The latest snapshots of things can be found at http://m2.neo4j.org/ and this component (jar-file) can be found in http://m2.neo4j.org/org/neo4j/neo4j-lucene-index/0.1-SNAPSHOT/
2010/7/30, Arijit Mukherjee <ariji...@gmail.com>: > Thanx Mattias. Can I download a tar.gz or zip file from somewhere? I'm > not using Maven in my projects yet...I mean I'm not very comfortable > with it. > > Arijit > > On 30 July 2010 17:33, Mattias Persson <matt...@neotechnology.com> wrote: >> Looping through relatiomships manually is the way to go. However >> there's a new component in >> https://svn.neo4j.org/laboratory/components/lucene-index/ which can >> index relationships and do fast lookups on whether or not a >> relationship (with a certain attribute even) exists between two nodes. >> >> You'll need to go with the latest kernel then as well (as seen in >> https://svn.neo4j.org/laboratory/components/lucene-index/pom.xml). >> >> 2010/7/30, Arijit Mukherjee <ariji...@gmail.com>: >>> Hi All >>> >>> I have a requirement where I must check if there is an already >>> existing relationship between two nodes (say N1 and N2). Right now, >>> I'm doing it as follows: >>> >>> boolean found = false; >>> final Iterable<Relationship> currentRels = >>> N1.getRelationships(RelTypes.KNOWS, Direction.OUTGOING); >>> for (Relationship rel : currentRels) { >>> found = rel.getEndNode().equals(N2); >>> if (found) { >>> do something - like add some property to the existing >>> relationship; >>> break; >>> } >>> } >>> if (!found) { >>> create new relationship between N1 and N2; >>> } >>> >>> This means, for a high volume of data, all the relations going out of >>> N1 will be retrieved and checked - and this seems costly. I'm using >>> the 1.0 API, and wasn't able to find anything that would directly >>> check whether N1 has an outgoing relationship with N2 - like >>> N1.hasRelationship(N2, Direction.OUTGOING) - or something similar. I >>> think there was a similar mail sometime ago. Has there been any >>> updates lately which allows such checks? Or, is there any other direct >>> way to do this with the 1.0 API? >>> >>> Regards >>> Arijit >>> >>> -- >>> "And when the night is cloudy, >>> There is still a light that shines on me, >>> Shine on until tomorrow, let it be." >>> _______________________________________________ >>> 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 >> > > > > -- > "And when the night is cloudy, > There is still a light that shines on me, > Shine on until tomorrow, let it be." > _______________________________________________ > 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
