.columns.size()+1 == objects.length);
+		}
+
+		StringBuilder where = new StringBuilder();
+		List<Object> vallist = new ArrayList<Object>();
+		String pfx = "";
+		for (int i = 0; i < ti.columns.size(); i++) {
+			if (ti.iskey.get(i)) {
+				where.append(pfx)
+				     .append(ti.columns.get(i))
+				     .append("=?");
+				vallist.add(objects[i]);
+				pQueryObject.addValue(objects[i]);
+				pfx = " AND ";
+			}
+		}
+		if (!ti.hasKey()) {
+			where.append(MDBC_PRIMARYKEY_NAME + "=?");
+			//\FIXME this is wrong, old row is not going to contain the UUID, this needs to be fixed 
+			vallist.add(UUID.fromString((String) objects[0]));
+			pQueryObject.addValue(UUID.fromString((String) objects[0]));
+		}
+
+		String cql = String.format("DELETE FROM %s.%s WHERE %s;", music_ns, tableName, where.toString());
+		logger.error(EELFLoggerDelegate.errorLogger,"Executing MUSIC write:"+ cql);
+		pQueryObject.appendQueryString(cql);
+		
+		/*PreparedStatement ps = getPreparedStatementFromCache(cql);
+		BoundStatement bound = ps.bind(vallist.toArray());
+		bound.setReadTimeoutMillis(60000);
+		Session sess = getMusicSession();
+		synchronized (sess) {
+			sess.execute(bound);
+		}*/
+		String primaryKey = getMusicKeyFromRow(ti,tableName, oldRow);
+
+        updateMusicDB(tableName, primaryKey, pQueryObject);
+
+		// Mark the dirty rows in music for all the replicas but us
+		markDirtyRow(ti,tableName, oldRow);
+	}
+
+	public Set<String> getMusicTableSet(String ns) {
+		Set<String> set = new TreeSet<String>();
+		String cql = String.format("SELECT TABLE_NAME FROM SYSTEM_SCHEMA.TABLES WHERE KEYSPACE_NAME = '%s'", ns);
+		ResultSet rs = executeMusicRead(cql);
+		for (Row row : rs) {
+			set.add(row.getString("TABLE_NAME").toUpperCase());
+		}
+		return set;
+	}
+	/**
+	 * This method is called whenever there is a SELECT on a local SQL table, wherein it first checks the local
+	 * dirty bits table to see if there are any keys in Cassandra whose value has not yet been sent to SQL
+	 * @param tableName This is the table on which the select is being performed
+	 */
+	@Override
+	public void readDirtyRowsAndUpdateDb(DBInterface dbi, String tableName) {
+		// Read dirty rows of this table from Music
+		TableInfo ti = dbi.getTableInfo(tableName);
+		List<Map<String,Object>> objlist = getDirtyRows(ti,tableName);
+		PreparedQueryObject pQueryObject = null;
+		String pre_cql = String.format("SELECT * FROM %s.%s WHERE ", music_ns, tableName);
+		List<Object> vallist = new ArrayList<Object>();
+		StringBuilder sb = new StringBuilder();
+		//\TODO Perform a batch operation instead of each row at a time
+		for (Map<String,Object> map : objlist) {
+			pQueryObject = new PreparedQueryObject();
+			sb.setLength(0);
+			vallist.clear();
+			String pfx = "";
+			for (String key : map.keySet()) {
+				sb.append(pfx).append(key).append("=?");
+				vallist.add(map.get(key));
+				pQueryObject.addValue(map.get(key));
+				pfx = " AND ";
+			}
+			
+			String cql = pre_cql + sb.toString();
+			System.out.println("readDirtyRowsAndUpdateDb: cql: "+cql);
+			pQueryObject.appendQueryString(cql);
+			ResultSet dirtyRows = null;
+			try {
+				//\TODO Why is this an eventual put?, this should be an atomic
+				dirtyRows = MusicCore.get(pQueryObject);
+			} catch (MusicServiceException e) {
+				
+				e.printStackTrace();
+			}
+			/*
+			Session sess = getMusicSession();
+			PreparedStatement ps = getPreparedStatementFromCache(cql);
+			BoundStatement bound = ps.bind(vallist.toArray());
+			bound.setReadTimeoutMillis(60000);
+			ResultSet dirtyRows = null;
+			synchronized (sess) {
+				dirtyRows = sess.execute(bound);
+			}*/
+			List<Row> rows = dirtyRows.all();
+			if (rows.isEmpty()) {
+				// No rows, the row must have been deleted
+				deleteRowFromSqlDb(dbi,tableName, map);
+			} else {
+				for (Row row : rows) {
+					writeMusicRowToSQLDb(dbi,tableName, row);
+				}
+			}
+		}
+	}
+
+	private void deleteRowFromSqlDb(DBInterface dbi, String tableName, Map<String, Object> map) {
+		dbi.deleteRowFromSqlDb(tableName, map);
+		TableInfo ti = dbi.getTableInfo(tableName);
+		List<Object> vallist = new ArrayList<Object>();
+		for (int i = 0; i < ti.columns.size(); i++) {
+			if (ti.iskey.get(i)) {
+				String col = ti.columns.get(i);
+				Object val = map.get(col);
+				vallist.add(val);
+			}
+		}
+		cleanDirtyRow(ti, tableName, new JSONObject(vallist));
+	}
+	/**
+	 * This functions copies the contents of a row in Music into the corresponding row in the SQL table
+	 * @param tableName This is the name of the table in both Music and swl
+	 * @param musicRow This is the row in Music that is being copied into SQL
+	 */
+	private void writeMusicRowToSQLDb(DBInterface dbi, String tableName, Row musicRow) {
+		// First construct the map of columns and their values
+		TableInfo ti = dbi.getTableInfo(tableName);
+		Map<String, Object> map = new HashMap<String, Object>();
+		List<Object> vallist = new ArrayList<Object>();
+		String rowid = tableName;
+		for (String col : ti.columns) {
+			Object val = getValue(musicRow, col);
+			map.put(col, val);
+			if (ti.iskey(col)) {
+				vallist.add(val);
+				rowid += "_" + val.toString();
+			}
+		}
+
+		logger.debug("Blocking rowid: "+rowid);
+		in_progress.add(rowid);			// Block propagation of the following INSERT/UPDATE
+
+		dbi.insertRowIntoSqlDb(tableName, map);
+
+		logger.debug("Unblocking rowid: "+rowid);
+		in_progress.remove(rowid);		// Unblock propagation
+
+//		try {
+//			String sql = String.format("INSERT INTO %s (%s) VALUES (%s);", tableName, fields.toString(), values.toString());
+//			executeSQLWrite(sql);
+//		} catch (SQLException e) {
+//			logger.debug("Insert failed because row exists, do an update");
+//			// TODO - rewrite this UPDATE command should not update key fields
+//			String sql = String.format("UPDATE %s SET (%s) = (%s) WHERE %s", tableName, fields.toString(), values.toString(), where.toString());
+//			try {
+//				executeSQLWrite(sql);
+//			} catch (SQLException e1) {
+//				e1.printStackTrace();
+//			}
+//		}
+
+		ti = dbi.getTableInfo(tableName);
+		cleanDirtyRow(ti, tableName, new JSONObject(vallist));
+
+//		String selectQuery = "select "+ primaryKeyName+" FROM "+tableName+" WHERE "+primaryKeyName+"="+primaryKeyValue+";";
+//		java.sql.ResultSet rs = executeSQLRead(selectQuery);
+//		String dbWriteQuery=null;
+//		try {
+//			if(rs.next()){//this entry is there, do an update
+//				dbWriteQuery = "UPDATE "+tableName+" SET "+columnNameString+" = "+ valueString +"WHERE "+primaryKeyName+"="+primaryKeyValue+";";
+//			}else
+//				dbWriteQuery = "INSERT INTO "+tableName+" VALUES"+valueString+";";
+//			executeSQLWrite(dbWriteQuery);
+//		} catch (SQLException e) {
+//			// ZZTODO Auto-generated catch block
+//			e.printStackTrace();
+//		}
+
+		//clean the music dirty bits table
+//		String dirtyRowIdsTableName = music_ns+".DIRTY_"+tableName+"_"+myId;
+//		String deleteQuery = "DELETE FROM "+dirtyRowIdsTableName+" WHERE dirtyRowKeys=$$"+primaryKeyValue+"$$;";
+//		executeMusicWriteQuery(deleteQuery);
+	}
+	private Object getValue(Row musicRow, String colname) {
+		ColumnDefinitions cdef = musicRow.getColumnDefinitions();
+		DataType colType;
+		try {
+			colType= cdef.getType(colname);
+		}
+		catch(IllegalArgumentException e) {
+			logger.warn("Colname is not part of table metadata: "+e);
+			throw e;
+		}
+		String typeStr = colType.getName().toString().toUpperCase();
+		switch (typeStr) {
+		case "BIGINT":
+			return musicRow.getLong(colname);
+		case "BOOLEAN":
+			return musicRow.getBool(colname);
+		case "BLOB":
+			return musicRow.getString(colname);
+		case "DATE":
+			return musicRow.getString(colname);
+		case "DECIMAL":
+			return musicRow.getDecimal(colname);
+		case "DOUBLE":
+			return musicRow.getDouble(colname);
+		case "SMALLINT":
+		case "INT":
+			return musicRow.getInt(colname);
+		case "TIMESTAMP":
+			return musicRow.getTimestamp(colname);
+		case "UUID":
+			return musicRow.getUUID(colname);
+		default:
+			logger.error(EELFLoggerDelegate.errorLogger, "UNEXPECTED COLUMN TYPE: columname="+colname+", columntype="+typeStr);
+			// fall thru
+		case "VARCHAR":
+			return musicRow.getString(colname);
+		}
+	}
+
+	/**
+	 * This method is called whenever there is an INSERT or UPDATE to a local SQL table, wherein it updates the
+	 * MUSIC/Cassandra tables (both dirty bits and actual data) corresponding to the SQL write. Music propagates
+	 * it to the other replicas.
+	 *
+	 * @param tableName This is the table that has changed.
+	 * @param changedRow This is information about the row that has changed
+	 */
+	@Override
+	public void updateDirtyRowAndEntityTableInMusic(TableInfo ti, String tableName, JSONObject changedRow) {
+		// Build the CQL command
+		Object[] objects = getObjects(ti,tableName,changedRow);
+		StringBuilder fields = new StringBuilder();
+		StringBuilder values = new StringBuilder();
+		String rowid = tableName;
+		Object[] newrow = new Object[objects.length];
+		PreparedQueryObject pQueryObject = new PreparedQueryObject();
+		String pfx = "";
+		int keyoffset=0;
+		for (int i = 0; i < objects.length; i++) {
+			if (!ti.hasKey() && i==0) {
+				//We need to tack on cassandra's uid in place of a primary key
+				fields.append(MDBC_PRIMARYKEY_NAME);
+				values.append("?");
+				newrow[i] = UUID.fromString((String) objects[i]);
+				pQueryObject.addValue(newrow[i]);
+				keyoffset=-1;
+				pfx = ", ";
+				continue;
+			}
+			fields.append(pfx).append(ti.columns.get(i+keyoffset));
+			values.append(pfx).append("?");
+			pfx = ", ";
+			if (objects[i] instanceof byte[]) {
+				// Cassandra doesn't seem to have a Codec to translate a byte[] to a ByteBuffer
+				newrow[i] = ByteBuffer.wrap((byte[]) objects[i]);
+				pQueryObject.addValue(newrow[i]);
+			} else if (objects[i] instanceof Reader) {
+				// Cassandra doesn't seem to have a Codec to translate a Reader to a ByteBuffer either...
+				newrow[i] = ByteBuffer.wrap(readBytesFromReader((Reader) objects[i]));
+				pQueryObject.addValue(newrow[i]);
+			} else {
+				newrow[i] = objects[i];
+				pQueryObject.addValue(newrow[i]);
+			}
+			if (i+keyoffset>=0 && ti.iskey.get(i+keyoffset)) {
+				rowid += "_" + newrow[i].toString();
+			}
+		}
+
+		if (in_progress.contains(rowid)) {
+			// This call to updateDirtyRowAndEntityTableInMusic() was called as a result of a Cassandra -> H2 update; ignore
+			logger.debug(EELFLoggerDelegate.applicationLogger, "updateDirtyRowAndEntityTableInMusic: bypassing MUSIC update on "+rowid);
+			
+		} else {
+			// Update local MUSIC node. Note: in Cassandra you can insert again on an existing key..it becomes an update
+			String cql = String.format("INSERT INTO %s.%s (%s) VALUES (%s);", music_ns, tableName, fields.toString(), values.toString());
+			
+			pQueryObject.appendQueryString(cql);
+			String primaryKey = getMusicKeyFromRow(ti,tableName, changedRow);
+			updateMusicDB(tableName, primaryKey, pQueryObject);
+			
+			/*PreparedStatement ps = getPreparedStatementFromCache(cql);
+			BoundStatement bound = ps.bind(newrow);
+			bound.setReadTimeoutMillis(60000);
+			Session sess = getMusicSession();
+			synchronized (sess) {
+				sess.execute(bound);
+			}*/
+			// Mark the dirty rows in music for all the replicas but us
+			markDirtyRow(ti,tableName, changedRow);
+		}
+	}
+	
+
+
+	private byte[] readBytesFromReader(Reader rdr) {
+		StringBuilder sb = new StringBuilder();
+		try {
+			int ch;
+			while ((ch = rdr.read()) >= 0) {
+				sb.append((char)ch);
+			}
+		} catch (IOException e) {
+			logger.warn("readBytesFromReader: "+e);
+		}
+		return sb.toString().getBytes();
+	}
+
+	protected PreparedStatement getPreparedStatementFromCache(String cql) {
+		// Note: have to hope that the Session never changes!
+		if (!ps_cache.containsKey(cql)) {
+			Session sess = getMusicSession();
+			PreparedStatement ps = sess.prepare(cql);
+			ps_cache.put(cql, ps);
+		}
+		return ps_cache.get(cql);
+	}
+
+	/**
+	 * This method gets a connection to Music
+	 * @return the Cassandra Session to use
+	 */
+	protected Session getMusicSession() {
+		// create cassandra session
+		if (musicSession == null) {
+			logger.info(EELFLoggerDelegate.applicationLogger, "Creating New Music Session");
+			mCon = new MusicConnector(musicAddress);
+			musicSession = mCon.getSession();
+		}
+		return musicSession;
+	}
+
+	/**
+	 * This method executes a write query in Music
+	 * @param cql the CQL to be sent to Cassandra
+	 */
+	protected void executeMusicWriteQuery(String cql) {
+		logger.debug(EELFLoggerDelegate.applicationLogger, "Executing MUSIC write:"+ cql);
+		PreparedQueryObject pQueryObject = new PreparedQueryObject();
+		pQueryObject.appendQueryString(cql);
+		ReturnType rt = MusicCore.eventualPut(pQueryObject);
+		if(rt.getResult().getResult().toLowerCase().equals("failure")) {
+			logger.error(EELFLoggerDelegate.errorLogger, "Failure while eventualPut...: "+rt.getMessage());
+		}
+		/*Session sess = getMusicSession();
+		SimpleStatement s = new SimpleStatement(cql);
+		s.setReadTimeoutMillis(60000);
+		synchronized (sess) {
+			sess.execute(s);
+		}*/
+	}
+
+	/**
+	 * This method executes a read query in Music
+	 * @param cql the CQL to be sent to Cassandra
+	 * @return a ResultSet containing the rows returned from the query
+	 */
+	protected ResultSet executeMusicRead(String cql) {
+		logger.debug(EELFLoggerDelegate.applicationLogger, "Executing MUSIC write:"+ cql);
+		PreparedQueryObject pQueryObject = new PreparedQueryObject();
+		pQueryObject.appendQueryString(cql);
+		ResultSet results = null;
+		try {
+			results = MusicCore.get(pQueryObject);
+		} catch (MusicServiceException e) {
+			
+			e.printStackTrace();
+		}
+		return results;
+		/*Session sess = getMusicSession();
+		synchronized (sess) {
+			return sess.execute(cql);
+		}*/
+	}
+
+	/**
+	 * Returns the default primary key name that this mixin uses
+	 */
+	public String getMusicDefaultPrimaryKeyName() {
+		return MDBC_PRIMARYKEY_NAME;
+	}
+
+	/**
+	 * Return the function for cassandra's primary key generation
+	 */
+	public String generateUniqueKey() {
+		return DatabaseOperations.generateUniqueKey().toString();
+	}
+	
+	@Override
+	public String getMusicKeyFromRowWithoutPrimaryIndexes(TableInfo ti, String table, JSONObject dbRow) {
+		//\TODO this operation is super expensive to perform, both latency and BW 
+		// it is better to add additional where clauses, and have the primary key
+		// to be composed of known columns of the table
+		// Adding this primary indexes would be an additional burden to the developers, which spanner
+		// also does, but otherwise performance is really bad
+		// At least it should have a set of columns that are guaranteed to be unique
+		StringBuilder cqlOperation = new StringBuilder();
+		cqlOperation.append("SELECT * FROM ")
+					.append(music_ns)
+					.append(".")
+					.append(table);
+		ResultSet musicResults = executeMusicRead(cqlOperation.toString());
+		Object[] dbRowObjects = getObjects(ti,table,dbRow);
+		while (!musicResults.isExhausted()) {
+			Row musicRow = musicResults.one();
+			if (rowIs(ti, musicRow, dbRowObjects)) {
+				return ((UUID)getValue(musicRow, MDBC_PRIMARYKEY_NAME)).toString();
+			}
+		}
+		//should never reach here
+		return null;
+	}
+	
+	/**
+	 * Checks to see if this row is in list of database entries
+	 * @param ti
+	 * @param musicRow
+	 * @param dbRow
+	 * @return
+	 */
+	private boolean rowIs(TableInfo ti, Row musicRow, Object[] dbRow) {
+		//System.out.println("Comparing " + musicRow.toString());
+		boolean sameRow=true;
+		for (int i=0; i<ti.columns.size(); i++) {
+			Object val = getValue(musicRow, ti.columns.get(i));
+			if (!dbRow[i].equals(val)) {
+				sameRow=false;
+				break;
+			}
+		}
+		return sameRow;
+	}
+
+	@Override
+	public String getMusicKeyFromRow(TableInfo ti, String tableName, JSONObject row) {
+		List<String> keyCols = ti.getKeyColumns();
+		if(keyCols.isEmpty()){
+			throw new IllegalArgumentException("Table doesn't have defined primary indexes ");
+		}
+		StringBuilder key = new StringBuilder();
+		String pfx = "";
+		for(String keyCol: keyCols) {
+			key.append(pfx);
+			key.append(row.getString(keyCol));
+			pfx = ",";
+		}
+		String keyStr = key.toString();
+		return keyStr;
+	}
+
+	public void updateMusicDB(String tableName, String primaryKey, PreparedQueryObject pQObject) {
+		if(MusicMixin.criticalTables.contains(tableName)) {
+			ReturnType rt = null;
+			try {
+				rt = MusicCore.atomicPut(music_ns, tableName, primaryKey, pQObject, null);
+			} catch (MusicLockingException e) {
+				e.printStackTrace();
+			} catch (MusicServiceException e) {
+                e.printStackTrace();
+            } catch (MusicQueryException e) {
+                e.printStackTrace();
+            }
+            if(rt.getResult().getResult().toLowerCase().equals("failure")) {
+				System.out.println("Failure while critical put..."+rt.getMessage());
+			}
+		} else {
+			ReturnType rt = MusicCore.eventualPut(pQObject);
+			if(rt.getResult().getResult().toLowerCase().equals("failure")) {
+				System.out.println("Failure while critical put..."+rt.getMessage());
+			}
+		}
+	}
+
+
+	private PreparedQueryObject createAppendMtxdIndexToMriQuery(String mriTable, UUID uuid, String table, UUID redoUuid){
+        PreparedQueryObject query = new PreparedQueryObject();
+        StringBuilder appendBuilder = new StringBuilder();
+        appendBuilder.append("UPDATE ")
+                .append(music_ns)
+                .append(".")
