thank mattias, and oder question, I have a class attribute is a collection of objects, then neo4j not allow me to take a collection property, as I can store the database in this collection, Thanks and sorry for the trouble... ----- Mensaje original ----- De: "Mattias Persson" <matt...@neotechnology.com> Para: "Neo4j user discussions" <user@lists.neo4j.org> Enviados: Martes, 15 de Febrero 2011 15:51:54 (GMT-0500) Auto-Detected Asunto: Re: [Neo4j] about relationship
Does this help: http://wiki.neo4j.org/content/Index_Framework#Relationship_indexes ? 2011/2/15 Jose Angel Inda Herrera <jai...@estudiantes.uci.cu> > hello Mattias > the RelationshipIndex class which would. I have that to implement this > class. > thank befoorhand > ----- Mensaje original ----- > De: "Mattias Persson" <matt...@neotechnology.com> > Para: "Neo4j user discussions" <user@lists.neo4j.org> > Enviados: Lunes, 14 de Febrero 2011 4:18:33 (GMT-0500) Auto-Detected > Asunto: Re: [Neo4j] about relationship > > You mean in the most efficient way? Currently you'll have to go with a > relationship index if you have many edges and would like to do a fast > lookup > for a relationship between two nodes. You can index relationships just as > you do nodes: > > RelationshipIndex index = graphDb.index().forRelationships( > "my-relationships" ); > index.add( myRelationship, "myKey", "myValue" ); > ... > // Either if you query for a specific property: > index.get( "myKey", "myValue", startNode, endNode ); > // Or if you just query using the nodes > index.get( null, null, startNode, endNode ); > > The other way is to loop relationships from one node and see if the > otherNode of those relationships matches. Might be slower though > > Best, > Mattias > > 2011/2/10 Jose Angel Inda Herrera <jai...@estudiantes.uci.cu> > > > > > hello list, > > How to get an edge in the graph (in this case a relationship) having the > > two nodes of this relationship, > > > > thank beforhand > > _______________________________________________ > > 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 > _______________________________________________ > 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 _______________________________________________ Neo4j mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
