Package org.neo4j.graphdb

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

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        GraphDatabaseService db = new EmbeddedGraphDatabase( PATH );
        Transaction tx = db.beginTx();
        Node prevNode = db.getReferenceNode();
        for ( int i = 0; i < 100; i++ )
        {
            Node node = db.createNode();
            Relationship rel = prevNode.createRelationshipTo( node, type );
            node.setProperty( "someKey" + i%10, i%15 );
            rel.setProperty( "since", System.currentTimeMillis() );
        }
        tx.success();
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    public void testReadOnlyOperationsAndNoTransaction()
    {
        GraphDatabaseService db = new EmbeddedGraphDatabase( PATH );

        Transaction tx = db.beginTx();
        Node node1 = db.createNode();
        Node node2 = db.createNode();
        Relationship rel = node1.createRelationshipTo( node2, withName( "TEST" ) );
        node1.setProperty( "key1", "value1" );
        rel.setProperty( "key1", "value1" );
        tx.success();
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    {
        GraphDatabaseService db = new EmbeddedGraphDatabase( PATH );

        Transaction tx = db.beginTx();
        Node node1 = db.createNode();
        Node node2 = db.createNode();
        Relationship rel = node1.createRelationshipTo( node2, withName( "TEST" ) );
        node1.setProperty( "key1", "value1" );
        rel.setProperty( "key1", "value1" );
        tx.success();
        tx.finish();
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        tx.finish();
       
        // make sure write operations still throw exception
        try
        {
            db.createNode();
            fail( "Write operation and no transaction should throw exception" );
        }
        catch ( NotInTransactionException e )
        { // good
        }
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    private DbRepresentation addMoreData( String path )
    {
        GraphDatabaseService db = startGraphDatabase( path );
        Transaction tx = db.beginTx();
        Node node = db.createNode();
        node.setProperty( "backup", "Is great" );
        db.getReferenceNode().createRelationshipTo( node,
                DynamicRelationshipType.withName( "LOVES" ) );
        tx.success();
        tx.finish();
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    private DbRepresentation createInitialDataSet( String path )
    {
        GraphDatabaseService db = startGraphDatabase( path );
        Transaction tx = db.beginTx();
        Node node = db.createNode();
        node.setProperty( "myKey", "myValue" );
        db.getReferenceNode().createRelationshipTo( node,
                DynamicRelationshipType.withName( "KNOWS" ) );
        tx.success();
        tx.finish();
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        Transaction transaction = service.beginTx();
        try
        {
            RelationshipIndex index = service.index().forRelationships( "exact" );
            // ...creation of the nodes and relationship
            Node node1 = service.createNode();
            Node node2 = service.createNode();
            String a_uuid = "xyz";
            Relationship relationship = node1.createRelationshipTo( node2, DynamicRelationshipType.withName( "related" ) );
            index.add( relationship, "uuid", a_uuid );
            // query
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        try
        {
            RelationshipIndex index = service.index().forRelationships( "exact" );
            // ...creation of the nodes and relationship
            Node node1 = service.createNode();
            Node node2 = service.createNode();
            String a_uuid = "xyz";
            Relationship relationship = node1.createRelationshipTo( node2, DynamicRelationshipType.withName( "related" ) );
            index.add( relationship, "uuid", a_uuid );
            // query
            IndexHits<Relationship> hits = index.get( "uuid", a_uuid, node1, node2 );
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        Transaction tx = mDb.beginTx();
        Node masterNode;
        try
        {
            masterNode = mDb.createNode();
            mDb.getReferenceNode().createRelationshipTo( masterNode, CommonJobs.REL_TYPE );
            tx.success();
        }
        finally
        {
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        try
        {
            stopper.start();
            for ( int i = 0; i < 50; i++ )
            {
                Node node = graphDb.createNode();
                Node otherNode = graphDb.createNode();
                Relationship rel = node.createRelationshipTo( otherNode, relType );
                for ( int ii = 0; ii < 3; ii++ )
                {
                    nodeIndex.add( node, keys[random.nextInt( keys.length )], random.nextInt() );
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