+                .append(mriTable)
+                .append(" SET txredolog = txredolog +[('")
+                .append(table)
+                .append("',")
+                .append(redoUuid)
+                .append(")] WHERE rangeid = ")
+                .append(uuid)
+                .append(";");
+        query.appendQueryString(appendBuilder.toString());
+        return query;
+    }
+
+    protected String createAndAssignLock(String fullyQualifiedKey, DatabasePartition partition) throws MDBCServiceException {
+        MriReference mriIndex = partition.getMusicRangeInformationIndex();
+	    String lockId;
+        lockId = MusicCore.createLockReference(fullyQualifiedKey);
+        //\TODO Handle better failures to acquire locks
+        ReturnType lockReturn;
+        try {
+            lockReturn = MusicCore.acquireLock(fullyQualifiedKey,lockId);
+        } catch (MusicLockingException e) {
+            logger.error(EELFLoggerDelegate.errorLogger, "Lock was not acquire correctly for key "+fullyQualifiedKey);
+            throw new MDBCServiceException("Lock was not acquire correctly for key "+fullyQualifiedKey);
+        } catch (MusicServiceException e) {
+            logger.error(EELFLoggerDelegate.errorLogger, "Error in music, when locking key: "+fullyQualifiedKey);
+            throw new MDBCServiceException("Error in music, when locking: "+fullyQualifiedKey);
+        } catch (MusicQueryException e) {
+            logger.error(EELFLoggerDelegate.errorLogger, "Error in executing query music, when locking key: "+fullyQualifiedKey);
+            throw new MDBCServiceException("Error in executing query music, when locking: "+fullyQualifiedKey);
+        }
+        //\TODO this is wrong, we should have a better way to obtain a lock forcefully, clean the queue and obtain the lock
+        if(lockReturn.getResult().compareTo(ResultType.SUCCESS) != 0 ) {
+            try {
+            	MusicCore.forciblyReleaseLock(fullyQualifiedKey,lockId);
+                CassaLockStore lockingServiceHandle = MusicCore.getLockingServiceHandle();
+                CassaLockStore.LockObject lockOwner = lockingServiceHandle.peekLockQueue(music_ns, partition.getMusicRangeInformationTable(), mriIndex.index.toString());
+                while(lockOwner.lockRef != lockId) {
+                	MusicCore.forciblyReleaseLock(fullyQualifiedKey, lockOwner.lockRef);
+                	try {
+                        lockOwner = lockingServiceHandle.peekLockQueue(music_ns, partition.getMusicRangeInformationTable(), mriIndex.index.toString());
+                    } catch(NullPointerException e){
+                       //Ignore null pointer exception
+                        lockId = MusicCore.createLockReference(fullyQualifiedKey);
+                        break;
+                    }
+                }
+                lockReturn = MusicCore.acquireLock(fullyQualifiedKey,lockId);
+
+            } catch (MusicLockingException e) {
+                throw new MDBCServiceException("Could not lock the corresponding lock");
+            } catch (MusicServiceException e) {
+                logger.error(EELFLoggerDelegate.errorLogger, "Error in music, when locking key: "+fullyQualifiedKey);
+                throw new MDBCServiceException("Error in music, when locking: "+fullyQualifiedKey);
+            } catch (MusicQueryException e) {
+                logger.error(EELFLoggerDelegate.errorLogger, "Error in executing query music, when locking key: "+fullyQualifiedKey);
+                throw new MDBCServiceException("Error in executing query music, when locking: "+fullyQualifiedKey);
+            }
+        }
+        if(lockReturn.getResult().compareTo(ResultType.SUCCESS) != 0 ) {
+            throw new MDBCServiceException("Could not lock the corresponding lock");
+        }
+        //TODO: Java newbie here, verify that this lockId is actually assigned to the global DatabasePartition in the StateManager instance
+        partition.setLockId(lockId);
+        return lockId;
+    }
+
+
+
+    protected void appendIndexToMri(String lockId, UUID commitId, UUID MriIndex) throws MDBCServiceException{
+        PreparedQueryObject appendQuery = createAppendMtxdIndexToMriQuery(musicRangeInformationTableName, MriIndex, musicTxDigestTableName, commitId);
+        ReturnType returnType = MusicCore.criticalPut(music_ns, musicRangeInformationTableName, MriIndex.toString(), appendQuery, lockId, null);
+        if(returnType.getResult().compareTo(ResultType.SUCCESS) != 0 ){
+            logger.error(EELFLoggerDelegate.errorLogger, "Error when executing append operation with return type: "+returnType.getMessage());
+            throw new MDBCServiceException("Error when executing append operation with return type: "+returnType.getMessage());
+        }
+    }
+
+	@Override
+	public void commitLog(DBInterface dbi, DatabasePartition partition, HashMap<Range,StagingTable> transactionDigest, String txId ,TxCommitProgress progressKeeper) throws MDBCServiceException{
+		MriReference mriIndex = partition.getMusicRangeInformationIndex();
+		if(mriIndex==null) {
+			//\TODO Fetch MriIndex from the Range Information Table
+			throw new MDBCServiceException("TIT Index retrieval not yet implemented");
+		}
+        String fullyQualifiedMriKey = music_ns+"."+ mriIndex.table+"."+mriIndex.index.toString();
+		//0. See if reference to lock was already created
+		String lockId = partition.getLockId();
+		if(lockId == null || lockId.isEmpty()) {
+            lockId = createAndAssignLock(fullyQualifiedMriKey,partition);
+		}
+
+		UUID commitId;
+		//Generate a local commit id
+        if(progressKeeper.containsTx(txId)) {
+            commitId = progressKeeper.getCommitId(txId);
+        }
+        else{
+            logger.error(EELFLoggerDelegate.errorLogger, "Tx with id "+txId+" was not created in the TxCommitProgress ");
+            throw new MDBCServiceException("Tx with id "+txId+" was not created in the TxCommitProgress ");
+        }
+        //Add creation type of transaction digest
+
+		//1. Push new row to RRT and obtain its index
+        String serializedTransactionDigest;
+        try {
+            serializedTransactionDigest = MDBCUtils.toString(transactionDigest);
+        } catch (IOException e) {
+            throw new MDBCServiceException("Failed to serialized transaction digest with error "+e.toString());
+        }
+        MusicTxDigestId digestId = new MusicTxDigestId(commitId);
+        addTxDigest(musicTxDigestTableName, digestId, serializedTransactionDigest);
+        //2. Save RRT index to RQ
+		if(progressKeeper!= null) {
+			progressKeeper.setRecordId(txId,digestId);
+		}
+		//3. Append RRT index into the corresponding TIT row array
+		appendToRedoLog(mriIndex,partition,digestId);
+    }
+
+    /**
+     * @param tableName
+     * @param string
+     * @param rowValues
+     * @return
+     */
+	@SuppressWarnings("unused")
+	private String getUid(String tableName, String string, Object[] rowValues) {
+		// 
+		// Update local MUSIC node. Note: in Cassandra you can insert again on an existing key..it becomes an update
+		String cql = String.format("SELECT * FROM %s.%s;", music_ns, tableName);
+		PreparedStatement ps = getPreparedStatementFromCache(cql);
+		BoundStatement bound = ps.bind();
+		bound.setReadTimeoutMillis(60000);
+		Session sess = getMusicSession();
+		ResultSet rs;
+		synchronized (sess) {
+			rs = sess.execute(bound);
+		}
+
+		//should never reach here
+		logger.error(EELFLoggerDelegate.errorLogger, "Could not find the row in the primary key");
+		return null;
+	}
+
+	@Override
+	public Object[] getObjects(TableInfo ti, String tableName, JSONObject row) {
+		// \FIXME: we may need to add the primary key of the row if it was autogenerated by MUSIC
+		List<String> cols = ti.columns;
+		int size = cols.size();
+		boolean hasDefault = false;
+		if(row.has(getMusicDefaultPrimaryKeyName())) {
+			size++;
+			hasDefault = true;
+		}
+
+		Object[] objects = new Object[size];
+		int idx = 0;
+		if(hasDefault) {
+			objects[idx++] = row.getString(getMusicDefaultPrimaryKeyName());
+		}
+		for(String col : ti.columns) {
+			objects[idx]=row.get(col);
+		}
+		return objects;
+	}
+
+    @Override
+    public MusicRangeInformationRow getMusicRangeInformation(DatabasePartition partition) throws MDBCServiceException {
+	    //TODO: verify that lock id is valid before calling the database operations function
+        MriReference reference = partition.getMusicRangeInformationIndex();
+        return DatabaseOperations.getMriRow(music_ns,reference.table,reference.index,partition.getLockId());
+    }
+
+    @Override
+    public DatabasePartition createMusicRangeInformation(MusicRangeInformationRow info) throws MDBCServiceException {
+	    DatabasePartition newPartition = new DatabasePartition(info.partition.ranges,info.index,
+                musicRangeInformationTableName,null,musicTxDigestTableName);
+        String fullyQualifiedMriKey = music_ns+"."+ musicRangeInformationTableName+"."+info.index.toString();
+        String lockId = createAndAssignLock(fullyQualifiedMriKey,newPartition);
+        DatabaseOperations.createEmptyMriRow(music_ns,musicRangeInformationTableName,info.metricProcessId,lockId,info.partition.ranges);
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void appendToRedoLog(MriReference mriRowId, DatabasePartition partition, MusicTxDigestId newRecord) throws MDBCServiceException {
+		PreparedQueryObject appendQuery = createAppendMtxdIndexToMriQuery(musicRangeInformationTableName, mriRowId.index, musicTxDigestTableName, newRecord.tablePrimaryKey);
+		ReturnType returnType = MusicCore.criticalPut(music_ns, musicRangeInformationTableName, mriRowId.index.toString(), appendQuery, partition.getLockId(), null);
+		if(returnType.getResult().compareTo(ResultType.SUCCESS) != 0 ){
+			logger.error(EELFLoggerDelegate.errorLogger, "Error when executing append operation with return type: "+returnType.getMessage());
+			throw new MDBCServiceException("Error when executing append operation with return type: "+returnType.getMessage());
+		}
+    }
+
+    @Override
+    public void addTxDigest(String musicTxDigestTable, MusicTxDigestId newId, String transactionDigest) throws MDBCServiceException {
+	    DatabaseOperations.createTxDigestRow(music_ns,musicTxDigestTable,newId,transactionDigest);
+    }
+
+    @Override
+    public PartitionInformation getPartitionInformation(DatabasePartition partition) throws MDBCServiceException {
+	    //\TODO We may want to cache this information to avoid going to the database to obtain this simple information
+        MusicRangeInformationRow row = getMusicRangeInformation(partition);
+        return row.partition;
+    }
+
+    @Override
+    public HashMap<Range,StagingTable> getTransactionDigest(MusicTxDigestId id) throws MDBCServiceException {
+	    return DatabaseOperations.getTransactionDigest(music_ns, musicTxDigestTableName, id);
+    }
+
+    @Override
+    public void own(List<Range> ranges){
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void appendRange(String rangeId, List<Range> ranges){
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    public void relinquish(String ownerId, String rangeId){
+        throw new UnsupportedOperationException();
+    }
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/mixins/DBInterface.java b/mdbc-server/src/main/java/org/onap/music/mdbc/mixins/DBInterface.java
new file mode 100755
index 0000000..358287f
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/mixins/DBInterface.java
@@ -0,0 +1,111 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc.mixins;
+
+import java.sql.ResultSet;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+
+import org.onap.music.mdbc.Range;
+import org.onap.music.mdbc.TableInfo;
+import org.onap.music.mdbc.tables.StagingTable;
+
+/**
+ * This Interface defines the methods that MDBC needs in order to mirror data to/from a Database instance.
+ *
+ * @author Robert P. Eby
+ */
+public interface DBInterface {
+	/**
+	 * Get the name of this DBnterface mixin object.
+	 * @return the name
+	 */
+	String getMixinName();
+	/**
+	 * Do what is needed to close down the database connection.
+	 */
+	void close();
+	/**
+	 * Get a set of the table names in the database. The table names should be returned in UPPER CASE.
+	 * @return the set
+	 */
+	Set<String> getSQLTableSet();
+	/**
+	 * Return the name of the database that the driver is connected to
+	 * @return
+	 */
+	String getDatabaseName();
+	/**
+	 * Return a TableInfo object for the specified table.
+	 * @param tableName the table to look up
+	 * @return a TableInfo object containing the info we need, or null if the table does not exist
+	 */
+	TableInfo getTableInfo(String tableName);
+	/**
+	 * This method should create triggers in the database to be called for each row after every INSERT,
+	 * UPDATE and DELETE, and before every SELECT.
+	 * @param tableName this is the table on which triggers are being created.
+	 */
+	void createSQLTriggers(String tableName);
+	/**
+	 * This method should drop all triggers previously created in the database for the table.
+	 * @param tableName this is the table on which triggers are being dropped.
+	 */
+	void dropSQLTriggers(String tableName);
+	/**
+	 * This method inserts a row into the SQL database, defined via a map of column names and values.
+	 * @param tableName the table to insert the row into
+	 * @param map map of column names &rarr; values to use for the keys when inserting the row
+	 */
+	void insertRowIntoSqlDb(String tableName, Map<String, Object> map);
+	/**
+	 * This method deletes a row from the SQL database, defined via a map of column names and values.
+	 * @param tableName the table to delete the row from
+	 * @param map map of column names &rarr; values to use for the keys when deleting the row
+	 */
+	void deleteRowFromSqlDb(String tableName, Map<String, Object> map);
+	/**
+	 * Code to be run within the DB driver before a SQL statement is executed.  This is where tables
+	 * can be synchronized before a SELECT, for those databases that do not support SELECT triggers.
+	 * @param sql the SQL statement that is about to be executed
+	 */
+	void preStatementHook(final String sql);
+	/**
+	 * Code to be run within the DB driver after a SQL statement has been executed.  This is where remote
+	 * statement actions can be copied back to Cassandra/MUSIC.
+	 * @param sql the SQL statement that was executed
+	 * @param transactionDigest
+	 */
+	void postStatementHook(final String sql,Map<Range,StagingTable> transactionDigest);
+	/**
+	 * This method executes a read query in the SQL database.  Methods that call this method should be sure
+	 * to call resultset.getStatement().close() when done in order to free up resources.
+	 * @param sql the query to run
+	 * @return a ResultSet containing the rows returned from the query
+	 */
+	ResultSet executeSQLRead(String sql);
+	
+	void synchronizeData(String tableName);
+	
+	List<String> getReservedTblNames();
+	
+	String getPrimaryKey(String sql, String tableName);
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/mixins/MixinFactory.java b/mdbc-server/src/main/java/org/onap/music/mdbc/mixins/MixinFactory.java
new file mode 100755
index 0000000..3d85a27
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/mixins/MixinFactory.java
@@ -0,0 +1,144 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc.mixins;
+
+import java.lang.reflect.Constructor;
+import java.lang.reflect.InvocationTargetException;
+import java.sql.Connection;
+import java.util.Properties;
+
+import org.onap.music.logging.EELFLoggerDelegate;
+import org.onap.music.mdbc.DatabasePartition;
+import org.onap.music.mdbc.MusicSqlManager;
+
+/**
+ * This class is used to construct instances of Mixins that implement either the {@link org.onap.music.mdbc.mixins.DBInterface}
+ * interface, or the {@link org.onap.music.mdbc.mixins.MusicInterface} interface. The Mixins are searched for in the CLASSPATH.
+ *
+ * @author Robert P. Eby
+ */
+public class MixinFactory {
+	private static EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(MixinFactory.class);
+
+	// Only static methods...
+	private MixinFactory(){}
+
+	/**
+	 * Look for a class in CLASSPATH that implements the {@link DBInterface} interface, and has the mixin name <i>name</i>.
+	 * If one is found, construct and return it, using the other arguments for the constructor.
+	 * @param name the name of the Mixin
+	 * @param msm the MusicSqlManager to use as an argument to the constructor
+	 * @param url the URL to use as an argument to the constructor
+	 * @param conn the underlying JDBC Connection
+	 * @param info the Properties to use as an argument to the constructor
+	 * @return the newly constructed DBInterface, or null if one cannot be found.
+	 */
+	public static DBInterface createDBInterface(String name, MusicSqlManager msm, String url, Connection conn, Properties info) {
+		for (Class<?> cl : Utils.getClassesImplementing(DBInterface.class)) {
+			try {
+				Constructor<?> con = cl.getConstructor();
+				if (con != null) {
+					DBInterface dbi = (DBInterface) con.newInstance();
+					String miname = dbi.getMixinName();
+					logger.info(EELFLoggerDelegate.applicationLogger,"Checking "+miname);
+					if (miname.equalsIgnoreCase(name)) {
+						con = cl.getConstructor(MusicSqlManager.class, String.class, Connection.class, Properties.class);
+						if (con != null) {
+							logger.info(EELFLoggerDelegate.applicationLogger,"Found match: "+miname);
+							return (DBInterface) con.newInstance(msm, url, conn, info);
+						}
+					}
+				}
+			} catch (Exception e) {
+				logger.error(EELFLoggerDelegate.errorLogger,"createDBInterface: "+e);
+			}
+		}
+		return null;
+	}
+	/**
+	 * Look for a class in CLASSPATH that implements the {@link MusicInterface} interface, and has the mixin name <i>name</i>.
+	 * If one is found, construct and return it, using the other arguments for the constructor.
+	 * @param name the name of the Mixin
+	 * @param msm the MusicSqlManager to use as an argument to the constructor
+	 * @param dbi the DBInterface to use as an argument to the constructor
+	 * @param url the URL to use as an argument to the constructor
+	 * @param info the Properties to use as an argument to the constructor
+	 * @return the newly constructed MusicInterface, or null if one cannot be found.
+	 */
+	public static MusicInterface createMusicInterface(String name, String url, Properties info) {
+		for (Class<?> cl : Utils.getClassesImplementing(MusicInterface.class)) {
+			try {
+				Constructor<?> con = cl.getConstructor();
+				if (con != null) { //TODO: is this necessary? Don't think it could ever be null?
+					MusicInterface mi = (MusicInterface) con.newInstance();
+					String miname = mi.getMixinName();
+					logger.info(EELFLoggerDelegate.applicationLogger, "Checking "+miname);
+					if (miname.equalsIgnoreCase(name)) {
+						con = cl.getConstructor(String.class, Properties.class);
+						if (con != null) {
+							logger.info(EELFLoggerDelegate.applicationLogger,"Found match: "+miname);
+							return (MusicInterface) con.newInstance(url, info);
+						}
+					}
+				}
+			} catch (InvocationTargetException e) {
+				logger.error(EELFLoggerDelegate.errorLogger,"createMusicInterface: "+e.getCause().toString());
+			}
+			catch (Exception e) {
+				logger.error(EELFLoggerDelegate.errorLogger,"createMusicInterface: "+e);
+			}
+		}
+		return null;
+	}
+
+	// Unfortunately, this version does not work when MDBC is built as a JBoss module,
+	// where something funny is happening with the classloaders
+//	@SuppressWarnings("unused")
+//	private static List<Class<?>> getClassesImplementingOld(Class<?> implx) {
+//		List<Class<?>> list = new ArrayList<Class<?>>();
+//		try {
+//			ClassLoader cldr = MixinFactory.class.getClassLoader();
+//			while (cldr != null) {
+//				ClassPath cp = ClassPath.from(cldr);
+//				for (ClassPath.ClassInfo x : cp.getAllClasses()) {
+//					if (x.toString().startsWith("com.att.")) {	// mixins must have a package starting with com.att.
+//						Class<?> cl = x.load();
+//						if (impl(cl, implx)) {
+//							list.add(cl);
+//						}
+//					}
+//				}
+//				cldr = cldr.getParent();
+//			}
+//		} catch (IOException e) {
+//			// ignore
+//		}
+//		return list;
+//	}
+	static boolean impl(Class<?> cl, Class<?> imp) {
+		for (Class<?> c2 : cl.getInterfaces()) {
+			if (c2 == imp) {
+				return true;
+			}
+		}
+		Class<?> c2 = cl.getSuperclass();
+		return (c2 != null) ? impl(c2, imp) : false;
+	}
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/mixins/MusicConnector.java b/mdbc-server/src/main/java/org/onap/music/mdbc/mixins/MusicConnector.java
new file mode 100755
index 0000000..59e3581
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/mixins/MusicConnector.java
@@ -0,0 +1,143 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc.mixins;
+
+import java.net.InetAddress;
+import java.net.NetworkInterface;
+import java.net.SocketException;
+import java.util.ArrayList;
+import java.util.Enumeration;
+import java.util.Iterator;
+import java.util.List;
+
+import org.onap.music.logging.EELFLoggerDelegate;
+import com.datastax.driver.core.Cluster;
+import com.datastax.driver.core.HostDistance;
+import com.datastax.driver.core.Metadata;
+import com.datastax.driver.core.PoolingOptions;
+import com.datastax.driver.core.Session;
+import com.datastax.driver.core.exceptions.NoHostAvailableException;
+import org.onap.music.main.MusicCore;
+
+/**
+ * This class allows for management of the Cassandra Cluster and Session objects.
