Thanks For now I'm just prototyping and the case might be that there are several millions of relationshids that has to be changed in one transaction. However, it is a very uncommon operation and it might also be that the graph design should be changed to limit the number of relationships?
//Carl On Thu, Aug 11, 2011 at 6:04 PM, Peter Neubauer [via Neo4j Community Discussions] <[email protected]> wrote: > Carl, > this is what you can do. Relationships are immutable, that is, once > created you have to delete them and create new ones in order to change > endpoints. Not much choice there. What is the size of your > reassignments and the number of relationships in one transaction? > > Cheers, > > /peter neubauer > > GTalk: neubauer.peter > Skype peter.neubauer > Phone +46 704 106975 > LinkedIn http://www.linkedin.com/in/neubauer > Twitter http://twitter.com/peterneubauer > > <a href="http://www.neo4j.org ">http://www.neo4j.org - Your > high performance graph database. > http://startupbootcamp.org/ - Öresund - Innovation happens HERE. > http://www.thoughtmade.com - Scandinavia's coolest Bring-a-Thing party. > > > > On Thu, Aug 11, 2011 at 4:47 PM, cnordenfelt <[hidden > email]<http://user/SendEmail.jtp?type=node&node=3246384&i=0>> > wrote: > > > Hi > > I have started to digg into neo4j and have not found a nice way to change > > > many relationships from one node to another. For example, I have n1 with > a > > relationship to m1, m2 and m3. Now I would like to change the > relationship > > to point from n2 to m1, m2 and m3 instead. I could of course fetch all > > relationships from n1 and change each relationship individually to n2 but > > > this will make me iterate over all relationships, which could be quite > many. > > Is there any way to replace a node with another or to "reassign" multiple > > > relationships with one operation? > > > > I'm currently using the Java API. > > > > Thanks > > Carl > > > > -- > > View this message in context: > http://neo4j-community-discussions.438527.n3.nabble.com/Change-multiple-relations-in-one-operation-tp3246141p3246141.html > > Sent from the Neo4j Community Discussions mailing list archive at > Nabble.com. > > _______________________________________________ > > Neo4j mailing list > > [hidden email] <http://user/SendEmail.jtp?type=node&node=3246384&i=1> > > https://lists.neo4j.org/mailman/listinfo/user > > > _______________________________________________ > Neo4j mailing list > [hidden email] <http://user/SendEmail.jtp?type=node&node=3246384&i=2> > https://lists.neo4j.org/mailman/listinfo/user > > > ------------------------------ > If you reply to this email, your message will be added to the discussion > below: > > http://neo4j-community-discussions.438527.n3.nabble.com/Change-multiple-relations-in-one-operation-tp3246141p3246384.html > To unsubscribe from Change multiple relations in one operation, click > here<http://neo4j-community-discussions.438527.n3.nabble.com/template/NamlServlet.jtp?macro=unsubscribe_by_code&node=3246141&code=Y2FybC5ub3JkZW5mZWx0QGdtYWlsLmNvbXwzMjQ2MTQxfDQwNDcxMjI=>. > > -- View this message in context: http://neo4j-community-discussions.438527.n3.nabble.com/Change-multiple-relations-in-one-operation-tp3246141p3246722.html Sent from the Neo4j Community Discussions mailing list archive at Nabble.com. _______________________________________________ Neo4j mailing list [email protected] https://lists.neo4j.org/mailman/listinfo/user
