Hi, Amir. That is because you are calling "getEndNode()" when printing the output, which is a direction-specific method. You should be calling "getOtherNode()".
Regards, Rick -----Original Message----- From: user-boun...@lists.neo4j.org [mailto:user-boun...@lists.neo4j.org] On Behalf Of Amir Hossein Jadidinejad Sent: Thursday, March 04, 2010 5:08 PM To: neo4j Subject: [Neo] Undirected relationships Hi, I'm going to setup a Nearest Neighbour Graph. Its relations are not directed. How to define undirected relationships in Neo4j? By the way, I'm confused with relations! check the following codes to create a simple graph: GraphDatabaseService graphDb = new EmbeddedGraphDatabase("var"); IndexService index = new LuceneIndexService(graphDb); Transaction tx = graphDb.beginTx(); try { Node andy = graphDb.createNode(); Node larry = graphDb.createNode(); andy.setProperty("name", "Andy Wachowski"); index.index(andy, "name", andy.getProperty("name")); larry.setProperty("name", "Larry Wachowski"); index.index(larry, "name", larry.getProperty("name")); andy.createRelationshipTo(larry, MyRelationshipTypes.KNOWS); tx.success(); } finally { tx.finish(); index.shutdown(); graphDb.shutdown(); } This is a simple relations from "andy" to "larry". When I print the neighbours of "larry" by the following codes: Node a = index.getSingleNode("name", "Larry Wachowski"); System.out.println("Relations:"); for(Relationship r: a.getRelationships()) System.out.println(r.getEndNode().getProperty("name")); The output is: Relations: Larry Wachowski It means that "larry" is related to himself! why? Kind regards, Amir _______________________________________________ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user _______________________________________________ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
