
org.neo4j.kernel.NodeAutoIndexerImpl Maven / Gradle / Ivy
/**
* Copyright (c) 2002-2013 "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 .
*/
package org.neo4j.kernel;
import org.neo4j.graphdb.Node;
import org.neo4j.graphdb.config.Setting;
import org.neo4j.graphdb.factory.GraphDatabaseSettings;
import org.neo4j.graphdb.index.Index;
import org.neo4j.kernel.configuration.Config;
import org.neo4j.kernel.impl.core.NodeManager;
/**
* Implementation of an AutoIndexer for Node primitives. It
* defines the auto index name, the configuration properties
* names and a wrapper for adapting read write indexes to read only
* ones so that they are safe to return.
*/
class NodeAutoIndexerImpl extends AbstractAutoIndexerImpl
{
public static abstract class Configuration
{
public static final Setting node_auto_indexing = GraphDatabaseSettings.node_auto_indexing;
public static final Setting node_keys_indexable = GraphDatabaseSettings.node_keys_indexable;
}
static final String NODE_AUTO_INDEX = "node_auto_index";
private Config config;
private IndexManagerImpl indexManager;
private NodeManager nodeManager;
public NodeAutoIndexerImpl( Config config, IndexManagerImpl indexManager, NodeManager nodeManager )
{
super();
this.config = config;
this.indexManager = indexManager;
this.nodeManager = nodeManager;
}
@Override
public void init()
throws Throwable
{
}
@Override
public void start()
{
setEnabled( config.get( Configuration.node_auto_indexing ) );
propertyKeysToInclude.addAll( parseConfigList( config.get( Configuration.node_keys_indexable ) ) );
}
@Override
public void stop()
throws Throwable
{
}
@Override
public void shutdown()
throws Throwable
{
}
@Override
protected Index getIndexInternal()
{
return indexManager.getOrCreateNodeIndex(
NODE_AUTO_INDEX, null );
}
@Override
public void setEnabled( boolean enabled )
{
super.setEnabled( enabled );
if ( enabled )
{
nodeManager.addNodePropertyTracker(
this );
}
else
{
nodeManager.removeNodePropertyTracker(
this );
}
}
}
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