+ *
+ * @author Robert P. Eby
+ */
+public class MusicConnector {
+	
+	private EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(MusicConnector.class);
+
+	private Session session;
+	private Cluster cluster;
+
+	protected MusicConnector() {
+		//to defeat instantiation since this is a singleton
+	}
+
+	public MusicConnector(String address) {
+//		connectToCassaCluster(address);
+		connectToMultipleAddresses(address);
+	}
+
+	public Session getSession() {
+		return session;
+	}
+
+	public void close() {
+		if (session != null)
+			session.close();
+		session = null;
+		if (cluster != null)
+			cluster.close();
+		cluster = null;
+	}
+	
+	private List<String> getAllPossibleLocalIps(){
+		ArrayList<String> allPossibleIps = new ArrayList<String>();
+		try {
+			Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces();
+			while(en.hasMoreElements()){
+			    NetworkInterface ni=(NetworkInterface) en.nextElement();
+			    Enumeration<InetAddress> ee = ni.getInetAddresses();
+			    while(ee.hasMoreElements()) {
+			        InetAddress ia= (InetAddress) ee.nextElement();
+			        allPossibleIps.add(ia.getHostAddress());
+			    }
+			 }
+		} catch (SocketException e) {
+			e.printStackTrace();
+		}
+		return allPossibleIps;
+	}
+	
+	private void connectToMultipleAddresses(String address) {
+		MusicCore.getDSHandle(address);
+	/*
+	PoolingOptions poolingOptions =
+		new PoolingOptions()
+    	.setConnectionsPerHost(HostDistance.LOCAL,  4, 10)
+    	.setConnectionsPerHost(HostDistance.REMOTE, 2, 4);
+	String[] music_hosts = address.split(",");
+	if (cluster == null) {
+		logger.info(EELFLoggerDelegate.applicationLogger,"Initializing MUSIC Client with endpoints "+address);
+		cluster = Cluster.builder()
+			.withPort(9042)
+			.withPoolingOptions(poolingOptions)
+			.withoutMetrics()
+			.addContactPoints(music_hosts)
+			.build();
+		Metadata metadata = cluster.getMetadata();
+		logger.info(EELFLoggerDelegate.applicationLogger,"Connected to cluster:"+metadata.getClusterName()+" at address:"+address);
+		
+	}
+	session = cluster.connect();
+	 */
+	}
+
+	@SuppressWarnings("unused")
+	private void connectToCassaCluster(String address) {
+		PoolingOptions poolingOptions =
+			new PoolingOptions()
+	    	.setConnectionsPerHost(HostDistance.LOCAL,  4, 10)
+	    	.setConnectionsPerHost(HostDistance.REMOTE, 2, 4);
+		Iterator<String> it = getAllPossibleLocalIps().iterator();
+		logger.info(EELFLoggerDelegate.applicationLogger,"Iterating through possible ips:"+getAllPossibleLocalIps());
+		
+		while (it.hasNext()) {
+			try {
+				cluster = Cluster.builder()
+					.withPort(9042)
+					.withPoolingOptions(poolingOptions)
+					.withoutMetrics()
+					.addContactPoint(address)
+					.build();
+				//cluster.getConfiguration().getSocketOptions().setReadTimeoutMillis(Integer.MAX_VALUE);
+				Metadata metadata = cluster.getMetadata();
+				logger.info(EELFLoggerDelegate.applicationLogger,"Connected to cluster:"+metadata.getClusterName()+" at address:"+address);
+				
+				session = cluster.connect();
+				break;
+			} catch (NoHostAvailableException e) {
+				address = it.next();
+			}
+		}
+	}
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/mixins/MusicInterface.java b/mdbc-server/src/main/java/org/onap/music/mdbc/mixins/MusicInterface.java
new file mode 100755
index 0000000..6a1219c
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/mixins/MusicInterface.java
@@ -0,0 +1,192 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc.mixins;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.UUID;
+
+import org.json.JSONObject;
+
+import org.onap.music.exceptions.MDBCServiceException;
+import org.onap.music.mdbc.DatabasePartition;
+import org.onap.music.mdbc.Range;
+import org.onap.music.mdbc.TableInfo;
+import org.onap.music.mdbc.tables.PartitionInformation;
+import org.onap.music.mdbc.tables.MusicTxDigestId;
+import org.onap.music.mdbc.tables.StagingTable;
+import org.onap.music.mdbc.tables.MriReference;
+import org.onap.music.mdbc.tables.MusicRangeInformationRow;
+import org.onap.music.mdbc.tables.TxCommitProgress;
+
+/**
+ * This Interface defines the methods that MDBC needs for a class to provide access to the persistence layer of MUSIC.
+ *
+ * @author Robert P. Eby
+ */
+public interface MusicInterface {	
+	/**
+	 * This function is used to created all the required data structures, both local  
+	 * \TODO Check if this function is required in the MUSIC interface or could be just created on the constructor
+	 */
+	void initializeMetricDataStructures() throws MDBCServiceException;
+	/**
+	 * Get the name of this MusicInterface mixin object.
+	 * @return the name
+	 */
+	String getMixinName();
+	/**
+	 * Gets the name of this MusicInterface mixin's default primary key name
+	 * @return default primary key name
+	 */
+	String getMusicDefaultPrimaryKeyName();
+	/**
+	 * generates a key or placeholder for what is required for a primary key
+	 * @return a primary key
+	 */
+	String generateUniqueKey();
+
+	/**
+	 * Find the key used with Music for a table that was created without a primary index
+	 * Name is long to avoid developers using it. For cassandra performance in this operation
+	 * is going to be really bad
+	 * @param ti information of the table in the SQL layer
+	 * @param table name of the table
+	 * @param dbRow row obtained from the SQL layer
+	 * @return key associated with the row
+	 */
+	String getMusicKeyFromRowWithoutPrimaryIndexes(TableInfo ti, String table, JSONObject dbRow);
+	/**
+	 * Do what is needed to close down the MUSIC connection.
+	 */
+	void close();
+	/**
+	 * This method creates a keyspace in Music/Cassandra to store the data corresponding to the SQL tables.
+	 * The keyspace name comes from the initialization properties passed to the JDBC driver.
+	 */
+	void createKeyspace();
+	/**
+	 * This method performs all necessary initialization in Music/Cassandra to store the table <i>tableName</i>.
+	 * @param tableName the table to initialize MUSIC for
+	 */
+	void initializeMusicForTable(TableInfo ti, String tableName);
+	/**
+	 * Create a <i>dirty row</i> table for the real table <i>tableName</i>.  The primary keys columns from the real table are recreated in
+	 * the dirty table, along with a "REPLICA__" column that names the replica that should update it's internal state from MUSIC.
+	 * @param tableName the table to create a "dirty" table for
+	 */
+	void createDirtyRowTable(TableInfo ti, String tableName);
+	/**
+	 * Drop the dirty row table for <i>tableName</i> from MUSIC.
+	 * @param tableName the table being dropped
+	 */
+	void dropDirtyRowTable(String tableName);
+	/**
+	 * Drops the named table and its dirty row table (for all replicas) from MUSIC.  The dirty row table is dropped first.
+	 * @param tableName This is the table that has been dropped
+	 */
+	void clearMusicForTable(String tableName);
+	/**
+	 * Mark rows as "dirty" in the dirty rows table for <i>tableName</i>.  Rows are marked for all replicas but
+	 * this one (this replica already has the up to date data).
+	 * @param tableName the table we are marking dirty
+	 * @param keys an ordered list of the values being put into the table.  The values that correspond to the tables'
+	 * primary key are copied into the dirty row table.
+	 */
+	void markDirtyRow(TableInfo ti, String tableName, JSONObject keys);
+	/**
+	 * Remove the entries from the dirty row (for this replica) that correspond to a set of primary keys
+	 * @param tableName the table we are removing dirty entries from
+	 * @param keys the primary key values to use in the DELETE.  Note: this is *only* the primary keys, not a full table row.
+	 */
+	void cleanDirtyRow(TableInfo ti, String tableName, JSONObject keys);
+	/**
+	 * Get a list of "dirty rows" for a table.  The dirty rows returned apply only to this replica,
+	 * and consist of a Map of primary key column names and values.
+	 * @param tableName the table we are querying for
+	 * @return a list of maps; each list item is a map of the primary key names and values for that "dirty row".
+	 */
+	List<Map<String,Object>> getDirtyRows(TableInfo ti, String tableName);
+	/**
+	 * This method is called whenever there is a DELETE to a row on a local SQL table, wherein it updates the
+	 * MUSIC/Cassandra tables (both dirty bits and actual data) corresponding to the SQL write. MUSIC propagates
+	 * it to the other replicas.
+	 * @param tableName This is the table that has changed.
+	 * @param oldRow This is a copy of the old row being deleted
+	 */
+	void deleteFromEntityTableInMusic(TableInfo ti,String tableName, JSONObject oldRow);
+	/**
+	 * This method is called whenever there is a SELECT on a local SQL table, wherein it first checks the local
+	 * dirty bits table to see if there are any rows in Cassandra whose value needs to be copied to the local SQL DB.
+	 * @param tableName This is the table on which the select is being performed
+	 */
+	void readDirtyRowsAndUpdateDb(DBInterface dbi, String tableName);
+	/**
+	 * This method is called whenever there is an INSERT or UPDATE to a local SQL table, wherein it updates the
+	 * MUSIC/Cassandra tables (both dirty bits and actual data) corresponding to the SQL write. Music propagates
+	 * it to the other replicas.
+	 * @param tableName This is the table that has changed.
+	 * @param changedRow This is information about the row that has changed
+	 */
+	void updateDirtyRowAndEntityTableInMusic(TableInfo ti, String tableName, JSONObject changedRow);
+	
+	Object[] getObjects(TableInfo ti, String tableName, JSONObject row);
+	/**
+	 * Returns the primary key associated with the given row 
+	 * @param ti info of the table that is associated with the row
+	 * @param tableName name of the table that contains the row
+	 * @param changedRow row that is going to contain the information associated with the primary key
+	 * @return primary key of the row
+	 */
+	String getMusicKeyFromRow(TableInfo ti, String tableName, JSONObject changedRow);
+
+	/**
+	 * Commits the corresponding REDO-log into MUSIC
+	 *
+	 * @param dbi, the database interface use in the local SQL cache, where the music interface is being used
+	 * @param partition
+	 * @param transactionDigest digest of the transaction that is being committed into the Redo log in music. It has to be a HashMap, because it is required to be serializable
+	 * @param txId id associated with the log being send
+	 * @param progressKeeper data structure that is used to handle to detect failures, and know what to do
+	 * @throws MDBCServiceException
+	 */
+	void commitLog(DBInterface dbi, DatabasePartition partition, HashMap<Range,StagingTable> transactionDigest, String txId,TxCommitProgress progressKeeper) throws MDBCServiceException;
+	
+	MusicRangeInformationRow getMusicRangeInformation(DatabasePartition partition) throws MDBCServiceException;
+
+	DatabasePartition createMusicRangeInformation(MusicRangeInformationRow info) throws MDBCServiceException;
+	
+	void appendToRedoLog(MriReference mriRowId, DatabasePartition partition, MusicTxDigestId newRecord) throws MDBCServiceException;
+	
+	void addTxDigest(String musicTxDigestTable, MusicTxDigestId newId, String transactionDigest) throws MDBCServiceException;
+
+	PartitionInformation getPartitionInformation(DatabasePartition partition) throws MDBCServiceException;
+	
+	HashMap<Range,StagingTable> getTransactionDigest(MusicTxDigestId id) throws MDBCServiceException;
+
+	void own(List<Range> ranges);
+
+	void appendRange(String rangeId, List<Range> ranges);
+
+	void relinquish(String ownerId, String rangeId);
+
+}
+
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/mixins/MusicMixin.java b/mdbc-server/src/main/java/org/onap/music/mdbc/mixins/MusicMixin.java
new file mode 100644
index 0000000..46d41d4
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/mixins/MusicMixin.java
@@ -0,0 +1,252 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc.mixins;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.*;
+
+import org.onap.music.mdbc.LockId;
+import org.json.JSONObject;
+import org.onap.music.exceptions.MusicLockingException;
+
+import org.onap.music.exceptions.MDBCServiceException;
+import org.onap.music.mdbc.DatabasePartition;
+import org.onap.music.mdbc.Range;
+import org.onap.music.mdbc.TableInfo;
+import org.onap.music.mdbc.tables.PartitionInformation;
+import org.onap.music.mdbc.tables.MusicTxDigestId;
+import org.onap.music.mdbc.tables.StagingTable;
+import org.onap.music.mdbc.tables.MriReference;
+import org.onap.music.mdbc.tables.MusicRangeInformationRow;
+import org.onap.music.mdbc.tables.TxCommitProgress;
+
+import org.onap.music.main.MusicCore;
+
+/**
+
+ *
+ */
+public class MusicMixin implements MusicInterface {
+
+	public static Map<Integer, Set<String>> currentLockMap = new HashMap<>();
+	public static List<String> criticalTables = new ArrayList<>();
+
+	@Override
+	public String getMixinName() {
+		// 
+		return null;
+	}
+
+	@Override
+	public String getMusicDefaultPrimaryKeyName() {
+		// 
+		return null;
+	}
+
+	@Override
+	public String generateUniqueKey() {
+		// 
+		return null;
+	}
+
+	@Override
+	public String getMusicKeyFromRow(TableInfo ti, String table, JSONObject dbRow) {
+		// 
+		return null;
+	}
+
+	@Override
+	public void close() {
+		// 
+
+	}
+
+	@Override
+	public void createKeyspace() {
+		// 
+
+	}
+
+	@Override
+	public void initializeMusicForTable(TableInfo ti, String tableName) {
+		// 
+
+	}
+
+	@Override
+	public void createDirtyRowTable(TableInfo ti, String tableName) {
+		// 
+
+	}
+
+	@Override
+	public void dropDirtyRowTable(String tableName) {
+		// 
+
+	}
+
+	@Override
+	public void clearMusicForTable(String tableName) {
+		// 
+
+	}
+
+	@Override
+	public void markDirtyRow(TableInfo ti, String tableName, JSONObject keys) {
+		// 
+
+	}
+
+	@Override
+	public void cleanDirtyRow(TableInfo ti, String tableName, JSONObject keys) {
+		// 
+
+	}
+
+	@Override
+	public List<Map<String, Object>> getDirtyRows(TableInfo ti, String tableName) {
+		// 
+		return null;
+	}
+
+	@Override
+	public void deleteFromEntityTableInMusic(TableInfo ti, String tableName, JSONObject oldRow) {
+		// 
+
+	}
+
+	@Override
+	public void readDirtyRowsAndUpdateDb(DBInterface dbi, String tableName) {
+		// 
+
+	}
+
+	@Override
+	public void updateDirtyRowAndEntityTableInMusic(TableInfo ti, String tableName, JSONObject changedRow) {
+		updateDirtyRowAndEntityTableInMusic(tableName, changedRow, false);
+
+	}
+
+	public void updateDirtyRowAndEntityTableInMusic(String tableName, JSONObject changedRow, boolean isCritical) {
+	}
+
+
+	public static void loadProperties() {
+		Properties prop = new Properties();
+		InputStream input = null;
+		try {
+			input = MusicMixin.class.getClassLoader().getResourceAsStream("mdbc.properties");
+			prop.load(input);
+			String crTable = prop.getProperty("critical.tables");
+			String[] tableArr = crTable.split(",");
+			criticalTables = Arrays.asList(tableArr);
+
+		} catch (Exception ex) {
+			ex.printStackTrace();
+		} finally {
+			if (input != null) {
+				try {
+					input.close();
+				} catch (IOException e) {
+					e.printStackTrace();
+				}
+			}
+		}
+	}
+
+	public static void releaseZKLocks(Set<LockId> lockIds) {
+		for (LockId lockId : lockIds) {
+			System.out.println("Releasing lock: " + lockId);
+			try {
+				MusicCore.voluntaryReleaseLock(lockId.getFullyQualifiedLockKey(), lockId.getLockReference());
+				MusicCore.destroyLockRef(lockId.getFullyQualifiedLockKey(), lockId.getLockReference());
+			} catch (MusicLockingException e) {
+				e.printStackTrace();
+			}
+		}
+	}
+
+	@Override
+	public String getMusicKeyFromRowWithoutPrimaryIndexes(TableInfo ti, String tableName, JSONObject changedRow) {
+		// 
+		return null;
+	}
+
+	@Override
+	public void initializeMetricDataStructures() {
+		// 
+
+	}
+
+	@Override
+	public Object[] getObjects(TableInfo ti, String tableName, JSONObject row) {
+		return null;
+	}
+
+	@Override
+	public void commitLog(DBInterface dbi, DatabasePartition partition, HashMap<Range, StagingTable> transactionDigest, String txId, TxCommitProgress progressKeeper)
+			throws MDBCServiceException {
+		// TODO Auto-generated method stub
+	}
+
+	@Override
+	public HashMap<Range, StagingTable> getTransactionDigest(MusicTxDigestId id) {
+		return null;
+	}
+
+	@Override
+	public PartitionInformation getPartitionInformation(DatabasePartition partition) {
+		return null;
+	}
+
+	@Override
+	public DatabasePartition createMusicRangeInformation(MusicRangeInformationRow info) {
+		return null;
+	}
+
+	@Override
+	public void appendToRedoLog(MriReference mriRowId, DatabasePartition partition, MusicTxDigestId newRecord) {
+	}
+
+	@Override
+	public void addTxDigest(String musicTxDigestTable, MusicTxDigestId newId, String transactionDigest) {
+	}
+
+	@Override
+	public void own(List<Range> ranges) {
+		throw new java.lang.UnsupportedOperationException("function not implemented yet");
+	}
+
+	@Override
+	public void appendRange(String rangeId, List<Range> ranges) {
+		throw new java.lang.UnsupportedOperationException("function not implemented yet");
+	}
+
+	@Override
+	public void relinquish(String ownerId, String rangeId) {
+		throw new java.lang.UnsupportedOperationException("function not implemented yet");
+	}
+
+	@Override
+	public MusicRangeInformationRow getMusicRangeInformation(DatabasePartition partition){
+		return null;
+	}
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/mixins/MySQLMixin.java b/mdbc-server/src/main/java/org/onap/music/mdbc/mixins/MySQLMixin.java
new file mode 100755
index 0000000..23056e7
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/mixins/MySQLMixin.java
@@ -0,0 +1,805 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc.mixins;
+
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Statement;
+import java.sql.Types;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Properties;
+import java.util.Set;
+import java.util.TreeSet;
+
+import org.json.JSONObject;
+import org.json.JSONTokener;
+
+import org.onap.music.logging.EELFLoggerDelegate;
+import org.onap.music.mdbc.MusicSqlManager;
+import org.onap.music.mdbc.Range;
+import org.onap.music.mdbc.TableInfo;
+import org.onap.music.mdbc.tables.OperationType;
+import org.onap.music.mdbc.tables.StagingTable;
+
+import net.sf.jsqlparser.JSQLParserException;
+import net.sf.jsqlparser.parser.CCJSqlParserUtil;
+import net.sf.jsqlparser.statement.delete.Delete;
+import net.sf.jsqlparser.statement.insert.Insert;
+import net.sf.jsqlparser.statement.update.Update;
+
+/**
+ * This class provides the methods that MDBC needs in order to mirror data to/from a
+ * <a href="https://dev.mysql.com/">MySQL</a> or <a href="http://mariadb.org/">MariaDB</a> database instance.
+ * This class uses the <code>JSON_OBJECT()</code> database function, which means it requires the following
+ * minimum versions of either database:
+ * <table summary="">
+ * <tr><th>DATABASE</th><th>VERSION</th></tr>
+ * <tr><td>MySQL</td><td>5.7.8</td></tr>
+ * <tr><td>MariaDB</td><td>10.2.3 (Note: 10.2.3 is currently (July 2017) a <i>beta</i> release)</td></tr>
+ * </table>
+ *
+ * @author Robert P. Eby
+ */
+public class MySQLMixin implements DBInterface {
+	private EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(MySQLMixin.class);
+	
+	public static final String MIXIN_NAME = "mysql";
+	public static final String TRANS_TBL = "MDBC_TRANSLOG";
+	private static final String CREATE_TBL_SQL =
+		"CREATE TABLE IF NOT EXISTS "+TRANS_TBL+
+		" (IX INT AUTO_INCREMENT, OP CHAR(1), TABLENAME VARCHAR(255), NEWROWDATA VARCHAR(1024), KEYDATA VARCHAR(1024), CONNECTION_ID INT,PRIMARY KEY (IX))";
+
+	private final MusicSqlManager msm;
+	private final int connId;
+	private final String dbName;
+	private final Connection dbConnection;
+	private final Map<String, TableInfo> tables;
+	private boolean server_tbl_created = false;
+
+	public MySQLMixin() {
+		this.msm = null;
+		this.connId = 0;
+		this.dbName = null;
+		this.dbConnection = null;
+		this.tables = null;
+	}
+	public MySQLMixin(MusicSqlManager msm, String url, Connection conn, Properties info) {
+		this.msm = msm;
+		this.connId = generateConnID(conn);
+		this.dbName = getDBName(conn);
+		this.dbConnection = conn;
+		this.tables = new HashMap<String, TableInfo>();
+	}
+	// This is used to generate a unique connId for this connection to the DB.
