1 files changed, 98 insertions, 0 deletions
diff --git a/ajsc-aai/src/main/java/org/openecomp/aai/serialization/engines/query/QueryEngine.java b/ajsc-aai/src/main/java/org/openecomp/aai/serialization/engines/query/QueryEngine.java
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+++ b/ajsc-aai/src/main/java/org/openecomp/aai/serialization/engines/query/QueryEngine.java
@@ -0,0 +1,98 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * org.openecomp.aai
+ * ================================================================================
+ * 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.aai.serialization.engines.query;
+
+import java.util.List;
+
+import org.apache.tinkerpop.gremlin.structure.Direction;
+import org.apache.tinkerpop.gremlin.structure.Graph;
+import org.apache.tinkerpop.gremlin.structure.Vertex;
+import org.openecomp.aai.query.builder.QueryBuilder;
+import org.openecomp.aai.serialization.engines.TransactionalGraphEngine;
+
+public abstract class QueryEngine {
+
+	protected TransactionalGraphEngine dbEngine = null;
+
+	/**
+	 * Instantiates a new query engine.
+	 *
+	 * @param graphEngine the graph engine
+	 */
+	public QueryEngine (TransactionalGraphEngine graphEngine) {
+		this.dbEngine = graphEngine;
+	}
+
+	/**
+	 * Execute query.
+	 *
+	 * @param g the g
+	 * @param query the query
+	 * @return the list
+	 */
+	public abstract List<Vertex> executeQuery(Graph g, QueryBuilder query);
+	
+	/**
+	 * Execute parent query.
+	 *
+	 * @param g the g
+	 * @param query the query
+	 * @return the list
+	 */
+	public abstract List<Vertex> executeParentQuery(Graph g, QueryBuilder query);
+	
+	/**
+	 * Find parents.
+	 *
+	 * @param start the start
+	 * @return the list
+	 */
+	public abstract List<Vertex> findParents(Vertex start);
+	
+	/**
+	 * Find children.
+	 *
+	 * @param start the start
+	 * @return the list
+	 */
+	public abstract List<Vertex> findChildren(Vertex start);
+	
+	/**
+	 * Find deletable.
+	 *
+	 * @param start the start
+	 * @return the list
+	 */
+	public abstract List<Vertex> findDeletable(Vertex start);
+	
+	/**
+	 * Find related vertices.
+	 *
+	 * @param start the start
+	 * @param direction the direction
+	 * @param label the label
+	 * @param nodeType the node type
+	 * @return the list
+	 */
+	public abstract List<Vertex> findRelatedVertices(Vertex start, Direction direction, String label, String nodeType);
+
+
+}