Package org.neo4j.graphdb

Examples of org.neo4j.graphdb.GraphDatabaseService.beginTx()

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    {
        initializeDbs( 1 );
        GraphDatabaseService haDb1 = haDbs.get( 0 );
        GraphDatabaseService mDb = master.getGraphDb();

        Transaction tx = mDb.beginTx();
        Node masterNode;
        try
        {
            masterNode = mDb.createNode();
            mDb.getReferenceNode().createRelationshipTo( masterNode, CommonJobs.REL_TYPE );
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        final GraphDatabaseService graphDb = newGraphDbService();
        final Index<Node> nodeIndex = graphDb.index().forNodes( "node-index" );
        final Index<Relationship> relIndex = graphDb.index().forRelationships( "rel-index" );
        final RelationshipType relType = DynamicRelationshipType.withName( "recovery" );
       
        graphDb.beginTx();
        Random random = new Random();
        Thread stopper = new Thread()
        {
            @Override public void run()
            {
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    @Test
    public void testAsLittleAsPossibleRecoveryScenario() throws Exception
    {
        GraphDatabaseService db = newGraphDbService();
        Index<Node> index = db.index().forNodes( "my-index" );
        db.beginTx();
        Node node = db.createNode();
        index.add( node, "key", "value" );
        db.shutdown();
       
        // This doesn't seem to trigger recovery... it really should
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{
    public static void main( String[] args )
    {
        GraphDatabaseService db = new EmbeddedGraphDatabase( args[0] );
        Index<Node> index = db.index().forNodes( "index" );
        Transaction tx = db.beginTx();
        try
        {
            Node node = db.createNode();
            index.add( node, "key", "value" );
            index.delete();
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    {
        String path = args[0];
        String indexName = "myIndex";
        GraphDatabaseService db = new EmbeddedGraphDatabase( path );
        Index<Relationship> index = db.index().forRelationships( indexName );
        Transaction tx = db.beginTx();
        Node node = db.createNode();
        Relationship relationship = db.getReferenceNode().createRelationshipTo( node, DynamicRelationshipType.withName( "KNOWS" ) );
        index.add( relationship, "key", "value" );
        tx.success();
        tx.finish();
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        @Override
        public void run()
        {
          while ( true )
          {
            Transaction tx = db.beginTx();
            try
            {
              for ( int i = 0; i < 100; i++ )
              {
                                String key = keys[i%keys.length];
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        long node = inserter.createNode( properties );
        persons.add( node, properties );
        indexProvider.shutdown();
        inserter.shutdown();
        GraphDatabaseService graphDb = new EmbeddedGraphDatabase( path );
        Transaction tx = graphDb.beginTx();
        try
        {
            IndexManager indexManager = graphDb.index();
            Assert.assertFalse( indexManager.existsForRelationships( indexName ) );
            Assert.assertTrue( indexManager.existsForNodes( indexName ) );
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    public void testMultipleNeos()
    {
        String storePath = getStorePath( "test-neo2" );
        deleteFileOrDirectory( storePath );
        GraphDatabaseService graphDb2 = new EmbeddedGraphDatabase( storePath );
        Transaction tx2 = graphDb2.beginTx();
        getGraphDb().createNode();
        graphDb2.createNode();
        tx2.success();
        tx2.finish();
        graphDb2.shutdown();
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  @Nonnull
  private T deserialize( @Nonnull AbstractNeo4jSerializer<T> serializer, @Nonnull String serialized ) throws IOException {
    GraphDatabaseService db = neo4jRule.createDb();

    //Fill the db initially
    try ( Transaction tx = db.beginTx() ) {
      ExecutionResult result = new ExecutionEngine( db ).execute( serialized );
      tx.success();
    }

    try ( Transaction tx = db.beginTx() ) {
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    try ( Transaction tx = db.beginTx() ) {
      ExecutionResult result = new ExecutionEngine( db ).execute( serialized );
      tx.success();
    }

    try ( Transaction tx = db.beginTx() ) {
      return serializer.deserialize( db.getNodeById( 0 ) );
    }
  }

  /**
 
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