+	private int generateConnID(Connection conn) {
+		int rv = (int) System.currentTimeMillis();	// random-ish
+		try {
+			Statement stmt = conn.createStatement();
+			ResultSet rs = stmt.executeQuery("SELECT CONNECTION_ID() AS IX");
+			if (rs.next()) {
+				rv = rs.getInt("IX");
+			}
+			stmt.close();
+		} catch (SQLException e) {
+			logger.error(EELFLoggerDelegate.errorLogger,"generateConnID: problem generating a connection ID!");
+		}
+		return rv;
+	}
+
+	/**
+	 * Get the name of this DBnterface mixin object.
+	 * @return the name
+	 */
+	@Override
+	public String getMixinName() {
+		return MIXIN_NAME;
+	}
+
+	@Override
+	public void close() {
+		// nothing yet
+	}
+
+	/**
+	 * Determines the db name associated with the connection
+	 * This is the private/internal method that actually determines the name
+	 * @param conn
+	 * @return
+	 */
+	private String getDBName(Connection conn) {
+		String dbname = "mdbc"; //default name
+		try {
+			Statement stmt = conn.createStatement();
+			ResultSet rs = stmt.executeQuery("SELECT DATABASE() AS DB");
+			if (rs.next()) {
+				dbname = rs.getString("DB");
+			}
+			stmt.close();
+		} catch (SQLException e) {
+			logger.error(EELFLoggerDelegate.errorLogger, "getDBName: problem getting database name from mysql");
+		}
+		return dbname;
+	}
+	
+	public String getDatabaseName() {
+		return this.dbName;
+	}
+	/**
+	 * Get a set of the table names in the database.
+	 * @return the set
+	 */
+	@Override
+	public Set<String> getSQLTableSet() {
+		Set<String> set = new TreeSet<String>();
+		String sql = "SELECT TABLE_NAME FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA=DATABASE() AND TABLE_TYPE='BASE TABLE'";
+		try {
+			Statement stmt = dbConnection.createStatement();
+			ResultSet rs = stmt.executeQuery(sql);
+			while (rs.next()) {
+				String s = rs.getString("TABLE_NAME");
+				set.add(s);
+			}
+			stmt.close();
+		} catch (SQLException e) {
+			logger.error(EELFLoggerDelegate.errorLogger,"getSQLTableSet: "+e);
+		}
+		logger.debug(EELFLoggerDelegate.applicationLogger,"getSQLTableSet returning: "+ set);
+		return set;
+	}
+/*
+mysql> describe tables;
++-----------------+---------------------+------+-----+---------+-------+
+| Field           | Type                | Null | Key | Default | Extra |
++-----------------+---------------------+------+-----+---------+-------+
+| TABLE_CATALOG   | varchar(512)        | NO   |     |         |       |
+| TABLE_SCHEMA    | varchar(64)         | NO   |     |         |       |
+| TABLE_NAME      | varchar(64)         | NO   |     |         |       |
+| TABLE_TYPE      | varchar(64)         | NO   |     |         |       |
+| ENGINE          | varchar(64)         | YES  |     | NULL    |       |
+| VERSION         | bigint(21) unsigned | YES  |     | NULL    |       |
+| ROW_FORMAT      | varchar(10)         | YES  |     | NULL    |       |
+| TABLE_ROWS      | bigint(21) unsigned | YES  |     | NULL    |       |
+| AVG_ROW_LENGTH  | bigint(21) unsigned | YES  |     | NULL    |       |
+| DATA_LENGTH     | bigint(21) unsigned | YES  |     | NULL    |       |
+| MAX_DATA_LENGTH | bigint(21) unsigned | YES  |     | NULL    |       |
+| INDEX_LENGTH    | bigint(21) unsigned | YES  |     | NULL    |       |
+| DATA_FREE       | bigint(21) unsigned | YES  |     | NULL    |       |
+| AUTO_INCREMENT  | bigint(21) unsigned | YES  |     | NULL    |       |
+| CREATE_TIME     | datetime            | YES  |     | NULL    |       |
+| UPDATE_TIME     | datetime            | YES  |     | NULL    |       |
+| CHECK_TIME      | datetime            | YES  |     | NULL    |       |
+| TABLE_COLLATION | varchar(32)         | YES  |     | NULL    |       |
+| CHECKSUM        | bigint(21) unsigned | YES  |     | NULL    |       |
+| CREATE_OPTIONS  | varchar(255)        | YES  |     | NULL    |       |
+| TABLE_COMMENT   | varchar(2048)       | NO   |     |         |       |
++-----------------+---------------------+------+-----+---------+-------+
+ */
+	/**
+	 * Return a TableInfo object for the specified table.
+	 * This method first looks in a cache of previously constructed TableInfo objects for the table.
+	 * If not found, it queries the INFORMATION_SCHEMA.COLUMNS table to obtain the column names, types, and indexes of the table.
+	 * It creates a new TableInfo object with the results.
+	 * @param tableName the table to look up
+	 * @return a TableInfo object containing the info we need, or null if the table does not exist
+	 */
+	@Override
+	public TableInfo getTableInfo(String tableName) {
+		TableInfo ti = tables.get(tableName);
+		if (ti == null) {
+			try {
+				String tbl = tableName;//.toUpperCase();
+				String sql = "SELECT COLUMN_NAME, DATA_TYPE, COLUMN_KEY FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA=DATABASE() AND TABLE_NAME='"+tbl+"'";
+				ResultSet rs = executeSQLRead(sql);
+				if (rs != null) {
+					ti = new TableInfo();
+					while (rs.next()) {
+						String name = rs.getString("COLUMN_NAME");
+						String type = rs.getString("DATA_TYPE");
+						String ckey = rs.getString("COLUMN_KEY");
+						ti.columns.add(name);
+						ti.coltype.add(mapDatatypeNameToType(type));
+						ti.iskey.add(ckey != null && !ckey.equals(""));
+					}
+					rs.getStatement().close();
+				} else {
+					logger.error(EELFLoggerDelegate.errorLogger,"Cannot retrieve table info for table "+tableName+" from MySQL.");
+				}
+			} catch (SQLException e) {
+				logger.error(EELFLoggerDelegate.errorLogger,"Cannot retrieve table info for table "+tableName+" from MySQL: "+e);
+				return null;
+			}
+			tables.put(tableName, ti);
+		}
+		return ti;
+	}
+	// Map MySQL data type names to the java.sql.Types equivalent
+	private int mapDatatypeNameToType(String nm) {
+		switch (nm) {
+		case "tinyint":		return Types.TINYINT;
+		case "smallint":	return Types.SMALLINT;
+		case "mediumint":
+		case "int":			return Types.INTEGER;
+		case "bigint":		return Types.BIGINT;
+		case "decimal":
+		case "numeric":		return Types.DECIMAL;
+		case "float":		return Types.FLOAT;
+		case "double":		return Types.DOUBLE;
+		case "date":
+		case "datetime":	return Types.DATE;
+		case "time":		return Types.TIME;
+		case "timestamp":	return Types.TIMESTAMP;
+		case "char":		return Types.CHAR;
+		case "text":
+		case "varchar":		return Types.VARCHAR;
+		case "mediumblob":
+		case "blob":		return Types.VARCHAR;
+		default:
+			logger.error(EELFLoggerDelegate.errorLogger,"unrecognized and/or unsupported data type "+nm);
+			return Types.VARCHAR;
+		}
+	}
+	@Override
+	public void createSQLTriggers(String tableName) {
+		// Don't create triggers for the table the triggers write into!!!
+		if (tableName.equals(TRANS_TBL))
+			return;
+		try {
+			if (!server_tbl_created) {
+				try {
+					Statement stmt = dbConnection.createStatement();
+					stmt.execute(CREATE_TBL_SQL);
+					stmt.close();
+					logger.info(EELFLoggerDelegate.applicationLogger,"createSQLTriggers: Server side dirty table created.");
+					server_tbl_created = true;
+				} catch (SQLException e) {
+					logger.error(EELFLoggerDelegate.errorLogger,"createSQLTriggers: problem creating the "+TRANS_TBL+" table!");
+				}
+			}
+
+			// Give the triggers a way to find this MSM
+			for (String name : getTriggerNames(tableName)) {
+				logger.info(EELFLoggerDelegate.applicationLogger,"ADD trigger "+name+" to msm_map");
+				//\TODO fix this is an error
+				//msm.register(name);
+			}
+			// No SELECT trigger
+			executeSQLWrite(generateTrigger(tableName, "INSERT"));
+			executeSQLWrite(generateTrigger(tableName, "UPDATE"));
+			executeSQLWrite(generateTrigger(tableName, "DELETE"));
+		} catch (SQLException e) {
+			if (e.getMessage().equals("Trigger already exists")) {
+				//only warn if trigger already exists
+				logger.warn(EELFLoggerDelegate.applicationLogger, "createSQLTriggers" + e);
+			} else {
+				logger.error(EELFLoggerDelegate.errorLogger,"createSQLTriggers: "+e);
+			}
+		}
+	}
+/*
+CREATE TRIGGER `triggername` BEFORE UPDATE ON `table`
+FOR EACH ROW BEGIN
+INSERT INTO `log_table` ( `field1` `field2`, ...) VALUES ( NEW.`field1`, NEW.`field2`, ...) ;
+END;
+
+OLD.field refers to the old value
+NEW.field refers to the new value
+*/
+	private String generateTrigger(String tableName, String op) {
+		boolean isdelete = op.equals("DELETE");
+		boolean isinsert = op.equals("INSERT");
+		TableInfo ti = getTableInfo(tableName);
+		StringBuilder newJson = new StringBuilder("JSON_OBJECT(");		// JSON_OBJECT(key, val, key, val) page 1766
+		StringBuilder keyJson = new StringBuilder("JSON_OBJECT(");
+		String pfx = "";
+		String keypfx = "";
+		for (String col : ti.columns) {
+			newJson.append(pfx)
+			.append("'").append(col).append("', ")
+			.append(isdelete ? "OLD." : "NEW.")
+			.append(col);
+			if (ti.iskey(col) || !ti.hasKey()) {
+				keyJson.append(keypfx)
+				.append("'").append(col).append("', ")
+				.append(isinsert ? "NEW." : "OLD.")
+				.append(col);
+				keypfx = ", ";
+			}
+			pfx = ", ";
+		}
+		newJson.append(")");
+		keyJson.append(")");
+		//\TODO check if using mysql driver, so instead check the exception
+		StringBuilder sb = new StringBuilder()
+		  .append("CREATE TRIGGER ")		// IF NOT EXISTS not supported by MySQL!
+		  .append(String.format("%s_%s", op.substring(0, 1), tableName))
+		  .append(" AFTER ")
+		  .append(op)
+		  .append(" ON ")
+		  .append(tableName)
+		  .append(" FOR EACH ROW INSERT INTO ")
+		  .append(TRANS_TBL)
+		  .append(" (TABLENAME, OP, NEWROWDATA, KEYDATA, CONNECTION_ID) VALUES('")
+		  .append(tableName)
+		  .append("', ")
+		  .append(isdelete ? "'D'" : (op.equals("INSERT") ? "'I'" : "'U'"))
+		  .append(", ")
+		  .append(newJson.toString())
+		  .append(", ")
+		  .append(keyJson.toString())
+		  .append(", ")
+		  .append("CONNECTION_ID()")
+		  .append(")");
+		return sb.toString();
+	}
+	private String[] getTriggerNames(String tableName) {
+		return new String[] {
+			"I_" + tableName,		// INSERT trigger
+			"U_" + tableName,		// UPDATE trigger
+			"D_" + tableName		// DELETE trigger
+		};
+	}
+
+	@Override
+	public void dropSQLTriggers(String tableName) {
+		try {
+			for (String name : getTriggerNames(tableName)) {
+				logger.info(EELFLoggerDelegate.applicationLogger,"REMOVE trigger "+name+" from msmmap");
+				executeSQLWrite("DROP TRIGGER IF EXISTS " +name);
+				//\TODO Fix this is an error
+				//msm.unregister(name);
+			}
+		} catch (SQLException e) {
+			logger.error(EELFLoggerDelegate.errorLogger,"dropSQLTriggers: "+e);
+		}
+	}
+
+	@Override
+	public void insertRowIntoSqlDb(String tableName, Map<String, Object> map) {
+		TableInfo ti = getTableInfo(tableName);
+		String sql = "";
+		if (rowExists(tableName, ti, map)) {
+			// Update - Construct the what and where strings for the DB write
+			StringBuilder what  = new StringBuilder();
+			StringBuilder where = new StringBuilder();
+			String pfx = "";
+			String pfx2 = "";
+			for (int i = 0; i < ti.columns.size(); i++) {
+				String col = ti.columns.get(i);
+				String val = Utils.getStringValue(map.get(col));
+				if (ti.iskey.get(i)) {
+					where.append(pfx).append(col).append("=").append(val);
+					pfx = " AND ";
+				} else {
+					what.append(pfx2).append(col).append("=").append(val);
+					pfx2 = ", ";
+				}
+			}
+			sql = String.format("UPDATE %s SET %s WHERE %s", tableName, what.toString(), where.toString());
+		} else {
+			// Construct the value string and column name string for the DB write
+			StringBuilder fields = new StringBuilder();
+			StringBuilder values = new StringBuilder();
+			String pfx = "";
+			for (String col : ti.columns) {
+				fields.append(pfx).append(col);
+				values.append(pfx).append(Utils.getStringValue(map.get(col)));
+				pfx = ", ";
+			}
+			sql = String.format("INSERT INTO %s (%s) VALUES (%s);", tableName, fields.toString(), values.toString());
+		}
+		try {
+			executeSQLWrite(sql);
+		} catch (SQLException e1) {
+			logger.error(EELFLoggerDelegate.errorLogger,"executeSQLWrite: "+e1);
+		}
+		// TODO - remove any entries from MDBC_TRANSLOG corresponding to this update
+		//	SELECT IX, OP, KEYDATA FROM MDBC_TRANS_TBL WHERE CONNID = "+connId AND TABLENAME = tblname
+	}
+
+	private boolean rowExists(String tableName, TableInfo ti, Map<String, Object> map) {
+		StringBuilder where = new StringBuilder();
+		String pfx = "";
+		for (int i = 0; i < ti.columns.size(); i++) {
+			if (ti.iskey.get(i)) {
+				String col = ti.columns.get(i);
+				String val = Utils.getStringValue(map.get(col));
+				where.append(pfx).append(col).append("=").append(val);
+				pfx = " AND ";
+			}
+		}
+		String sql = String.format("SELECT * FROM %s WHERE %s", tableName, where.toString());
+		ResultSet rs = executeSQLRead(sql);
+		try {
+			boolean rv = rs.next();
+			rs.close();
+			return rv;
+		} catch (SQLException e) {
+			return false;
+		}
+	}
+
+
+	@Override
+	public void deleteRowFromSqlDb(String tableName, Map<String, Object> map) {
+		TableInfo ti = getTableInfo(tableName);
+		StringBuilder where = new StringBuilder();
+		String pfx = "";
+		for (int i = 0; i < ti.columns.size(); i++) {
+			if (ti.iskey.get(i)) {
+				String col = ti.columns.get(i);
+				Object val = map.get(col);
+				where.append(pfx).append(col).append("=").append(Utils.getStringValue(val));
+				pfx = " AND ";
+			}
+		}
+		try {
+			String sql = String.format("DELETE FROM %s WHERE %s", tableName, where.toString());
+			executeSQLWrite(sql);
+		} catch (SQLException e) {
+			e.printStackTrace();
+		}
+	}
+
+	/**
+	 * This method executes a read query in the SQL database.  Methods that call this method should be sure
+	 * to call resultset.getStatement().close() when done in order to free up resources.
+	 * @param sql the query to run
+	 * @return a ResultSet containing the rows returned from the query
+	 */
+	@Override
+	public ResultSet executeSQLRead(String sql) {
+		logger.debug(EELFLoggerDelegate.applicationLogger,"executeSQLRead");
+		logger.debug("Executing SQL read:"+ sql);
+		ResultSet rs = null;
+		try {
+			Statement stmt = dbConnection.createStatement();
+			rs = stmt.executeQuery(sql);
+		} catch (SQLException e) {
+			logger.error(EELFLoggerDelegate.errorLogger,"executeSQLRead"+e);
+		}
+		return rs;
+	}
+
+	/**
+	 * This method executes a write query in the sql database.
+	 * @param sql the SQL to be sent to MySQL
+	 * @throws SQLException if an underlying JDBC method throws an exception
+	 */
+	protected void executeSQLWrite(String sql) throws SQLException {
+		logger.debug(EELFLoggerDelegate.applicationLogger, "Executing SQL write:"+ sql);
+		
+		Statement stmt = dbConnection.createStatement();
+		stmt.execute(sql);
+		stmt.close();
+	}
+
+	/**
+	 * Code to be run within the DB driver before a SQL statement is executed.  This is where tables
+	 * can be synchronized before a SELECT, for those databases that do not support SELECT triggers.
+	 * @param sql the SQL statement that is about to be executed
+	 * @return list of keys that will be updated, if they can't be determined afterwards (i.e. sql table doesn't have primary key)
+	 */
+	@Override
+	public void preStatementHook(final String sql) {
+		if (sql == null) {
+			return;
+		}
+		String cmd = sql.trim().toLowerCase();
+		if (cmd.startsWith("select")) {
+			String[] parts = sql.trim().split(" ");
+			Set<String> set = getSQLTableSet();
+			for (String part : parts) {
+				if (set.contains(part.toUpperCase())) {
+					// Found a candidate table name in the SELECT SQL -- update this table
+					//msm.readDirtyRowsAndUpdateDb(part);
+				}
+			}
+		}
+	}
+
+	/**
+	 * Code to be run within the DB driver after a SQL statement has been executed.  This is where remote
+	 * statement actions can be copied back to Cassandra/MUSIC.
