2011/4/7 Stephan Hagemann <stephan.hagem...@googlemail.com>: > Hi guys, > > Dario and I are working together on this, so let me clarify, what we want to > achieve. An example query in a friend network would be: > > Retrieve a set of people P that are the direct friends of person A. P should > include only those friends that are also on a path between A and another > user B. > > We know how to find paths, but we fail at returning nodes - let alone sets > of nodes. > > The old ReturnableEvaluator seemed to achieve just that: "A client hook for > evaluating whether a specific node should be returned from a traverser.", > but that is deprecated in the current milestone release. We're unable to > find the equivalent functionality with the new Traversal framework.
ReturnableEvaluator is like controlling the INCLUDE/EXCLUDE part of an evaluation StopEvaluator is like controlling the CONTINUE/PRUNE part of an evaluation The @Deprecated TraversalDescription#prune and #filter are also a direct mapping of StopEvaluator and ReturnableEvaluator respectively. Evaluator replaces those and combines them into one concept where you can express the same semantics. > > Thanks > Stephan > > > > On Thu, Apr 7, 2011 at 09:35, Mattias Persson > <matt...@neotechnology.com>wrote: > >> Sory, I meant >> >> INCLUDE_AND_PRUNE >> the path will be included in the result set, but the traversal >> won't go further down that path, but will continue down other paths >> that haven't been pruned >> >> >> >> -- >> Mattias Persson, [matt...@neotechnology.com] >> Hacker, Neo Technology >> www.neotechnology.com >> _______________________________________________ >> Neo4j mailing list >> User@lists.neo4j.org >> https://lists.neo4j.org/mailman/listinfo/user >> > _______________________________________________ > Neo4j mailing list > User@lists.neo4j.org > https://lists.neo4j.org/mailman/listinfo/user > -- Mattias Persson, [matt...@neotechnology.com] Hacker, Neo Technology www.neotechnology.com _______________________________________________ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
