@Test
public void shouldBeAbleToImplementAnonymousGraphQuery() throws Exception {
// given
GraphDatabaseService db = Db.impermanentDb();
Transaction tx = db.beginTx();
Node firstNode = db.createNode();
Node secondNode = db.createNode();
firstNode.createRelationshipTo(secondNode, withName("CONNECTED_TO"));
tx.success();
tx.finish();
GraphQuery query =
new GraphQuery() {
@Override
public Iterable<Node> execute(Node startNode) {
return startNode.traverse(
Traverser.Order.DEPTH_FIRST,
StopEvaluator.DEPTH_ONE,
ReturnableEvaluator.ALL_BUT_START_NODE,
withName("CONNECTED_TO"),
Direction.OUTGOING);
}
};
// when
Iterable<Node> result = query.execute(firstNode);
// then
Iterator<Node> iterator = result.iterator();
assertEquals(secondNode, iterator.next());
assertFalse(iterator.hasNext());
}
public int getIndexOfVertex(String vertex) {
return graphQuery.getIndexOfVertex(vertex);
}
public Set<String> getAllVertexes() {
return graphQuery.getAllVertexes();
}
public String getSQLSchema() {
return graphQuery.getSQLSchema();
}
public String firsrHead() {
return graphQuery.firstHead();
}
public boolean hasOnlyOneHead() {
return graphQuery.hasOnlyOneHead();
}
