Examples of org.neo4j.graphdb.RelationshipType

org.neo4j.graphdb.RelationshipType
}
It's very important to note that a relationship type is uniquely identified by its name, not by any particular instance that implements this interface. This means that the proper way to check if two relationship types are equal is by invoking equals() on their {@link #name names}, NOT by using Java's identity operator (==) or equals() on the relationship type instances. A consequence of this is that you can NOT use relationship types in hashed collections such as {@link java.util.HashMap HashMap} and {@link java.util.HashSet HashSet}.
However, you usually want to check whether a specific relationship instance is of a certain type. That is best achieved with the {@link Relationship#isType Relationship.isType} method, such as:
```
if ( rel.isType( MyRelationshipTypes.CONTAINED_IN ) ) { ... } 
```

    }


    public Relationship getSingleRelationship( NodeManager nodeManager, RelationshipType type,
        Direction dir )
    {
        RelationshipType types[] = new RelationshipType[] { type };
        Iterator<Relationship> rels = new IntArrayIterator( getAllRelationshipsOfType( nodeManager,
                types ),
            this, dir, nodeManager, types );
        if ( !rels.hasNext() )
        {

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    }


    public Iterable<Relationship> getRelationships( NodeManager nodeManager, RelationshipType type,
        Direction dir )
    {
        RelationshipType types[] = new RelationshipType[] { type };
        return new IntArrayIterator( getAllRelationshipsOfType( nodeManager, types ),
            this, dir, nodeManager, types );
    }

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    {
        Node node1 = getGraphDb().createNode();
        Node node2 = getGraphDb().createNode();
        Relationship rel = node1.createRelationshipTo( node2, MyRelTypes.TEST );
        assertTrue( rel.isType( MyRelTypes.TEST ) );
        assertTrue( rel.isType( new RelationshipType()
        {
            public String name()
            {
                return MyRelTypes.TEST.name();
            }

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        for ( int i = 1; i < nodeSpace.length; i++ )
        {
            nodeSpace[i].setProperty( key, "" + i );
        }


        RelationshipType ise = MyRelTypes.TEST;
        RelationshipType clone = MyRelTypes.TEST_TRAVERSAL;


        // Bind it together
        // 
        //               ----(1)-------
        //              /      \       \

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        node1.createRelationshipTo( node2, MyRelTypes.TEST_TRAVERSAL );
        tx.success();
        tx.finish();
        tx = graphDb.beginTx();
        Set<Relationship> rels = new HashSet<Relationship>();
        RelationshipType types[] = new RelationshipType[] { 
            MyRelTypes.TEST, MyRelTypes.TEST2, MyRelTypes.TEST_TRAVERSAL };
        graphDb.getConfig().getGraphDbModule().getNodeManager().clearCache();
        
        for ( Relationship rel : node1.getRelationships( types ) )
        {

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    }
    
    @Test
    public void makeSureNodesAreTraversedInCorrectOrder()
    {
        RelationshipType next = DynamicRelationshipType.withName( "NEXT" );
        RelationshipType firstComment = DynamicRelationshipType.withName( "FIRST_COMMENT" );
        RelationshipType comment = DynamicRelationshipType.withName( "COMMENT" );
        RelationshipExpander expander =
            new OrderedByTypeExpander().add( firstComment ).add( comment ).add( next );
        Iterator<Node> itr = Traversal.description().depthFirst().expand(
                expander ).traverse( referenceNode() ).nodes().iterator();
        assertOrder( itr, "A1", "C1", "C2", "C3", "A2", "C4", "C5", "C6", "A3", "C7", "C8", "C9" );

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        assertNotNull( "Failure creating first node", firstNode );
        secondNode = getGraphDb().createNode();
        assertNotNull( "Failure creating second node", secondNode );
        rel = firstNode.createRelationshipTo( secondNode, MyRelTypes.TEST );
        assertNotNull( "Relationship is null", rel );
        RelationshipType relType = rel.getType();
        assertNotNull( "Relationship's type is is null", relType );


        // Verify that the node reports that it has a relationship of
        // the type we created above
        assertTrue( firstNode.getRelationships( relType ).iterator().hasNext() );

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    {
        InputDialog input = new InputDialog( null, NEW_RELTYPE_DIALOG_TITLE,
            NEW_RELTYPE_DIALOG_TEXT, null, null );
        if ( input.open() == OK && input.getReturnCode() == OK )
        {
            RelationshipType relType = provider.addFakeType( input.getValue() );
            switch ( extraAction )
            {
                case NONE:
                    return;
                case RELATIONSHIP:

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            }
            return graphDecorator.getRelationshipColor( rel );
        }
        else if ( o instanceof RelationshipType )
        {
            RelationshipType relType = (RelationshipType) o;
            return graphDecorator.getRelationshipColor( relType );
        }
        return null;
    }

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     * 
     * @param name the name of the relationship type
     */
    public RelationshipType addFakeType( final String name )
    {
        RelationshipType relType = DynamicRelationshipType.withName( name );
        fakeTypes.add( relType );
        notifyTypesListeners( new NeoclipseEvent( relType ) );
        return relType;
    }

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