[Neo4j] How to check if a relation already exists in neo4j graph

Hi all, I am using the python version of neo4j. if i have n1, n2 as two nodes and KNOWS a relation between n1 and n2 in a graph. n2.KNOWS(n1): How to check if there is a relation KNOWS between n1 and n2?n2.MAILED(n1, on=123456789) and n2.MAILED(n1, on=987654321): How to check that MAILED

[Neo4j] Aggregation for neo4j

Hi there! I thought that aggregation would be nice to have in neo4j, so that not everyone has to do it manually... So I coded up what that could look like. If this is something that interests you, please, take a look at svn.neo4j.org/laboratory/components/aggregation/trunk I'm specially

[Neo4j] traversing-functionality

Hi, For the project I'm working on, I need a traversing as follows: the relationships, which are put in for the traversing should not be attended at the same depth. That means: At first I want to get all nodes by traversing relation_1 and then on this sample space I want to get all nodes by

Re: [Neo4j] traversing-functionality

Have you looked at PatternMatch functionality? Take a look at http://components.neo4j.org/neo4j-graph-matching/ IMO, you can define a pattern for relation_1 and from what you get as pattern nodes in relation_1, define relation_2 for them. Only thing you will need to know is where to look for

Re: [Neo4j] traversing-functionality

2010/9/28 Joshi Hemant - hjoshi hemant.jo...@acxiom.com On second thought, you could use the new traversal framework as well. I haven't used all the features but it should be possible to do something like: TraversalDescription td = Traversal.description().breadthFirst().relationships(

Re: [Neo4j] How do I sort Lucene results by field value, and numerical range queries ?

Thanks a lot ! On Tue, Sep 28, 2010 at 11:22 PM, Mattias Persson matt...@neotechnology.com wrote: I think there's a working version of it now... look at the tests for more information: