/*
* Copyright (c) 2002-2009 "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 Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.index.impl;
import org.neo4j.graphdb.GraphDatabaseService;
import org.neo4j.graphdb.Node;
import org.neo4j.graphdb.Transaction;
import org.neo4j.index.IndexService;
/**
* Basic implementation of an {@link IndexService} with common functionality.
*/
public abstract class GenericIndexService implements IndexService
{
private final GraphDatabaseService graphDb;
protected abstract void removeIndexThisTx( Node node, String key,
Object value );
protected abstract void indexThisTx( Node node, String key, Object value );
/**
* @param graphDb the {@link GraphDatabaseService} to associate this index
* to.
*/
public GenericIndexService( GraphDatabaseService graphDb )
{
if ( graphDb == null )
{
throw new IllegalArgumentException( "Null graph database service" );
}
this.graphDb = graphDb;
}
public void index( Node node, String key, Object value )
{
indexThisTx( node, key, value );
}
public void removeIndex( Node node, String key, Object value )
{
removeIndexThisTx( node, key, value );
}
protected GraphDatabaseService getGraphDb()
{
return graphDb;
}
protected Transaction beginTx()
{
return graphDb.beginTx();
}
public void shutdown()
{
}
}