+	 * @param sql the SQL statement that was executed
+	 */
+	@Override
+	public void postStatementHook(final String sql,Map<Range,StagingTable> transactionDigest) {
+		if (sql != null) {
+			String[] parts = sql.trim().split(" ");
+			String cmd = parts[0].toLowerCase();
+			if ("delete".equals(cmd) || "insert".equals(cmd) || "update".equals(cmd)) {
+				try {
+					this.updateStagingTable(transactionDigest);
+				} catch (NoSuchFieldException e) {
+					// TODO Auto-generated catch block
+					e.printStackTrace();
+				}
+			}
+		}
+	}
+
+	private OperationType toOpEnum(String operation) throws NoSuchFieldException {
+		switch (operation.toLowerCase()) {
+			case "i":
+				return OperationType.INSERT;
+			case "d":
+				return OperationType.DELETE;
+			case "u":
+				return OperationType.UPDATE;
+			case "s":
+				return OperationType.SELECT;
+			default:
+				logger.error(EELFLoggerDelegate.errorLogger,"Invalid operation selected: ["+operation+"]");
+				throw new NoSuchFieldException("Invalid operation enum");
+		}
+
+	}
+	/**
+	 * Copy data that is in transaction table into music interface
+	 * @param transactionDigests
+	 * @throws NoSuchFieldException 
+	 */
+	private void updateStagingTable(Map<Range,StagingTable> transactionDigests) throws NoSuchFieldException {
+		// copy from DB.MDBC_TRANSLOG where connid == myconnid
+		// then delete from MDBC_TRANSLOG
+		String sql2 = "SELECT IX, TABLENAME, OP, KEYDATA, NEWROWDATA FROM "+TRANS_TBL +" WHERE CONNECTION_ID = " + this.connId;
+		try {
+			ResultSet rs = executeSQLRead(sql2);
+			Set<Integer> rows = new TreeSet<Integer>();
+			while (rs.next()) {
+				int ix      = rs.getInt("IX");
+				String op   = rs.getString("OP");
+				OperationType opType = toOpEnum(op);
+				String tbl  = rs.getString("TABLENAME");
+				String keydataStr = rs.getString("KEYDATA");
+				String newRowStr = rs.getString("NEWROWDATA");
+				JSONObject newRow  = new JSONObject(new JSONTokener(newRowStr));
+				String musicKey;
+				TableInfo ti = getTableInfo(tbl);
+				if (!ti.hasKey()) {
+					//create music key
+                    //\TODO fix, this is completely broken
+					//if (op.startsWith("I")) {
+						//\TODO Improve the generation of primary key, it should be generated using 
+						// the actual columns, otherwise performance when doing range queries are going 
+						// to be even worse (see the else bracket down)
+                        //
+						musicKey = msm.generateUniqueKey();
+					/*} else {
+						//get key from data
+						musicKey = msm.getMusicKeyFromRowWithoutPrimaryIndexes(tbl,newRow);
+					}*/
+					newRow.put(msm.getMusicDefaultPrimaryKeyName(), musicKey);
+				}
+				else {
+					//Use the keys 
+					musicKey = msm.getMusicKeyFromRow(tbl, newRow);
+					if(musicKey.isEmpty()) {
+						logger.error(EELFLoggerDelegate.errorLogger,"Primary key is invalid: ["+tbl+","+op+"]");
+						throw new NoSuchFieldException("Invalid operation enum");
+					}
+				}
+				Range range = new Range(tbl);
+				if(!transactionDigests.containsKey(range)) {
+					transactionDigests.put(range, new StagingTable());
+				}
+				transactionDigests.get(range).addOperation(musicKey, opType, newRow.toString());
+				rows.add(ix);
+			}
+			rs.getStatement().close();
+			if (rows.size() > 0) {
+				sql2 = "DELETE FROM "+TRANS_TBL+" WHERE IX = ?";
+				PreparedStatement ps = dbConnection.prepareStatement(sql2);
+				logger.debug("Executing: "+sql2);
+				logger.debug("  For ix = "+rows);
+				for (int ix : rows) {
+					ps.setInt(1, ix);
+					ps.execute();
+				}
+				ps.close();
+			}
+		} catch (SQLException e) {
+			logger.warn("Exception in postStatementHook: "+e);
+			e.printStackTrace();
+		}
+	}
+
+	
+	
+	/**
+	 * Update music with data from MySQL table
+	 * 
+	 * @param tableName - name of table to update in music
+	 */
+	@Override
+	public void synchronizeData(String tableName) {
+		ResultSet rs = null;
+		TableInfo ti = getTableInfo(tableName);
+		String query = "SELECT * FROM "+tableName;
+		
+		try {
+			 rs = executeSQLRead(query);
+			 if(rs==null) return;
+			 while(rs.next()) {
+				 
+				JSONObject jo = new JSONObject();
+				if (!getTableInfo(tableName).hasKey()) {
+						String musicKey = msm.generateUniqueKey();
+						jo.put(msm.getMusicDefaultPrimaryKeyName(), musicKey);	
+				}
+					
+				for (String col : ti.columns) {
+						jo.put(col, rs.getString(col));
+				}
+					
+				@SuppressWarnings("unused")
+				Object[] row = Utils.jsonToRow(ti,tableName, jo,msm.getMusicDefaultPrimaryKeyName());
+				//\FIXME this is wrong now, update of the dirty row and entity is now handled by the archival process 
+				//msm.updateDirtyRowAndEntityTableInMusic(ti,tableName, jo);
+			 }
+		} catch (Exception e) {
+			logger.error(EELFLoggerDelegate.errorLogger, "synchronizing data " + tableName +
+								" -> " + e.getMessage());
+		}
+		finally {
+			try {
+				rs.close();
+			} catch (SQLException e) {
+				//continue
+			}
+		}
+		
+	}
+	
+	/**
+	 * Return a list of "reserved" names, that should not be used by MySQL client/MUSIC
+	 * These are reserved for mdbc
+	 */
+	@Override
+	public List<String> getReservedTblNames() {
+		ArrayList<String> rsvdTables = new ArrayList<String>();
+		rsvdTables.add(TRANS_TBL);
+		//Add others here as necessary
+		return rsvdTables;
+	}
+	@Override
+	public String getPrimaryKey(String sql, String tableName) {
+		// 
+		return null;
+	}
+	
+	@SuppressWarnings("unused")
+	@Deprecated
+	private ArrayList<String> getMusicKey(String sql) {
+		try {
+			net.sf.jsqlparser.statement.Statement stmt = CCJSqlParserUtil.parse(sql);
+			if (stmt instanceof Insert) {
+				Insert s = (Insert) stmt;
+				String tbl = s.getTable().getName();
+				return getMusicKey(tbl, "INSERT", sql);
+			} else if (stmt instanceof Update){
+				Update u = (Update) stmt;
+				String tbl = u.getTables().get(0).getName();
+				return getMusicKey(tbl, "UPDATE", sql);
+			} else if (stmt instanceof Delete) {
+				Delete d = (Delete) stmt;
+				//TODO: IMPLEMENT
+				String tbl = d.getTable().getName();
+				return getMusicKey(tbl, "DELETE", sql);
+			} else {
+				System.err.println("Not recognized sql type");
+			}
+			
+		} catch (JSQLParserException e) {
+			
+			e.printStackTrace();
+		}
+		//Something went wrong here
+		return new ArrayList<String>();
+	}
+	
+	/**
+	 * Returns all keys that matches the current sql statement, and not in already updated keys.
+	 * 
+	 * @param tbl
+	 * @param cmd
+	 * @param sql
+	 */
+	@Deprecated
+	private ArrayList<String> getMusicKey(String tbl, String cmd, String sql) {
+		ArrayList<String> musicKeys = new ArrayList<String>();
+		/*
+		if (cmd.equalsIgnoreCase("insert")) {
+			//create key, return key
+			musicKeys.add(msm.generatePrimaryKey());
+		} else if (cmd.equalsIgnoreCase("update") || cmd.equalsIgnoreCase("delete")) {
+			try {
+				net.sf.jsqlparser.statement.Statement stmt = CCJSqlParserUtil.parse(sql);
+				String where;
+				if (stmt instanceof Update) {
+					where = ((Update) stmt).getWhere().toString();
+				} else if (stmt instanceof Delete) {
+					where = ((Delete) stmt).getWhere().toString();
+				} else {
+					System.err.println("Unknown type: " +stmt.getClass());
+					where = "";
+				}
+				ResultSet rs = executeSQLRead("SELECT * FROM " + tbl + " WHERE " + where);
+				musicKeys = msm.getMusicKeysWhere(tbl, Utils.parseResults(getTableInfo(tbl), rs));
+			} catch (JSQLParserException e) {
+				
+				e.printStackTrace();
+			} catch	(SQLException e) {
+				//Not a valid sql query
+				e.printStackTrace();
+			}
+		}
+		*/
+		return musicKeys;
+	}	
+	
+
+	@Deprecated
+	public void insertRowIntoSqlDbOLD(String tableName, Map<String, Object> map) {
+		// First construct the value string and column name string for the db write
+		TableInfo ti = getTableInfo(tableName);
+		StringBuilder fields = new StringBuilder();
+		StringBuilder values = new StringBuilder();
+		String pfx = "";
+		for (String col : ti.columns) {
+			fields.append(pfx).append(col);
+			values.append(pfx).append(Utils.getStringValue(map.get(col)));
+			pfx = ", ";
+		}
+
+		try {
+			String sql = String.format("INSERT INTO %s (%s) VALUES (%s);", tableName, fields.toString(), values.toString());
+			executeSQLWrite(sql);
+		} catch (SQLException e) {
+			logger.error(EELFLoggerDelegate.errorLogger,"Insert failed because row exists, do an update");
+			StringBuilder where = new StringBuilder();
+			pfx = "";
+			String pfx2 = "";
+			fields.setLength(0);
+			for (int i = 0; i < ti.columns.size(); i++) {
+				String col = ti.columns.get(i);
+				String val = Utils.getStringValue(map.get(col));
+				if (ti.iskey.get(i)) {
+					where.append(pfx).append(col).append("=").append(val);
+					pfx = " AND ";
+				} else {
+					fields.append(pfx2).append(col).append("=").append(val);
+					pfx2 = ", ";
+				}
+			}
+			String sql = String.format("UPDATE %s SET %s WHERE %s", tableName, fields.toString(), where.toString());
+			try {
+				executeSQLWrite(sql);
+			} catch (SQLException e1) {
+				logger.error(EELFLoggerDelegate.errorLogger,"executeSQLWrite"+e1);
+			}
+		}
+	}
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/mixins/Utils.java b/mdbc-server/src/main/java/org/onap/music/mdbc/mixins/Utils.java
new file mode 100755
index 0000000..cfa8771
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/mixins/Utils.java
@@ -0,0 +1,239 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc.mixins;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.math.BigDecimal;
+import java.nio.ByteBuffer;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Timestamp;
+import java.sql.Types;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+import java.util.Properties;
+
+import org.json.JSONObject;
+
+import org.onap.music.logging.EELFLoggerDelegate;
+import org.onap.music.mdbc.TableInfo;
+import com.datastax.driver.core.utils.Bytes;
+
+/**
+ * Utility functions used by several of the mixins should go here.
+ *
+ * @author Robert P. Eby
+ */
+public class Utils {
+	private static EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(Utils.class);
+	
+	/**
+	 * Transforms and JsonObject into an array of objects
+	 * @param ti information related to the table
+	 * @param tbl table that jo belong to
+	 * @param jo object that represents a row in the table
+	 * @param musicDefaultPrimaryKeyName contains the name of key associated with the default primary key used by MUSIC, it can be null, if not requird 
+	 * @return array with the objects in the row
+	 */
+	public static Object[] jsonToRow(TableInfo ti, String tbl, JSONObject jo, String musicDefaultPrimaryKeyName) {
+		int columnSize = ti.columns.size();
+		ArrayList<Object> rv = new ArrayList<Object>();
+		if (musicDefaultPrimaryKeyName!=null && jo.has(musicDefaultPrimaryKeyName)) { 
+			rv.add(jo.getString(musicDefaultPrimaryKeyName)); 
+		}
+		for (int i = 0; i < columnSize; i++) {
+			String colname = ti.columns.get(i);
+			switch (ti.coltype.get(i)) {
+			case Types.BIGINT:
+				rv.add(jo.optLong(colname, 0));
+				break;
+			case Types.BOOLEAN:
+				rv.add(jo.optBoolean(colname, false));
+				break;
+			case Types.BLOB:
+				rv.add(jo.optString(colname, ""));
+				break;
+			case Types.DECIMAL:
+				rv.add(jo.optBigDecimal(colname, BigDecimal.ZERO));
+				break;
+			case Types.DOUBLE:
+				rv.add(jo.optDouble(colname, 0));
+				break;
+			case Types.INTEGER:
+				rv.add(jo.optInt(colname, 0));
+				break;
+			case Types.TIMESTAMP:
+				//rv[i] = new Date(jo.optString(colname, ""));
+				rv.add(jo.optString(colname, ""));
+				break;
+			case Types.DATE:
+			case Types.VARCHAR:
+				//Fall through
+			default:
+				rv.add(jo.optString(colname, ""));
+				break;
+			}
+		}
+		return rv.toArray();
+	}
+	
+	/**
+	 * Return a String equivalent of an Object.  Useful for writing SQL.
+	 * @param val the object to String-ify
+	 * @return the String value
+	 */
+	public static String getStringValue(Object val) {
+		if (val == null)
+			return "NULL";
+		if (val instanceof String)
+			return "'" + val.toString().replaceAll("'", "''") + "'";	// double any quotes
+		if (val instanceof Number)
+			return ""+val;
+		if (val instanceof ByteBuffer)
+			return "'" + Bytes.toHexString((ByteBuffer)val).substring(2) + "'";	// substring(2) is to remove the "0x" at front
+		if (val instanceof Date)
+			return "'" + (new Timestamp(((Date)val).getTime())).toString() + "'";
+		// Boolean, and anything else
+		return val.toString();
+	}
+	
+	/**
+	 * Parse result set and put into object array
+	 * @param tbl
+	 * @param rs
+	 * @return
+	 * @throws SQLException
+	 */
+	public static ArrayList<Object[]> parseResults(TableInfo ti, ResultSet rs) throws SQLException {
+		ArrayList<Object[]> results = new ArrayList<Object[]>(); 
+		while (rs.next()) {
+			Object[] row = new Object[ti.columns.size()];
+			for (int i = 0; i < ti.columns.size(); i++) {
+				String colname = ti.columns.get(i);
+				switch (ti.coltype.get(i)) {
+				case Types.BIGINT:
+					row[i] = rs.getLong(colname);
+					break;
+				case Types.BOOLEAN:
+					row[i] = rs.getBoolean(colname);
+					break;
+				case Types.BLOB:
+					System.err.println("WE DO NOT SUPPORT BLOBS IN H2!! COLUMN NAME="+colname);
+					//logger.error("WE DO NOT SUPPORT BLOBS IN H2!! COLUMN NAME="+colname);
+					// throw an exception here???
+					break;
+				case Types.DOUBLE:
+					row[i] = rs.getDouble(colname);
+					break;
+				case Types.INTEGER:
+					row[i] = rs.getInt(colname);
+					break;
+				case Types.TIMESTAMP:
+					//rv[i] = new Date(jo.optString(colname, ""));
+					row[i] = rs.getString(colname);
+					break;
+				case Types.VARCHAR:
+					//Fall through
+				default:
+					row[i] = rs.getString(colname);
+					break;
+				}
+			}
+			results.add(row);
+		}
+		return results;
+	}
+
+	@SuppressWarnings("unused")
+	static List<Class<?>> getClassesImplementing(Class<?> implx) {
+		Properties pr = null;
+		try {
+			pr = new Properties();
+			pr.load(Utils.class.getResourceAsStream("/mdbc_driver.properties"));
+		}
+		catch (IOException e) {
+			logger.error(EELFLoggerDelegate.errorLogger, "Could not load property file > " + e.getMessage());
+		}
+		
+		List<Class<?>> list = new ArrayList<Class<?>>();
+		if (pr==null) {
+			return list;
+		}
+		String mixins = pr.getProperty("MIXINS");
+		for (String className: mixins.split("[ ,]")) {
+			try {
+				Class<?> cl = Class.forName(className.trim());
+				if (MixinFactory.impl(cl, implx)) {
+					list.add(cl);
+				}
+			} catch (ClassNotFoundException e) {
+				logger.error(EELFLoggerDelegate.errorLogger,"Mixin class "+className+" not found.");
+			}
+		}
+		return list;
+	}
+	
+	public static void registerDefaultDrivers() {
+		Properties pr = null;
+		try {
+			pr = new Properties();
+			pr.load(Utils.class.getResourceAsStream("/mdbc_driver.properties"));
+		}
+		catch (IOException e) {
+			logger.error("Could not load property file > " + e.getMessage());
+		}
+		
+		@SuppressWarnings("unused")
+		List<Class<?>> list = new ArrayList<Class<?>>();
+		String drivers = pr.getProperty("DEFAULT_DRIVERS");
+		for (String driver: drivers.split("[ ,]")) {
+			logger.info(EELFLoggerDelegate.applicationLogger, "Registering jdbc driver '" + driver + "'");
+			try {
+				@SuppressWarnings("unused")
+				Class<?> cl = Class.forName(driver.trim());
+			} catch (ClassNotFoundException e) {
+				logger.error(EELFLoggerDelegate.errorLogger,"Driver class "+driver+" not found.");
+			}
+		}		
+	}
+
+	public static Properties getMdbcProperties() {
+		Properties prop = new Properties();
+		InputStream input = null;
+		try {
+			input = Utils.class.getClassLoader().getResourceAsStream("/mdbc.properties");
+			prop.load(input);
+		} catch (Exception e) {
+			logger.warn(EELFLoggerDelegate.applicationLogger, "Could load mdbc.properties."
+					+ "Proceeding with defaults " + e.getMessage());
+		} finally {
+			if (input != null) {
+				try {
+					input.close();
+				} catch (IOException e) {
+					logger.error(EELFLoggerDelegate.errorLogger, e.getMessage());
+				}
+			}
+		}
+		return prop;
+	}
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/mixins/package-info.java b/mdbc-server/src/main/java/org/onap/music/mdbc/mixins/package-info.java
new file mode 100755
index 0000000..eaf0b06
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/mixins/package-info.java
@@ -0,0 +1,67 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+
+/**
+ * <p>
+ * This package provides the "mixins" to use when constructing a MusicSqlManager.  The mixins define how MusicSqlManager
+ * will interface both to the database being mirrored (via the {@link org.onap.music.mdbc.mixins.DBInterface} interface),
+ * and how it will interface to the persistence layer provided by MUSIC (via the {@link org.onap.music.mdbc.mixins.MusicInterface}
+ * interface).
+ * </p>
+ * <p>
+ * The choice of which mixins to use is determined by the MusicSqlManager constructor.
+ * It will decide based upon the URL and connection properties with which it is presented (from the
+ * {@link java.sql.DriverManager#getConnection(String, java.util.Properties)} call).
+ * </p>
+ * <p>
+ * The list of mixins that may be selected from is stored in the properties files <code>mdbc.properties</code>
+ * under the name MIXINS.  This implementation provides the following mixins:
+ * </p>
+ * <table summary="">
+ * <tr><th>Name</th><th>Class</th><th>Description</th></tr>
+ * <tr><td>cassandra</td><td>c.a.r.m.m.CassandraMixin</td><td>A <a href="http://cassandra.apache.org/">Cassandra</a> based
+ * persistence layer (without any of the table locking that MUSIC normally provides).</td></tr>
+ * <tr><td>cassandra2</td><td>c.a.r.m.m.Cassandra2Mixin</td><td>Similar to the <i>cassandra</i> mixin, but stores all
+ * dirty row information in one table, rather than one table per real table.</td></tr>
+ * <tr><td>h2</td><td>c.a.r.m.m.H2Mixin</td><td>This mixin provides access to either an in-memory, or a local
+ * (file-based) version of the H2 database.</td></tr>
+ * <tr><td>h2server</td><td>c.a.r.m.m.H2ServerMixin</td><td>This mixin provides access to a copy of the H2 database
+ * running as a server.  Because the server needs special Java classes in order to handle certain TRIGGER actions, the
+ * server must be et up in a special way (see below).</td></tr>
+ * <tr><td>mysql</td><td>c.a.r.m.m.MySQLMixin</td><td>This mixin provides access to MySQL running on a remote server.</td></tr>
+ * </table>
+ * <h2>Starting the H2 Server</h2>
+ * <p>
+ * The H2 Server, when used with MDBC, must contain the MDBC Trigger class, and supporting libraries.
+ * This can be done as follows:
+ * </p>
+ * <pre>
+ *	CLASSPATH=$PWD/target/mdbc-h2server-0.0.1-SNAPSHOT.jar
+ *	CLASSPATH=$CLASSPATH:$HOME/.m2/repository/com/h2database/h2/1.3.168/h2-1.3.168.jar
+ *	CLASSPATH=$CLASSPATH:$HOME/.m2/repository/log4j/log4j/1.2.17/log4j-1.2.17.jar
+ *	CLASSPATH=$CLASSPATH:$HOME/.m2/repository/org/json/json/20160810/json-20160810.jar
+ *	export CLASSPATH
+ *	java org.h2.tools.Server
+ * </pre>
+ * <p>
+ * The <code>mdbc-h2server-0.0.1-SNAPSHOT.jar</code> file is built with Maven using the <code>pom-h2server.xml</code> pom file. 
+ * </p>
+ */
+package org.onap.music.mdbc.mixins;
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/package-info.java b/mdbc-server/src/main/java/org/onap/music/mdbc/package-info.java
new file mode 100755
index 0000000..ea0cadb
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/package-info.java
@@ -0,0 +1,107 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+
+/**
+ * <p>
+ * This package provides a JDBC driver that can be used to mirror the contents of a database to and from
+ * <a href="http://cassandra.apache.org/">Cassandra</a>.  The mirroring occurs as a side effect of
+ * execute() statements against a JDBC connection, and triggers placed in the database to catch database modifications.
+ * The initial implementation is written to mirror an <a href="http://h2database.com/">H2</a> database.
+ * </p>
+ * <p>
+ * This JDBC driver will intercept all table creations, SELECTs, INSERTs, DELETEs, and UPDATEs made to the underlying
+ * database, and make sure they are copied to Cassandra.  In addition, for every table XX that is created, another table
+ * DIRTY_XX will be created to communicate the existence of <i>dirty rows</i> to other Cassandra replicas (with the
+ * Cassandra2 Mixin, the table is called DIRTY____ and there is only one table).  Dirty rows
+ * will be copied, as needed back into the database from Cassandra before any SELECT.
+ * </p>
+ * <h3>To use with JDBC</h3>
+ * <ol>
+ * <li>Add this jar, and all dependent jars to your CLASSPATH.</li>
+ * <li>Rewrite your JDBC URLs from <code>jdbc:h2:...</code> to <code>jdbc:mdbc:...</code>.
