1 files changed, 65 insertions, 0 deletions
diff --git a/policy-core/src/main/java/org/openecomp/policy/drools/properties/Startable.java b/policy-core/src/main/java/org/openecomp/policy/drools/properties/Startable.java
new file mode 100644
index 00000000..bb6334a2
--- /dev/null
+++ b/policy-core/src/main/java/org/openecomp/policy/drools/properties/Startable.java
@@ -0,0 +1,65 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * policy-core
+ * ================================================================================
+ * Copyright (C) 2017 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.openecomp.policy.drools.properties;
+
+/**
+ * Declares the Startable property of any class class implementing
+ * this interface.   This implies that the implementing class supports
+ * start-like operations.
+ */
+public interface Startable {
+	
+	/**
+	 * Start operation.  This operation starts the entity.
+	 * 
+	 * @return boolean.  true if the start operation was successful, 
+	 * otherwise false.
+	 * @throws IllegalStateException. if the element is in a state that
+	 * conflicts with the start operation.
+	 */
+	public boolean start() throws IllegalStateException;
+	
+	/**
+	 * Stop operation.  The entity can be restarted again by invoking
+	 * the start operation.
+	 * 
+	 * @return boolean.  true if the stop operation was successful, 
+	 * otherwise false.
+	 * @throws IllegalStateException. if the element is in a state that
+	 * conflicts with the stop operation.
+	 */
+	public boolean stop()throws IllegalStateException;
+	
+	/**
+	 * shutdown operation.   The terminate operation yields the entity
+	 * unusuable.  It cannot be (re)started.
+	 * 
+	 * @throws IllegalStateException. if the element is in a state that
+	 * conflicts with the stop operation.
+	 */
+	public void shutdown()throws IllegalStateException;
+	
+	/**
+	 * is it alive?
+	 * @return boolean.  true if alive, otherwise false
+	 */
+	public boolean isAlive();
+}