/**
* returns a traverser for all nodes that have a hero relationship and are connected to the hero
* collection node
*
* @return
*/
private Traverser getHeroesByCollectionNodeViaRest() {
TraversalDescription td =
RestTraversal.description()
.maxDepth(10)
.breadthFirst()
.relationships(RelTypes.HERO, Direction.OUTGOING);
return td.traverse(this.restmdg.getHeroesCollectionNode());
}
/**
* returns a traverser for all nodes that have an outgoing relationship of the type KNOWS
*
* @param person the startnode
* @return the Traverser
*/
private static Traverser getFriends(final Node person) {
TraversalDescription td =
RestTraversal.description()
.maxDepth(10)
.breadthFirst()
.relationships(RelTypes.KNOWS, Direction.OUTGOING)
.filter(Traversal.returnAllButStartNode());
return td.traverse(person);
}
@Test
public void testTraverseToNeighbour() {
final Relationship rel = relationship();
final TraversalDescription traversalDescription =
RestTraversal.description().maxDepth(1).breadthFirst();
System.out.println("traversalDescription = " + traversalDescription);
final Traverser traverser = traversalDescription.traverse(rel.getStartNode());
final Iterable<Node> nodes = traverser.nodes();
Assert.assertEquals(rel.getEndNode(), nodes.iterator().next());
}
/**
* returns a traverser for all nodes that have an outgoing relationship of the type HERO an are 3
* positions down in the path
*
* @return the Traverser
*/
private Traverser getHeroesViaRest() {
TraversalDescription td =
RestTraversal.description()
.maxDepth(3)
.breadthFirst()
.relationships(RelTypes.PERSONS_REFERENCE, Direction.OUTGOING)
.relationships(RelTypes.HEROES_REFERENCE, Direction.OUTGOING)
.relationships(RelTypes.HERO, Direction.OUTGOING)
.filter(ScriptLanguage.JAVASCRIPT, "position.length() == 3;");
return td.traverse(this.restmdg.getGraphDatabase().getReferenceNode());
}