+ * <li>If you supply properties to the {@link java.sql.DriverManager#getConnection(String, java.util.Properties)} call,
+ * use the following optional properties to control behavior of the proxy:
+ * <table summary="">
+ * <tr><th>Property Name</th><th>Property Value</th><th>Default Value</th></tr>
+ * <tr><td>MDBC_DB_MIXIN</td><td>The mixin name to use to select the database mixin to use for this connection.</td></tr>
+ * <tr><td>MDBC_MUSIC_MIXIN</td><td>The mixin name to use to select the MUSIC mixin to use for this connection.</td></tr>
+ * <tr><td>myid</td><td>The ID of this replica in the collection of replicas sharing the same tables.</td><td>0</td></tr>
+ * <tr><td>replicas</td><td>A comma-separated list of replica names for the collection of replicas sharing the same tables.</td><td>the value of <i>myid</i></td></tr>
+ * <tr><td>music_keyspace</td><td>The keyspace name to use in Cassandra for all tables created by this instance of MDBC.</td><td>mdbc</td></tr>
+ * <tr><td>music_address</td><td>The IP address to use to connect to Cassandra.</td><td>localhost</td></tr>
+ * <tr><td>music_rfactor</td><td>The replication factor to use for the new keyspace that is created.</td><td>2</td></tr>
+ * <tr><td>disabled</td><td>If set to <i>true</i> the mirroring is completely disabled; this is the equivalent of using the database driver directly.</td><td>false</td></tr>
+ * </table>
+ * </li>
+ * <li>Load the driver using the following call:
+ * <pre>
+ *	Class.forName("org.onap.music.mdbc.ProxyDriver");
+ * </pre></li>
+ * </ol>
+ * <p>Because, under the current design, the MDBC driver must be running within the same JVM as the database, MDBC
+ * will only explicitly support in-memory databases (URL of <code>jdbc:mdbc:mem:...</code>), or local file
+ * databases (URL of <code>jdbc:mdbc:/path/to/file</code>).  Attempts to access a remote H2 server (URL
+ * <code>jdbc:mdbc:tcp://host/path/to/db</code>) will probably not work, although MDBC will not stop you from trying.
+ * </p>
+ *
+ * <h3>To Define a Tomcat DataSource Resource</h3>
+ * <p>The following code snippet can be used as a guide when setting up a Tomcat DataSource Resource.
+ * This snippet goes in the <i>server.xml</i> file. The items in <b>bold</b> indicate changed or new items:</p>
+ * <pre>
+ * &lt;Resource name="jdbc/ProcessEngine"
+ *	auth="Container"
+ *	type="javax.sql.DataSource"
+ *	factory="org.apache.tomcat.jdbc.pool.DataSourceFactory"
+ *	uniqueResourceName="process-engine"
+ *	driverClassName="<b>org.onap.music.mdbc.ProxyDriver</b>"
+ *	url="jdbc:<b>mdbc</b>:./camunda-h2-dbs/process-engine;MVCC=TRUE;TRACE_LEVEL_FILE=0;DB_CLOSE_ON_EXIT=FALSE"
+ *	<b>connectionProperties="myid=0;replicas=0,1,2;music_keyspace=camunda;music_address=localhost"</b>
+ *	username="sa"
+ *	password="sa"
+ *	maxActive="20"
+ *	minIdle="5" /&gt;
+ * </pre>
+ *
+ * <h3>To Define a JBoss DataSource</h3>
+ * <p>The following code snippet can be used as a guide when setting up a JBoss DataSource.
+ * This snippet goes in the <i>service.xml</i> file. The items in <b>bold</b> indicate changed or new items:</p>
+ * <pre>
+ * &lt;datasources&gt;
+ *   &lt;datasource jta="true" jndi-name="java:jboss/datasources/ProcessEngine" pool-name="ProcessEngine" enabled="true" use-java-context="true" use-ccm="true"&gt;
+ *      &lt;connection-url&gt;jdbc:<b>mdbc</b>:/opt/jboss-eap-6.2.4/standalone/camunda-h2-dbs/process-engine;DB_CLOSE_DELAY=-1;MVCC=TRUE;DB_CLOSE_ON_EXIT=FALSE&lt;/connection-url&gt;
+ *      <b>&lt;connection-property name="music_keyspace"&gt;
+ *        camunda
+ *      &lt;/connection-property&gt;</b>
+ *      &lt;driver&gt;mdbc&lt;/driver&gt;
+ *      &lt;security&gt;
+ *        &lt;user-name&gt;sa&lt;/user-name&gt;
+ *        &lt;password&gt;sa&lt;/password&gt;
+ *      &lt;/security&gt;
+ *    &lt;/datasource&gt;
+ *    &lt;drivers&gt;
+ *      <b>&lt;driver name="mdbc" module="org.onap.music.mdbc"&gt;
+ *        &lt;driver-class&gt;org.onap.music.mdbc.ProxyDriver&lt;/driver-class&gt;
+ *      &lt;/driver&gt;</b>
+ *    &lt;/drivers&gt;
+ *  &lt;/datasources&gt;
+ * </pre>
+ * <p>Note: This assumes that you have built and installed the <b>org.onap.music.mdbc</b> module within JBoss.
+ */
+package org.onap.music.mdbc;
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/tables/MriReference.java b/mdbc-server/src/main/java/org/onap/music/mdbc/tables/MriReference.java
new file mode 100644
index 0000000..61c7bf1
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/tables/MriReference.java
@@ -0,0 +1,33 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc.tables;
+
+import java.util.UUID;
+
+public final class MriReference {
+	public final String table;
+	public final UUID index;
+
+	public MriReference(String table, UUID index) {
+		this.table = table;
+		this.index=  index;
+	}
+
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/tables/MusicRangeInformationRow.java b/mdbc-server/src/main/java/org/onap/music/mdbc/tables/MusicRangeInformationRow.java
new file mode 100644
index 0000000..6b67e5c
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/tables/MusicRangeInformationRow.java
@@ -0,0 +1,41 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc.tables;
+
+import java.util.List;
+import java.util.UUID;
+
+public final class MusicRangeInformationRow {
+	public final UUID index;
+	public final PartitionInformation partition;
+	public final List<MusicTxDigestId> redoLog;
+	public final String ownerId;
+	public final String metricProcessId;
+
+	public MusicRangeInformationRow(UUID index, List<MusicTxDigestId> redoLog, PartitionInformation partition,
+                                    String ownerId, String metricProcessId) {
+		this.index = index;
+		this.redoLog = redoLog;
+		this.partition = partition;
+		this.ownerId = ownerId;
+		this.metricProcessId = metricProcessId;
+	}
+
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/tables/MusicTxDigestId.java b/mdbc-server/src/main/java/org/onap/music/mdbc/tables/MusicTxDigestId.java
new file mode 100644
index 0000000..33952e0
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/tables/MusicTxDigestId.java
@@ -0,0 +1,34 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc.tables;
+
+import java.util.UUID;
+
+public final class MusicTxDigestId {
+	public final UUID tablePrimaryKey;
+
+	public MusicTxDigestId(UUID primaryKey) {
+		this.tablePrimaryKey= primaryKey;
+	}
+
+	public boolean isEmpty() {
+		return (this.tablePrimaryKey==null);
+	}
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/tables/Operation.java b/mdbc-server/src/main/java/org/onap/music/mdbc/tables/Operation.java
new file mode 100644
index 0000000..0c68575
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/tables/Operation.java
@@ -0,0 +1,55 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc.tables;
+
+import java.io.Serializable;
+
+import org.json.JSONObject;
+import org.json.JSONTokener;
+
+public final class Operation implements Serializable{
+
+	private static final long serialVersionUID = -1215301985078183104L;
+
+	final OperationType TYPE;
+	final String NEW_VAL;
+
+	public Operation(OperationType type, String newVal) {
+		TYPE = type;
+		NEW_VAL = newVal;
+	}
+
+	public JSONObject getNewVal(){
+        JSONObject newRow  = new JSONObject(new JSONTokener(NEW_VAL));
+        return newRow;
+    }
+
+    public OperationType getOperationType() {
+    	return this.TYPE;
+    }
+
+    @Override
+    public boolean equals(Object o){
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        Operation r = (Operation) o;
+        return TYPE.equals(r.TYPE) && NEW_VAL.equals(r.NEW_VAL);
+    }
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/tables/OperationType.java b/mdbc-server/src/main/java/org/onap/music/mdbc/tables/OperationType.java
new file mode 100644
index 0000000..696f642
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/tables/OperationType.java
@@ -0,0 +1,24 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc.tables;
+
+public enum OperationType{
+	DELETE, UPDATE, INSERT, SELECT
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/tables/PartitionInformation.java b/mdbc-server/src/main/java/org/onap/music/mdbc/tables/PartitionInformation.java
new file mode 100644
index 0000000..6724860
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/tables/PartitionInformation.java
@@ -0,0 +1,32 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc.tables;
+
+import org.onap.music.mdbc.Range;
+
+import java.util.List;
+
+public class PartitionInformation {
+	public final List<Range> ranges;
+
+	public PartitionInformation(List<Range> ranges) {
+		this.ranges=ranges;
+	}
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/tables/StagingTable.java b/mdbc-server/src/main/java/org/onap/music/mdbc/tables/StagingTable.java
new file mode 100644
index 0000000..d080c54
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/tables/StagingTable.java
@@ -0,0 +1,70 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc.tables;
+
+import java.io.Serializable;
+import java.util.Deque;
+import java.util.HashMap;
+import java.util.LinkedList;
+import java.util.Set;
+import org.apache.commons.lang3.tuple.Pair;
+import org.json.JSONObject;
+
+import org.onap.music.logging.EELFLoggerDelegate;
+
+public class StagingTable implements Serializable{
+	/**
+	 * 
+	 */
+	private static final long serialVersionUID = 7583182634761771943L;
+	private transient static EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(StagingTable.class);
+	//primary key -> Operation
+	private HashMap<String,Deque<Operation>> operations;
+	
+	public StagingTable() {
+		operations = new HashMap<>();
+	}
+	
+	synchronized public void addOperation(String key, OperationType type, String newVal) {
+		if(!operations.containsKey(key)) {
+			operations.put(key, new LinkedList<>());
+		}
+		operations.get(key).add(new Operation(type,newVal));
+	}
+	
+	synchronized public Deque<Pair<String,Operation>> getIterableSnapshot() throws NoSuchFieldException{
+		Deque<Pair<String,Operation>> response=new LinkedList<Pair<String,Operation>>();
+		//\TODO: check if we can just return the last change to a given key 
+		Set<String> keys = operations.keySet();
+		for(String key : keys) {
+			Deque<Operation> ops = operations.get(key);
+			if(ops.isEmpty()) {
+				logger.error(EELFLoggerDelegate.errorLogger, "Invalid state of the Operation data structure when creating snapshot");
+				throw new NoSuchFieldException("Invalid state of the operation data structure");
+			}
+			response.add(Pair.of(key,ops.getLast()));
+		}
+		return response;
+	}
+	
+	synchronized public void clean() {
+		operations.clear();
+	}
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/tables/TxCommitProgress.java b/mdbc-server/src/main/java/org/onap/music/mdbc/tables/TxCommitProgress.java
new file mode 100644
index 0000000..575c9d3
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/tables/TxCommitProgress.java
@@ -0,0 +1,223 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc.tables;
+
+import java.util.Map;
+import java.util.UUID;
+import java.util.concurrent.ConcurrentHashMap;
+import com.datastax.driver.core.utils.UUIDs;
+
+import org.onap.music.logging.EELFLoggerDelegate;
+
+import java.sql.Connection;
+
+
+public class TxCommitProgress{
+	private EELFLoggerDelegate logger = EELFLoggerDelegate.getLogger(TxCommitProgress.class);
+
+	private Map<String, CommitProgress> transactionInfo;
+
+	public TxCommitProgress(){
+		transactionInfo = new ConcurrentHashMap<>();
+	}
+	
+	public boolean containsTx(String txId) {
+		return transactionInfo.containsKey(txId);
+	}
+	
+	public UUID getCommitId(String txId) {
+		CommitProgress prog = transactionInfo.get(txId);
+		if(prog.isCommitIdAssigned()) {
+			return prog.getCommitId();
+		}
+		UUID commitId = UUIDs.random();
+		prog.setCommitId(commitId);
+		return commitId;
+	}
+	
+	public void createNewTransactionTracker(String id, Connection conn) {
+		transactionInfo.put(id, new CommitProgress(id,conn));
+	}
+	
+	public void commitRequested(String txId) {
+		CommitProgress prog = transactionInfo.get(txId);
+		if(prog == null){
+			logger.error(EELFLoggerDelegate.errorLogger, "Transaction doesn't exist: [%l], failure when storing commit request",txId);
+		}
+		prog.setCommitRequested();
+	}
+	
+	public void setSQLDone(String txId) {
+		CommitProgress prog = transactionInfo.get(txId);
+		if(prog == null){
+			logger.error(EELFLoggerDelegate.errorLogger, "Transaction doesn't exist: [%l], failure when storing saving completion of SQL",txId);
+		}
+		prog.setSQLCompleted();
+	}
+
+	public void setMusicDone(String txId) {
+		CommitProgress prog = transactionInfo.get(txId);
+		if(prog == null){
+			logger.error(EELFLoggerDelegate.errorLogger, "Transaction doesn't exist: [%l], failure when storing saving completion of Music",txId);
+		}
+		prog.setMusicCompleted();
+	}
+	
+	public Connection getConnection(String txId){
+		CommitProgress prog = transactionInfo.get(txId);
+		if(prog == null){
+			logger.error(EELFLoggerDelegate.errorLogger, "Transaction doesn't exist: [%l], failure when retrieving statement",txId);
+		}
+		return prog.getConnection();
+	}
+	
+	public void setRecordId(String txId, MusicTxDigestId recordId){
+		CommitProgress prog = transactionInfo.get(txId);
+		if(prog == null){
+			logger.error(EELFLoggerDelegate.errorLogger, "Transaction doesn't exist: [%l], failure when setting record Id",txId);
+		}
+		prog.setRecordId(recordId);
+	}
+	
+	public MusicTxDigestId getRecordId(String txId) {
+		CommitProgress prog = transactionInfo.get(txId);
+		if(prog == null){
+			logger.error(EELFLoggerDelegate.errorLogger, "Transaction doesn't exist: [%l], failure when getting record Id",txId);
+		}
+		return prog.getRecordId();
+	}
+	
+	public boolean isRecordIdAssigned(String txId) {
+		CommitProgress prog = transactionInfo.get(txId);
+		if(prog == null){
+			logger.error(EELFLoggerDelegate.errorLogger, "Transaction doesn't exist: [%l], failure when checking record",txId);
+		}
+		return prog.isRedoRecordAssigned();
+	}
+	
+	public boolean isComplete(String txId) {
+		CommitProgress prog = transactionInfo.get(txId);
+		if(prog == null){
+			logger.error(EELFLoggerDelegate.errorLogger, "Transaction doesn't exist: [%l], failure when checking completion",txId);
+		}
+		return prog.isComplete();
+	}
+	
+	public void reinitializeTxProgress(String txId) {
+		CommitProgress prog = transactionInfo.get(txId);
+		if(prog == null){
+			logger.error(EELFLoggerDelegate.errorLogger, "Transaction doesn't exist: [%l], failure when reinitializing tx progress",txId);
+		}
+		prog.reinitialize();
+	}
+
+	public void deleteTxProgress(String txId){
+		transactionInfo.remove(txId);
+	}
+}
+
+final class CommitProgress{
+	private String lTxId; // local transaction id  
+	private UUID commitId; // commit id
+	private boolean commitRequested; //indicates if the user tried to commit the request already.
+	private boolean SQLDone; // indicates if SQL was already committed 
+	private boolean MusicDone; // indicates if music commit was already performed, atomic bool
+	private Connection connection;// reference to a connection object. This is used to complete a commit if it failed in the original thread.
+	private Long timestamp; // last time this data structure was updated
+	private MusicTxDigestId musicTxDigestId;// record id for each partition
+
+	public CommitProgress(String id,Connection conn){
+		musicTxDigestId =null;
+		lTxId = id;
+		commitRequested = false;
+		SQLDone = false;
+		MusicDone = false;
+		connection = conn;
+	    commitId = null;
+		timestamp = System.currentTimeMillis();
+	}
+	
+	public synchronized boolean isComplete() {
+		return commitRequested && SQLDone && MusicDone;
+	}
+	
+	public synchronized void setCommitId(UUID commitId) {
+		this.commitId = commitId;
+		timestamp = System.currentTimeMillis();
+	}
+	
+	public synchronized void reinitialize() {
+		commitId = null;
+		musicTxDigestId =null;
+		commitRequested = false;
+		SQLDone = false;
+		MusicDone = false;
+		timestamp = System.currentTimeMillis();
+	}
+
+	public synchronized void setCommitRequested() {
+		commitRequested = true;
+		timestamp = System.currentTimeMillis();
+	}
+
+	public synchronized void setSQLCompleted() {
+		SQLDone = true;
+		timestamp = System.currentTimeMillis();
+	}
+	
+	public synchronized void setMusicCompleted() {
+		MusicDone = true;
+		timestamp = System.currentTimeMillis();
+	}
+	
+	public Connection getConnection() {
+		timestamp = System.currentTimeMillis();
+		return connection;
+	} 
+	
+	public long getTimestamInMillis() {
+		return timestamp;
+	}
+
+	public synchronized void setRecordId(MusicTxDigestId id) {
+		musicTxDigestId =  id;
+		timestamp = System.currentTimeMillis();
+	}
+	
+	public synchronized boolean isRedoRecordAssigned() {
+		return this.musicTxDigestId !=null;
+	} 
+
+	public synchronized MusicTxDigestId getRecordId() {
+		return musicTxDigestId;
+	} 
+	
+	public synchronized UUID getCommitId() {
+		return commitId;
+	}
+	
+	public synchronized String getId() {
+		return this.lTxId;
+	}
+	
+	public synchronized boolean isCommitIdAssigned() {
+		return this.commitId!= null;
+	}
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/tests/ConnectionTest.java b/mdbc-server/src/main/java/org/onap/music/mdbc/tests/ConnectionTest.java
new file mode 100644
index 0000000..2a8c45f
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/tests/ConnectionTest.java
@@ -0,0 +1,438 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc.tests;
+
+//import java.sql.Connection;
+//import java.sql.DriverManager;
+//import java.sql.PreparedStatement;
+//import java.sql.ResultSet;
+//import java.sql.SQLException;
+//import java.sql.Statement;
+//import java.util.HashSet;
+//import java.util.Properties;
+//import java.util.Set;
+//
+//import org.h2.tools.Server;
+//import org.junit.After;
+//import org.junit.AfterClass;
+//import org.junit.Before;
+//import org.junit.BeforeClass;
+//import org.junit.Test;
+//import org.slf4j.Logger;
+//import org.slf4j.LoggerFactory;
+//
+//import com.mysql.jdbc.jdbc2.optional.MysqlDataSource;
+
+
+//@FixMethodOrder(MethodSorters.NAME_ASCENDING)
+//@RunWith(ConcurrentTestRunner.class)
+public class ConnectionTest {
+//
+////	static {
+////		System.setProperty(org.slf4j.impl.SimpleLogger.DEFAULT_LOG_LEVEL_KEY, "INFO");
+////		System.setProperty(org.slf4j.impl.SimpleLogger.LOG_FILE_KEY, String.format("ComparativeAnalysisTest-%d.log", System.currentTimeMillis()));
+////	}
+//	private static final Logger LOG = LoggerFactory.getLogger(ConnectionTest.class);
+//
+//	Set<Thread> runningThreads = new HashSet<Thread>();
+//
+//	@BeforeClass
+//	public static void setUpBeforeClass() throws Exception {
+//
+//	}
+//
+//	@AfterClass
+//	public static void tearDownAfterClass() throws Exception {
+//		
+//	}
+//
+//	@Before
+//	public void setUp() throws Exception {
+//
+//	}
+//
+//	@After
+//	public void tearDown() throws Exception {
+//
+//	}
+//
+//	//@Test
+//	public void test01() {
+//		System.out.println("TEST 1: Getting ready for testing connection to Cassandra");
+//
+//		final CassandraConnector client = new CassandraConnector();
+//		final String ipAddress = "localhost";
+//		final int port = 9042;
+//		LOG.info("Connecting to IP Address " + ipAddress + ":" + port + "...");
+//		client.connect(ipAddress, port);
+//		client.close();
+//		System.out.println();
+//	}
+//	
+//	/**
+//	 * Tests for using jdbc as well as mdbc. In order to use, must have mysql and
+//	 * running locally. Must have a database EMP created in the
+//	 * mysql db. Uses "Driver.getConnection(com.mysql.jdbc.Driver)" for jdbc connection
+//	 * 
+//	 */
+//	//@Test
+//	public void test02() {
+//		System.out.println("TEST 2: Getting ready for testing connection via jdbc");
+//		// JDBC driver name and database URL
+//		final String JDBC_DRIVER = "com.mysql.jdbc.Driver";  
+//		final String DB_URL = "jdbc:mysql://localhost/EMP";
+//
+//		//  Database credentials
+//		final String USER = "alice";
+//		final String PASS = "bob";
+//		Properties connectionProps = new Properties();
+//	    connectionProps.put("user", USER);
+//	    connectionProps.put("password", PASS);
+//
+//	    System.out.println("Connecting directly to database...");
+//		connectViaDriverManager(JDBC_DRIVER, DB_URL, connectionProps);
+//		System.out.println();
+//	}
+//
+//	/**
+//	 * Performs same test as @test02() except this test uses mdbc.
