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Neo4j Community Edition
There is a newer version: 5.26.0
/*
 * Copyright (c) 2002-2018 "Neo4j,"
 * Neo4j Sweden AB [http://neo4j.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.graphdb.facade.embedded;

import java.io.File;
import java.util.Map;

import org.neo4j.graphdb.GraphDatabaseService;
import org.neo4j.graphdb.facade.GraphDatabaseDependencies;
import org.neo4j.graphdb.facade.GraphDatabaseFacadeFactory;
import org.neo4j.graphdb.factory.GraphDatabaseSettings;
import org.neo4j.graphdb.factory.module.CommunityEditionModule;
import org.neo4j.kernel.configuration.Config;
import org.neo4j.kernel.impl.factory.DatabaseInfo;
import org.neo4j.kernel.impl.factory.GraphDatabaseFacade;

import static org.neo4j.graphdb.facade.GraphDatabaseDependencies.newDependencies;
import static org.neo4j.helpers.collection.Iterables.append;
import static org.neo4j.helpers.collection.Iterables.asList;

/**
 * An implementation of {@link GraphDatabaseService} that is used to embed Neo4j
 * in an application. You typically instantiate it by using
 * {@link org.neo4j.graphdb.factory.GraphDatabaseFactory} like so:
 * 
 *
 * 
 * 
 * GraphDatabaseService graphDb = new GraphDatabaseFactory().newEmbeddedDatabase( "var/graphdb" );
 * // ... use Neo4j
 * graphDb.shutdown();
 * 
 * 
 * 
 * For more information, see {@link GraphDatabaseService}.
 */
public class EmbeddedGraphDatabase extends GraphDatabaseFacade
{
    /**
     * Internal constructor used by {@link org.neo4j.graphdb.factory.GraphDatabaseFactory}
     */
    public EmbeddedGraphDatabase( File storeDir,
                                  Map params,
                                  GraphDatabaseFacadeFactory.Dependencies dependencies )
    {
        create( storeDir, params, dependencies );
    }

    /**
     * Internal constructor used by ImpermanentGraphDatabase
     */
    protected EmbeddedGraphDatabase( File storeDir,
            Config config,
            GraphDatabaseFacadeFactory.Dependencies dependencies )
    {
        create( storeDir, config, dependencies );
    }

    protected void create( File storeDir, Map params,
            GraphDatabaseFacadeFactory.Dependencies dependencies )
    {
        GraphDatabaseDependencies newDependencies = newDependencies( dependencies )
                .settingsClasses( asList( append( GraphDatabaseSettings.class, dependencies.settingsClasses() ) ) );
        new GraphDatabaseFacadeFactory( DatabaseInfo.COMMUNITY, CommunityEditionModule::new )
                .initFacade( storeDir, params, newDependencies, this );
    }

    protected void create( File storeDir, Config config, GraphDatabaseFacadeFactory.Dependencies dependencies )
    {
        GraphDatabaseDependencies newDependencies = newDependencies( dependencies )
                .settingsClasses( asList( append( GraphDatabaseSettings.class, dependencies.settingsClasses() ) ) );
        new GraphDatabaseFacadeFactory( DatabaseInfo.COMMUNITY, CommunityEditionModule::new )
                .initFacade( storeDir, config, newDependencies, this );
    }
}