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ServerExecutionEngine.java
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ServerExecutionEngine.java
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/*
* Copyright (c) 2002-2016 "Neo Technology,"
* Network Engine for Objects in Lund AB [http://neotechnology.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.cypher.internal.javacompat;
import java.util.Map;
import org.neo4j.cypher.CypherException;
import org.neo4j.graphdb.GraphDatabaseService;
import org.neo4j.graphdb.Result;
import org.neo4j.kernel.impl.query.QueryExecutionEngine;
import org.neo4j.kernel.impl.query.QueryExecutionKernelException;
import org.neo4j.kernel.impl.query.QuerySession;
import org.neo4j.logging.LogProvider;
/**
* This is a variant of {@link ExecutionEngine} that provides additional
* callbacks that are used by REST server's transactional endpoints for Cypher
*
* This is not public API
*/
public class ServerExecutionEngine extends ExecutionEngine implements QueryExecutionEngine
{
private org.neo4j.cypher.internal.ServerExecutionEngine serverExecutionEngine;
public ServerExecutionEngine( GraphDatabaseService database, LogProvider logProvider )
{
super( database, logProvider );
}
@Override
protected org.neo4j.cypher.internal.ExecutionEngine createInnerEngine( GraphDatabaseService database, LogProvider logProvider )
{
return serverExecutionEngine = new org.neo4j.cypher.internal.ServerExecutionEngine( database, logProvider );
}
@Override
public Result executeQuery( String query, Map<String, Object> parameters, QuerySession querySession ) throws
QueryExecutionKernelException
{
try
{
return new ExecutionResult( serverExecutionEngine.execute( query, parameters, querySession ) );
}
catch ( CypherException e )
{
throw new QueryExecutionKernelException( e );
}
}
@Override
public boolean isPeriodicCommit( String query )
{
return serverExecutionEngine.isPeriodicCommit( query );
}
@Override
public Result profileQuery( String query, Map<String, Object> parameters, QuerySession session ) throws QueryExecutionKernelException
{
try
{
return new ExecutionResult( serverExecutionEngine.profile( query, parameters, session ) );
}
catch ( CypherException e )
{
throw new QueryExecutionKernelException( e );
}
}
}