+//	 * 
+//	 * In order to use, must have mysql and Cassandra services running locally. Must 
+//	 * have a database EMP created in the mysql db. Uses 
+//	 * "Driver.getConnection(org.onap.music.mdbc.ProxyDriver)" for mdbc
+//	 * connection
+//	 */
+//	//@Test
+//	public void test03() {
+//		System.out.println("TEST 3: Getting ready for testing connection via mdbc");
+//		//  Database credentials
+//		final String USER = "alice";
+//		final String PASS = "bob";
+//		Properties connectionProps = new Properties();
+//		connectionProps.put("user", USER);
+//		connectionProps.put("password", PASS);
+//	
+//		final String MDBC_DRIVER = "org.onap.music.mdbc.ProxyDriver";
+//		final String MDBC_DB_URL = "jdbc:mdbc://localhost/TEST";
+//		final String MDBC_DB_MIXIN = "mysql";
+//		connectionProps.put("MDBC_DB_MIXIN", MDBC_DB_MIXIN);
+//
+//		System.out.println("Connecting to database via mdbc");
+//		connectViaDriverManager(MDBC_DRIVER, MDBC_DB_URL, connectionProps);
+// 	    System.out.println();
+//	}
+//
+//	/**
+//	 * Performs same test as @test02() except this test uses mdbc.
+//	 * 
+//	 * In order to use, must have mysql and Cassandra services running locally. Must 
+//	 * have a database EMP created in the mysql db. Uses 
+//	 * "Driver.getConnection(org.onap.music.mdbc.ProxyDriver)" for mdbc
+//	 * connection
+//	 * 
+//	 * Uses preparedStatements
+//	 */
+//	//@Test
+//	public void test03point5() {
+//		System.out.println("TEST 3.5: Getting ready for testing connection via mdbc w/ PreparedStatement");
+//		//  Database credentials
+//		final String USER = "alice";
+//		final String PASS = "bob";
+//		Properties connectionProps = new Properties();
+//		connectionProps.put("user", USER);
+//		connectionProps.put("password", PASS);
+//	
+//		final String MDBC_DRIVER = "org.onap.music.mdbc.ProxyDriver";
+//		final String MDBC_DB_URL = "jdbc:mdbc://localhost/EMP";
+//		//final String MDBC_DRIVER = "org.h2.Driver";
+//		//final String MDBC_DB_URL = "jdbc:h2:tcp://localhost:9092/~/test";
+//		final String MDBC_DB_MIXIN = "mysql";
+//		connectionProps.put("MDBC_DB_MIXIN", MDBC_DB_MIXIN);
+//		
+//		System.out.println("Connecting to database via mdbc");
+//		Connection conn = null;
+//		PreparedStatement stmt = null;
+//		try {
+//			//STEP 2: Register JDBC driver
+//			Class.forName(MDBC_DRIVER);
+//
+//			//STEP 3: Open a connection
+//			conn = DriverManager.getConnection(MDBC_DB_URL, connectionProps);
+//			conn.setAutoCommit(false);
+//
+//			//STEP 4: Execute a query
+//			System.out.println("Inserting into DB");
+//			stmt = conn.prepareStatement("INSERT INTO EMPLOYEE (id, first, last, age) VALUES (?, ?, ?, ?)");
+//			stmt.setString(1, null);
+//			stmt.setString(2, "John");
+//			stmt.setString(3, "Smith");
+//			stmt.setInt(4, 20);
+//			stmt.execute();
+//			
+//			System.out.println("Inserting again into DB");
+//			stmt.setString(2, "Jane");
+//			stmt.setInt(4, 30);
+//			stmt.execute();
+//			
+//			stmt.close();
+//			
+//			conn.commit();
+//			
+//			System.out.println("Querying the DB");
+//			stmt = conn.prepareStatement("SELECT id, first, last, age FROM EMPLOYEE WHERE age < ?");
+//			stmt.setInt(1, 25);
+//			ResultSet rs = stmt.executeQuery();
+//			//STEP 5: Extract data from result set
+//			while(rs.next()) {
+//				//Retrieve by column name
+//				int id  = rs.getInt("id");
+//				int age = rs.getInt("age");
+//				String first = rs.getString("first");
+//				String last = rs.getString("last");
+//
+//				//Display values
+//				//*
+//				System.out.print("ID: " + id);
+//				System.out.print(", Age: " + age);
+//				System.out.print(", First: " + first);
+//				System.out.println(", Last: " + last);
+//				//*/
+//			}
+//			
+//			System.out.println("Querying again");
+//			stmt.setInt(1, 35);
+//			rs = stmt.executeQuery();
+//			//STEP 5: Extract data from result set
+//			while(rs.next()) {
+//				//Retrieve by column name
+//				int id  = rs.getInt("id");
+//				int age = rs.getInt("age");
+//				String first = rs.getString("first");
+//				String last = rs.getString("last");
+//
+//				//Display values
+//				//*
+//				System.out.print("ID: " + id);
+//				System.out.print(", Age: " + age);
+//				System.out.print(", First: " + first);
+//				System.out.println(", Last: " + last);
+//				//*/
+//			}
+//			
+//			
+//			//sql = "DELETE FROM EMPLOYEE WHERE first = \"John\" and last = \"Smith\"";
+//			//stmt.execute(sql);
+//
+//			//sql = "DROP TABLE IF EXISTS EMPLOYEE";
+//			//stmt.execute(sql);
+//
+//			//STEP 6: Clean-up environment
+//			rs.close();
+//			stmt.close();
+//			conn.close();
+//		} catch(SQLException se) {
+//			//Handle errors for JDBC
+//			se.printStackTrace();
+//		} catch (Exception e) {
+//			//Handle errors for Class.forName
+//			e.printStackTrace();
+//		} finally {
+//			//finally block used to close resources
+//			try {
+//				if(stmt!=null)
+//					stmt.close();
+//			} catch(SQLException se2) {
+//			}
+//			try {
+//				if(conn!=null)
+//					conn.close();
+//			} catch(SQLException se) {
+//				se.printStackTrace();
+//			}
+//		}
+// 	    System.out.println("Done");
+//	}
+//	
+//	
+//	/**
+//	 * Connects to a generic database. Can be used for mdbc or jdbc
+//	 * @param DBC_DRIVER the driver for which to register (Class.forName(DBC_DRIVER))
+//	 * @param DB_URL the URL for the database we are testing
+//	 * @param connectionProps
+//	 */
+//	private void connectViaDriverManager(final String DBC_DRIVER, final String DB_URL, Properties connectionProps) {
+//		Connection conn = null;
+//		Statement stmt = null;
+//		try {
+//			
+//			//Server server = Server.createTcpServer("-tcpAllowOthers").start();
+//			//STEP 2: Register JDBC driver
+//			Class.forName(DBC_DRIVER);
+//
+//			//STEP 3: Open a connection
+//			conn = DriverManager.getConnection(DB_URL, connectionProps);
+//			conn.setAutoCommit(false);
+//			
+//			//STEP 4: Execute a query
+//			stmt = conn.createStatement();
+//			String sql;
+//			
+//			//sql = "DROP TABLE EMPLOYEE";
+//			//stmt.execute(sql);
+//			
+//			sql = "CREATE TABLE IF NOT EXISTS EMPLOYEE (id INT primary key, first VARCHAR(20), last VARCHAR(20), age INT);";
+//			stmt.execute(sql);
+//
+//			sql = "INSERT INTO EMPLOYEE (id, first, last, age) VALUES (\"34\", \"Jane4\", \"Doe4\", \"40\")";
+//			stmt.execute(sql);			
+//
+//			sql = "SELECT id, first, last, age FROM EMPLOYEE";
+//			ResultSet rs = stmt.executeQuery(sql);
+//
+//			//STEP 5: Extract data from result set
+//			while(rs.next()) {
+//				//Retrieve by column name
+//				int id  = rs.getInt("id");
+//				int age = rs.getInt("age");
+//				String first = rs.getString("first");
+//				String last = rs.getString("last");
+//
+//				//Display values
+//				//*
+//				System.out.print("ID: " + id);
+//				System.out.print(", Age: " + age);
+//				System.out.print(", First: " + first);
+//				System.out.println(", Last: " + last);
+//				//*/
+//
+//			}
+//			//sql = "DELETE FROM EMPLOYEE WHERE first = \"John\" and last = \"Smith\"";
+//			//stmt.execute(sql);
+//
+//			//sql = "DROP TABLE IF EXISTS EMPLOYEE";
+//			//stmt.execute(sql);
+//
+//			conn.commit();
+//			
+//			//STEP 6: Clean-up environment
+//			rs.close();
+//			stmt.close();
+//			conn.close();
+//		} catch(SQLException se) {
+//			//Handle errors for JDBC
+//			se.printStackTrace();
+//		} catch (Exception e) {
+//			//Handle errors for Class.forName
+//			e.printStackTrace();
+//		} finally {
+//			//finally block used to close resources
+//			try {
+//				if(stmt!=null)
+//					stmt.close();
+//			} catch(SQLException se2) {
+//			}
+//			try {
+//				if(conn!=null)
+//					conn.close();
+//			} catch(SQLException se) {
+//				se.printStackTrace();
+//			}
+//		}
+//	}
+//
+//	
+//
+//	/**
+//	 * Must be mysql datasource
+//	 * @throws Exception
+//	 */
+//	//@Test
+//	public void test04() throws Exception {
+//		String dbConnectionName = "testing";
+//		String dbUserId = "alice";
+//		String dbPasswd = "bob";
+//		String db_url = "jdbc:mysql://localhost/EMP";
+//		MysqlDataSource dataSource = new MysqlDataSource();
+//		dataSource.setUser(dbUserId);
+//		dataSource.setPassword(dbPasswd);
+//		dataSource.setURL(db_url);
+//
+//
+//		Connection con = dataSource.getConnection();
+//		Statement st = con.createStatement();
+//		ResultSet rs = null; 
+//		
+//		//FIXME CREATE EMPLOYEE TABLE
+//		
+//		if (st.execute("insert into EMPLOYEE values (\"John Doe\");")) {
+//			rs = st.getResultSet();
+//		}
+//		
+//		rs = st.executeQuery("select * from EMPLOYEE;");
+//		while (rs.next()) {
+//			System.out.println(rs.getString("name"));
+//		}
+//		
+//		if (st.execute("DELETE FROM EMPLOYEE")) {
+//			rs = st.getResultSet();
+//		}
+//		rs.close();
+//		st.close();
+//		con.close();
+//	}
+//	
+//	/**
+//	 * Test connection to mysql datasource class
+//	 * @throws Exception
+//	 */
+//	@Test
+//	public void test05() throws Exception {
+//		String dbConnectionName = "testing";
+//		String dbUserId = "alice";
+//		String dbPasswd = "bob";
+//		String db_url = "jdbc:mdbc://localhost/EMP";
+//		String db_type = "mysql";
+//		MdbcDataSource dataSource = new MdbcDataSource();
+//		dataSource.setUser(dbUserId);
+//		dataSource.setPassword(dbPasswd);
+//		dataSource.setURL(db_url);
+//		dataSource.setDBType(db_type);
+//		
+//		Connection con = dataSource.getConnection();
+//		Statement st = con.createStatement();
+//		ResultSet rs = null; 
+//		
+//		if (st.execute("insert into EMPLOYEE values (\"John Doe\");")) {
+//			rs = st.getResultSet();
+//		}
+//		
+//		rs = st.executeQuery("select * from EMPLOYEE;");
+//		while (rs.next()) {
+//			System.out.println(rs.getString("name"));
+//		}
+//		
+//		if (st.execute("DELETE FROM EMPLOYEE")) {
+//			rs = st.getResultSet();
+//		}
+//		rs.close();
+//		st.close();
+//		con.close();
+//	}
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/tests/MAIN.java b/mdbc-server/src/main/java/org/onap/music/mdbc/tests/MAIN.java
new file mode 100755
index 0000000..348d891
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/tests/MAIN.java
@@ -0,0 +1,125 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc.tests;
+
+import java.io.FileInputStream;
+import java.io.InputStream;
+import java.lang.reflect.Constructor;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.apache.log4j.Logger;
+import org.json.JSONArray;
+import org.json.JSONObject;
+import org.json.JSONTokener;
+
+/**
+ * Run all the tests against all the configurations specified in /tests.json.
+ *
+ * @author Robert Eby
+ */
+public class MAIN {
+	public static final String CONFIG = "/tests.json";
+
+	/**
+	 * This class runs all the tests against all the configurations specified in /tests.json.
+	 * It assumes that a copy of Cassandra is running locally on port 9042, that a copy of H2
+	 * server is is running locally on port 8082, and that a copy of MySQL is running locally
+	 * on port 3306.  These can be adjusted by editing the /tests.json file.
+	 *
+	 * @param args command line arguments
+	 * @throws Exception if anything goes wrong
+	 */
+	public static void main(String[] args) throws Exception {
+		new MAIN(args).run();
+		System.exit(0);
+	}
+
+	private JSONArray configs;
+	private List<Test> tests;
+	private int total_success, total_failure;
+
+	public MAIN(String[] args) throws Exception {
+		configs = null;
+		tests = new ArrayList<Test>();
+		total_success = total_failure = 0;
+
+		InputStream is = null;
+		if (args.length == 0) {
+			is = this.getClass().getResourceAsStream(CONFIG);
+		} else {
+			is = new FileInputStream(args[0]);
+		}
+		if (is != null) {
+			JSONObject jo = new JSONObject(new JSONTokener(is));
+			is.close();
+			configs = jo.getJSONArray("configs");
+
+			JSONArray ja = jo.getJSONArray("tests");
+			for (int i = 0; i < ja.length(); i++) {
+				Class<?> cl = Class.forName(ja.getString(i).trim());
+				if (cl != null) {
+					Constructor<?> con = cl.getConstructor();
+					tests.add((Test) con.newInstance());
+				}
+			}
+		} else {
+			String conf = (args.length == 0) ? CONFIG : args[0];
+			throw new Exception("Cannot find configuration resource: "+conf);
+		}
+	}
+	public void run() {
+		Logger logger = Logger.getLogger(this.getClass());
+		for (int ix = 0; ix < configs.length(); ix++) {
+			JSONObject config = configs.getJSONObject(ix);
+			int succ = 0, fail = 0;
+			logger.info("*** Testing with configuration: "+config.getString("description"));
+			System.out.println("Testing with configuration: "+config.getString("description"));
+			for (Test t : tests) {
+				String nm = t.getName() + " ............................................................";
+				System.out.print("  Test: "+nm.substring(0, 60));
+				try {
+					List<String> msgs = t.run(config);
+					if (msgs == null || msgs.size() == 0) {
+						succ++;
+						System.out.println(" OK!");
+					} else {
+						fail++;
+						System.out.println(" Fail!");
+						System.out.flush();
+						for (String m : msgs) {
+							System.out.println("  "+m);
+						}
+						System.out.flush();
+					}
+				} catch (Exception x) {
+					fail++;
+					System.out.println(" Fail!");
+				}
+			}
+			System.out.println();
+			total_success += succ;
+			total_failure += fail;
+		}
+		String m = "Testing completed: "+total_success+" successful tests, "+total_failure+": failures.";
+		logger.info(m);
+		System.out.println(m);
+	}
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/tests/Test.java b/mdbc-server/src/main/java/org/onap/music/mdbc/tests/Test.java
new file mode 100755
index 0000000..8f0ad7d
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/tests/Test.java
@@ -0,0 +1,124 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc.tests;
+
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Statement;
+import java.util.List;
+import java.util.Properties;
+
+import org.json.JSONArray;
+import org.json.JSONObject;
+
+/**
+ * Provides the abstract interface for a Test, as well as some common functions.
+ *
+ * @author Robert Eby
+ */
+public abstract class Test {
+	public static final String MDBC_DRIVER = "org.onap.music.mdbc.ProxyDriver";
+
+	/**
+	 * Each test derived from this class must implement this method,
+	 * which runs the test and produces a list of error messages.
+	 *
+	 * @param config a JSONObject describing the configuration to use for this run of the test
+	 * @return the list of messages.  If the list is empty, the test is considered to have run
+	 * successfully.
+	 */
+	abstract public List<String> run(JSONObject config);
+
+	public String getName() {
+		String s = this.getClass().getName();
+		return s.replaceAll("org.onap.music.mdbc.tests.", "");
+	}
+
+	public Properties buildProperties(JSONObject config, int i) {
+		Properties p = new Properties();
+		for (String key : config.keySet()) {
+			if (key.equals("connections")) {
+				JSONArray ja = config.getJSONArray("connections");
+				JSONObject connection = ja.getJSONObject(i);
+				for (String key2 : connection.keySet()) {
+					p.setProperty(key2, connection.getString(key2));
+				}
+			} else {
+				p.setProperty(key, config.getString(key));
+			}
+		}
+		return p;
+	}
+
+	public Connection getDBConnection(Properties pr) throws SQLException, ClassNotFoundException {
+		Class.forName(MDBC_DRIVER);
+		String url = pr.getProperty("url");
+		return DriverManager.getConnection(url, pr);
+	}
+
+	public void assertNotNull(Object o) throws Exception {
+		if (o == null)
+			throw new Exception("Object is null");
+	}
+
+	public void assertTableContains(int connid, Connection conn, String tbl, Object... kv) throws Exception {
+		ResultSet rs = getRow(conn, tbl, kv);
+		boolean throwit = !rs.next();
+		rs.close();
+		if (throwit) {
+			throw new Exception("Conn id "+connid+" Table "+tbl+" does not have a row with "+catkeys(kv));
+		}
+	}
+	public void assertTableDoesNotContain(int connid, Connection conn, String tbl, Object... kv) throws Exception {
+		boolean throwit = true;
+		try {
+			assertTableContains(connid, conn, tbl, kv);
+		} catch (Exception x) {
+			throwit = false;
+		}
+		if (throwit) {
+			throw new Exception("Conn id "+connid+" Table "+tbl+" does have a row with "+catkeys(kv));
+		}
+	}
+	public ResultSet getRow(Connection conn, String tbl, Object... kv) throws SQLException {
+		Statement stmt = conn.createStatement();
+		StringBuilder sql = new StringBuilder("SELECT * FROM ")
+			.append(tbl)
+			.append(" WHERE ")
+			.append(catkeys(kv));
+		return stmt.executeQuery(sql.toString());
+	}
+	public String catkeys(Object... kv) {
+		StringBuilder sql = new StringBuilder();
+		String pfx = "";
+		for (int i = 0; (i+1) < kv.length; i += 2) {
+			sql.append(pfx).append(kv[i]).append("=");
+			if (kv[i+1] instanceof String) {
+				sql.append("'").append(kv[i+1]).append("'");
+			} else {
+				sql.append(kv[i+1].toString());
+			}
+			pfx = " AND ";
+		}
+		return sql.toString();
+	}
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/tests/Test_Delete.java b/mdbc-server/src/main/java/org/onap/music/mdbc/tests/Test_Delete.java
new file mode 100755
index 0000000..57d85d4
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/tests/Test_Delete.java
@@ -0,0 +1,89 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc.tests;
+
+import java.sql.Connection;
+import java.sql.Statement;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.json.JSONArray;
+import org.json.JSONObject;
+
+/**
+ * Test that DELETEs work on the original DB, and are correctly copied to replica DBs.
