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/*-
* ============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);
}
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