+ *
+ * @author Robert Eby
+ */
+public class Test_Delete extends Test {
+	private final String TBL = "DELTABLE";
+
+	@Override
+	public List<String> run(JSONObject config) {
+		List<String> msgs = new ArrayList<String>();
+		JSONArray connections = config.getJSONArray("connections");
+		Connection[] conn = new Connection[connections.length()];
+		Statement[] stmt = new Statement[conn.length];
+		try {
+			for (int i = 0; i < conn.length; i++) {
+				conn[i] = getDBConnection(buildProperties(config, i));
+				assertNotNull(conn[i]);
+				stmt[i] = conn[i].createStatement();
+				assertNotNull(stmt[i]);
+			}
+
+			try {
+				for (int i = 0; i < conn.length; i++) {
+					conn[i].setAutoCommit(true);
+					stmt[i].execute("CREATE TABLE IF NOT EXISTS DELTABLE(ID_ varchar(255), RANDOMTXT varchar(255), primary key (ID_))");
+				}
+				stmt[0].execute("INSERT INTO DELTABLE(ID_, RANDOMTXT) VALUES('1', 'Everything''s Negotiable Except Cutting Medicaid')");
+				stmt[0].execute("INSERT INTO DELTABLE(ID_, RANDOMTXT) VALUES('2', 'Can a Sideways Elevator Help Designers Build Taller Skyscrapers?')");
+				stmt[0].execute("INSERT INTO DELTABLE(ID_, RANDOMTXT) VALUES('3', 'Can a Bernie Sanders Ally Win the Maryland Governor''s Mansion?')");
+				for (int i = 0; i < conn.length; i++) {
+					assertTableContains(i, conn[i], TBL, "ID_", "1");
+					assertTableContains(i, conn[i], TBL, "ID_", "2");
+					assertTableContains(i, conn[i], TBL, "ID_", "3");
+				}
+
+				stmt[0].execute("DELETE FROM DELTABLE WHERE ID_ = '1'");
+				for (int i = 0; i < conn.length; i++) {
+					assertTableDoesNotContain(i, conn[i], TBL, "ID_", "1");
+					assertTableContains(i, conn[i], TBL, "ID_", "2");
+					assertTableContains(i, conn[i], TBL, "ID_", "3");
+				}
+			} catch (Exception e) {
+				msgs.add(e.toString());
+			} finally {
+				for (int i = 0; i < stmt.length; i++) {
+					if (stmt[i] != null)
+						stmt[i].close();
+				}
+				for (int i = 0; i < conn.length; i++) {
+					if (conn[i] != null)
+						conn[i].close();
+				}
+			}
+		} catch (Exception e) {
+			msgs.add(e.toString());
+		}
+		return msgs;
+	}
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/tests/Test_Insert.java b/mdbc-server/src/main/java/org/onap/music/mdbc/tests/Test_Insert.java
new file mode 100755
index 0000000..1a5cbed
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/tests/Test_Insert.java
@@ -0,0 +1,113 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc.tests;
+
+import java.sql.Connection;
+import java.sql.ResultSet;
+import java.sql.Statement;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.json.JSONArray;
+import org.json.JSONObject;
+
+/**
+ * Test that INSERTs work to the original DB, and are correctly copied to replica DBs.
+ *
+ * @author Robert Eby
+ */
+public class Test_Insert extends Test {
+	private final String PERSON = "PERSON";
+	private final String SONG   = "SONG";
+
+	@Override
+	public List<String> run(JSONObject config) {
+		List<String> msgs = new ArrayList<String>();
+		JSONArray connections = config.getJSONArray("connections");
+		Connection[] conn = new Connection[connections.length()];
+		Statement[] stmt = new Statement[conn.length];
+		try {
+			for (int i = 0; i < conn.length; i++) {
+				conn[i] = getDBConnection(buildProperties(config, i));
+				assertNotNull(conn[i]);
+				stmt[i] = conn[i].createStatement();
+				assertNotNull(stmt[i]);
+			}
+
+			try {
+				for (int i = 0; i < conn.length; i++) {
+					conn[i].setAutoCommit(true);
+					stmt[i].execute("CREATE TABLE IF NOT EXISTS PERSON(ID_ varchar(255), NAME varchar(255), SSN varchar(255), primary key (ID_))");
+				}
+				stmt[0].execute("INSERT INTO PERSON(ID_, NAME, SSN) VALUES('1', 'Zaphod', '111-22-3333')");
+				stmt[0].execute("INSERT INTO PERSON(ID_, NAME, SSN) VALUES('2', 'Ripley', '444-55-6666')");
+				stmt[0].execute("INSERT INTO PERSON(ID_, NAME, SSN) VALUES('3', 'Spock',  '777-88-9999')");
+				for (int i = 0; i < conn.length; i++) {
+					assertTableContains(i, conn[i], PERSON, "ID_", "1");
+					assertTableContains(i, conn[i], PERSON, "ID_", "2");
+					assertTableContains(i, conn[i], PERSON, "ID_", "3");
+				}
+
+				stmt[0].execute("UPDATE PERSON SET NAME = 'Jabba' WHERE ID_ = '2'");
+				for (int i = 0; i < conn.length; i++) {
+					ResultSet rs = getRow(conn[i], PERSON, "ID_", "2");
+					if (rs.next()) {
+						String v = rs.getString("NAME");
+						if (!v.equals("Jabba"))
+							throw new Exception("Table PERSON, row with ID_ = '2' was not updated.");
+					} else {
+						throw new Exception("Table PERSON does not have a row with ID_ = '2'");
+					}
+					rs.close();
+				}
+
+				for (int i = 0; i < conn.length; i++) {
+					stmt[i].execute("CREATE TABLE IF NOT EXISTS SONG(ID_ varchar(255), PREF int, ARIA varchar(255), primary key (ID_, PREF))");
+				}
+				stmt[0].execute("INSERT INTO SONG(ID_, PREF, ARIA) VALUES('1', 1, 'Nessun Dorma')");
+				stmt[0].execute("INSERT INTO SONG(ID_, PREF, ARIA) VALUES('2', 5, 'O mio Bambino Caro')");
+				stmt[0].execute("INSERT INTO SONG(ID_, PREF, ARIA) VALUES('2', 2, 'Sweet Georgia Brown')");
+				stmt[0].execute("INSERT INTO SONG(ID_, PREF, ARIA) VALUES('3', 77, 'Mud Flats Blues')");
+				stmt[0].execute("INSERT INTO SONG(ID_, PREF, ARIA) VALUES('3', 69, 'Me & Mr Jones')");
+				for (int i = 0; i < conn.length; i++) {
+					assertTableContains(i, conn[i], SONG, "ID_", "1", "PREF", 1);
+					assertTableContains(i, conn[i], SONG, "ID_", "2", "PREF", 5);
+					assertTableContains(i, conn[i], SONG, "ID_", "2", "PREF", 2);
+					assertTableContains(i, conn[i], SONG, "ID_", "3", "PREF", 77);
+					assertTableContains(i, conn[i], SONG, "ID_", "3", "PREF", 69);
+				}
+			} catch (Exception e) {
+				msgs.add(e.toString());
+			} finally {
+				for (int i = 0; i < stmt.length; i++) {
+					if (stmt[i] != null)
+						stmt[i].close();
+				}
+				for (int i = 0; i < conn.length; i++) {
+					if (conn[i] != null)
+						conn[i].close();
+				}
+			}
+		} catch (Exception e) {
+			msgs.add(e.toString());
+		}
+		return msgs;
+	}
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/tests/Test_Transactions.java b/mdbc-server/src/main/java/org/onap/music/mdbc/tests/Test_Transactions.java
new file mode 100755
index 0000000..4f31b7e
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/tests/Test_Transactions.java
@@ -0,0 +1,93 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc.tests;
+
+import java.sql.Connection;
+import java.sql.Statement;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.json.JSONArray;
+import org.json.JSONObject;
+
+/**
+ * Test that transactions work between the original DB, and replica DBs.
+ *
+ * @author Robert Eby
+ */
+public class Test_Transactions extends Test {
+	private final String TBL = "TRANSTEST";
+
+	@Override
+	public List<String> run(JSONObject config) {
+		List<String> msgs = new ArrayList<String>();
+		JSONArray connections = config.getJSONArray("connections");
+		Connection[] conn = new Connection[connections.length()];
+		Statement[] stmt = new Statement[conn.length];
+		try {
+			for (int i = 0; i < conn.length; i++) {
+				conn[i] = getDBConnection(buildProperties(config, i));
+				assertNotNull(conn[i]);
+				stmt[i] = conn[i].createStatement();
+				assertNotNull(stmt[i]);
+			}
+
+			try {
+				for (int i = 0; i < conn.length; i++) {
+					conn[i].setAutoCommit(true);
+					stmt[i].execute("CREATE TABLE IF NOT EXISTS TRANSTEST(ID_ varchar(12), STUFF varchar(255), primary key (ID_))");
+					conn[i].setAutoCommit(false);
+				}
+				stmt[0].execute("INSERT INTO TRANSTEST(ID_, STUFF) VALUES('1', 'CenturyLink Now Under Fire on All Sides For Fraudulent Billing')");
+				stmt[0].execute("INSERT INTO TRANSTEST(ID_, STUFF) VALUES('2', 'Netflix Now in Half of All Broadband Households, Study Says')");
+				stmt[0].execute("INSERT INTO TRANSTEST(ID_, STUFF) VALUES('3', 'Private Data Of 6 Million Verizon Customers Exposed')");
+				assertTableContains(0, conn[0], TBL, "ID_", "1");
+				assertTableContains(0, conn[0], TBL, "ID_", "2");
+				assertTableContains(0, conn[0], TBL, "ID_", "3");
+				for (int i = 1; i < conn.length; i++) {
+					assertTableDoesNotContain(i, conn[i], TBL, "ID_", "1");
+					assertTableDoesNotContain(i, conn[i], TBL, "ID_", "2");
+					assertTableDoesNotContain(i, conn[i], TBL, "ID_", "3");
+				}
+				conn[0].commit();
+				for (int i = 0; i < conn.length; i++) {
+					assertTableContains(i, conn[i], TBL, "ID_", "1");
+					assertTableContains(i, conn[i], TBL, "ID_", "2");
+					assertTableContains(i, conn[i], TBL, "ID_", "3");
+				}
+				
+			} catch (Exception e) {
+				msgs.add(e.toString());
+			} finally {
+				for (int i = 0; i < stmt.length; i++) {
+					if (stmt[i] != null)
+						stmt[i].close();
+				}
+				for (int i = 0; i < conn.length; i++) {
+					if (conn[i] != null)
+						conn[i].close();
+				}
+			}
+		} catch (Exception e) {
+			msgs.add(e.toString());
+		}
+		return msgs;
+	}
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/tests/package-info.java b/mdbc-server/src/main/java/org/onap/music/mdbc/tests/package-info.java
new file mode 100755
index 0000000..aac0d43
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/tests/package-info.java
@@ -0,0 +1,185 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+
+/**
+ * <p>
+ * This package provides a testing harness to test the various features of MDBC against
+ * multiple combinations of database and MUSIC mixins.  The configurations (consisting of
+ * database information and mixin combinations) to test, as well as the specific tests to
+ * run are all defined in the configuration file <code>test.json</code>.
+ * </p>
+ * <p>
+ * To run the tests against all the configurations specified in /tests.json, do the following:
+ * </p>
+ * <pre>
+ * 	java org.onap.music.mdbc.tests.MAIN [ configfile ]
+ * </pre>
+ * <p>
+ * It is assumed that a copy of Cassandra is running locally on port 9042,
+ * that a copy of H2 server is is running locally on port 8082,
+ * and that a copy of MySQL (or MariaDB) is running locally on port 3306.
+ * These can be adjusted by editing the /tests.json file.
+ * </p>
+ * <p>
+ * When building a copy of MDBC for production use, this package can be safely removed.
+ * </p>
+ * <p>
+ * The initial copy of <i>tests.json</i> is as follows:
+ * </p>
+ * <pre>
+ * {
+ *	"tests": [
+ *		"org.onap.music.mdbc.tests.Test_Insert",
+ *		"org.onap.music.mdbc.tests.Test_Delete",
+ *		"org.onap.music.mdbc.tests.Test_Transactions"
+ *	],
+ *	"configs": [
+ *		{
+ *			"description": "H2 with Cassandra with two connections",
+ *			"MDBC_DB_MIXIN": "h2",
+ *			"MDBC_MUSIC_MIXIN": "cassandra",
+ *			"replicas": "0,1",
+ *			"music_keyspace": "mdbctest1",
+ *			"music_address": "localhost",
+ *			"music_rfactor": "1",
+ *			"connections": [
+ *				{
+ *					"name": "Connection 0",
+ *					"url": "jdbc:mdbc:mem:db0",
+ *					"user": "",
+ *					"password": "",
+ *					"myid": "0"
+ *				},
+ *				{
+ *					"name": "Connection 1",
+ *					"url": "jdbc:mdbc:mem:db1",
+ *					"user": "",
+ *					"password": "",
+ *					"myid": "1"
+ *				}
+ *			]
+ *		},
+ *		{
+ *			"description": "H2 with Cassandra2 with three connections",
+ *			"MDBC_DB_MIXIN": "h2",
+ *			"MDBC_MUSIC_MIXIN": "cassandra2",
+ *			"replicas": "0,1,2",
+ *			"music_keyspace": "mdbctest2",
+ *			"music_address": "localhost",
+ *			"music_rfactor": "1",
+ *			"user": "",
+ *			"password": "",
+ *			"connections": [
+ *				{
+ *					"name": "Connection 0",
+ *					"url": "jdbc:mdbc:mem:db0",
+ *					"myid": "0"
+ *				},
+ *				{
+ *					"name": "Connection 1",
+ *					"url": "jdbc:mdbc:mem:db1",
+ *					"myid": "1"
+ *				},
+ *				{
+ *					"name": "Connection 2",
+ *					"url": "jdbc:mdbc:mem:db2",
+ *					"myid": "2"
+ *				}
+ *			]
+ *		},
+ *		{
+ *			"description": "H2 Server with Cassandra2 with two connections",
+ *			"MDBC_DB_MIXIN": "h2server",
+ *			"MDBC_MUSIC_MIXIN": "cassandra2",
+ *			"replicas": "0,1",
+ *			"music_keyspace": "mdbctest3",
+ *			"music_address": "localhost",
+ *			"music_rfactor": "1",
+ *			"connections": [
+ *				{
+ *					"name": "Connection 0",
+ *					"url": "jdbc:mdbc:tcp://localhost/mdbc0",
+ *					"user": "",
+ *					"password": "",
+ *					"myid": "0"
+ *				},
+ *				{
+ *					"name": "Connection 1",
+ *					"url": "jdbc:mdbc:tcp://localhost/mdbc1",
+ *					"user": "",
+ *					"password": "",
+ *					"myid": "1"
+ *				}
+ *			]
+ *		},
+ *		{
+ *			"description": "MySQL with Cassandra2 with two connections",
+ *			"MDBC_DB_MIXIN": "mysql",
+ *			"MDBC_MUSIC_MIXIN": "cassandra2",
+ *			"replicas": "0,1,2",
+ *			"music_keyspace": "mdbctest4",
+ *			"music_address": "localhost",
+ *			"music_rfactor": "1",
+ *			"user": "root",
+ *			"password": "abc123",
+ *			"connections": [
+ *				{
+ *					"name": "Connection 0",
+ *					"url": "jdbc:mdbc://127.0.0.1:3306/mdbc",
+ *					"myid": "0"
+ *				},
+ *				{
+ *					"name": "Connection 1",
+ *					"url": "jdbc:mdbc://127.0.0.1:3306/mdbc2",
+ *					"myid": "1"
+ *				}
+ *			]
+ *		},
+ *		{
+ *			"description": "H2 (DB #1) and MySQL (DB #2) with Cassandra2",
+ *			"MDBC_MUSIC_MIXIN": "cassandra2",
+ *			"replicas": "0,1",
+ *			"music_keyspace": "mdbctest5",
+ *			"music_address": "localhost",
+ *			"music_rfactor": "1",
+ *			"connections": [
+ *				{
+ *					"name": "Connection 0",
+ *					"MDBC_DB_MIXIN": "h2",
+ *					"url": "jdbc:mdbc:mem:db9",
+ *					"user": "",
+ *					"password": "",
+ *					"myid": "0"
+ *				},
+ *				{
+ *					"name": "Connection 1",
+ *					"MDBC_DB_MIXIN": "mysql",
+ *					"url": "jdbc:mdbc://127.0.0.1:3306/mdbc3",
+ *					"user": "root",
+ *					"password": "abc123",
+ *					"myid": "1"
+ *				}
+ *			]
+ *		}
+ *	]
+ * }
+ * </pre>
+ */
+package org.onap.music.mdbc.tests;
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/tools/CreateNodeConfigurations.java b/mdbc-server/src/main/java/org/onap/music/mdbc/tools/CreateNodeConfigurations.java
new file mode 100644
index 0000000..00f6616
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/tools/CreateNodeConfigurations.java
@@ -0,0 +1,89 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc.tools;
+
+import org.onap.music.exceptions.MDBCServiceException;
+import org.onap.music.logging.EELFLoggerDelegate;
+import org.onap.music.mdbc.configurations.NodeConfiguration;
+import org.onap.music.mdbc.configurations.TablesConfiguration;
+import com.beust.jcommander.JCommander;
+import com.beust.jcommander.Parameter;
+
+import java.io.FileNotFoundException;
+import java.util.List;
+
+public class CreateNodeConfigurations {
+    public static final EELFLoggerDelegate LOG = EELFLoggerDelegate.getLogger(CreateNodeConfigurations.class);
+
+    private String tables;
+    @Parameter(names = { "-t", "--table-configurations" }, required = true,
+            description = "This is the input file that is going to have the configuration for all the tables and partitions")
+    private String tableConfigurationsFile;
+    @Parameter(names = { "-b", "--basename" }, required = true,
+            description = "This base name for all the outputs files that are going to be created")
+    private String basename;
+    @Parameter(names = { "-o", "--output-dir" }, required = true,
+            description = "This is the output directory that is going to contain all the configuration file to be generated")
+    private String outputDirectory;
+    @Parameter(names = { "-h", "-help", "--help" }, help = true,
+            description = "Print the help message")
+    private boolean help = false;
+
+    private TablesConfiguration inputConfig;
+
+    public CreateNodeConfigurations(){}
+
+
+    public void readInput(){
+        try {
+            inputConfig = TablesConfiguration.readJsonFromFile(tableConfigurationsFile);
+        } catch (FileNotFoundException e) {
+            LOG.error("Input file is invalid or not found");
+            System.exit(1);
+        }
+    }
+
+    public void createAndSaveNodeConfigurations(){
+        List<NodeConfiguration> nodes = null;
+        try {
+            nodes = inputConfig.initializeAndCreateNodeConfigurations();
+        } catch (MDBCServiceException e) {
+            e.printStackTrace();
+        }
+        int counter = 0;
+        for(NodeConfiguration nodeConfig : nodes){
+            String name = (nodeConfig.nodeName==null||nodeConfig.nodeName.isEmpty())?Integer.toString(counter++): nodeConfig.nodeName;
+            nodeConfig.saveToFile(outputDirectory+"/"+basename+"-"+name+".json");
+        }
+    }
+
+    public static void main(String[] args) {
+        CreateNodeConfigurations configs = new CreateNodeConfigurations();
+        @SuppressWarnings("deprecation")
+        JCommander jc = new JCommander(configs, args);
+        if (configs.help) {
+            jc.usage();
+            System.exit(1);
+            return;
+        }
+        configs.readInput();
+        configs.createAndSaveNodeConfigurations();
+    }
+}
diff --git a/mdbc-server/src/main/java/org/onap/music/mdbc/tools/CreatePartition.java b/mdbc-server/src/main/java/org/onap/music/mdbc/tools/CreatePartition.java
new file mode 100644
index 0000000..d515539
--- /dev/null
+++ b/mdbc-server/src/main/java/org/onap/music/mdbc/tools/CreatePartition.java
@@ -0,0 +1,77 @@
+/*
+ * ============LICENSE_START====================================================
+ * org.onap.music.mdbc
+ * =============================================================================
+ * Copyright (C) 2018 AT&T Intellectual Property. All rights reserved.
+ * =============================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END======================================================
+ */
+package org.onap.music.mdbc.tools;
+
+import org.onap.music.logging.EELFLoggerDelegate;
+import org.onap.music.mdbc.configurations.NodeConfiguration;
+import com.beust.jcommander.JCommander;
+import com.beust.jcommander.Parameter;
+
+import java.util.UUID;
+
+public class CreatePartition {
+    public static final EELFLoggerDelegate LOG = EELFLoggerDelegate.getLogger(CreatePartition.class);
+
+    @Parameter(names = { "-t", "--tables" }, required = true,
+           description = "This is the tables that are assigned to this ")
+   private String tables;
+    @Parameter(names = { "-f", "--file" }, required = true,
+            description = "This is the output file that is going to have the configuration for the ranges")
+    private String file;
+    @Parameter(names = { "-i", "--mri-index" }, required = true,
+            description = "Index in the Mri Table")
+    private String mriIndex;
+    @Parameter(names = { "-m", "--mri-table-name" }, required = true,
+            description = "Mri Table name")
+    private String mriTable;
+     @Parameter(names = { "-r", "--music-tx-digest-table-name" }, required = true,
+                         description = "Music Transaction Digest Table name")
+     private String mtxdTable;
+    @Parameter(names = { "-h", "-help", "--help" }, help = true,
+            description = "Print the help message")
+    private boolean help = false;
+
+    NodeConfiguration config;
+
+    public CreatePartition(){
+    }
+
+    public void convert(){
+        config = new NodeConfiguration(tables, UUID.fromString(mriIndex),mriTable,"test","", mtxdTable);
+    }
+
+    public void saveToFile(){
+        config.saveToFile(file);
+    }
+
+    public static void main(String[] args) {
+
+        CreatePartition newPartition = new CreatePartition();
+        @SuppressWarnings("deprecation")
+        JCommander jc = new JCommander(newPartition, args);
+        if (newPartition.help) {
+            jc.usage();
+            System.exit(1);
+            return;
+        }
+        newPartition.convert();
+        newPartition.saveToFile();
+    }
+}