Re: [Neo] Typing of nodes (WAS: Java outof 64 GB ram)

2010-03-01 Thread Mattias Persson
2010/2/26 rick.bullo...@burningskysoftware.com:   Hi, Mattias.   We had a similar requirement (to track the type of a node), and while   we were able to achieve this with relationships in very constrained   scenarios, we could not do so in a more general sense.  Let me explain   and maybe

Re: [Neo] BatchInserter.java fails

2010-03-01 Thread Johan Svensson
Hi, Can you reproduce this in a test case and send me the code? If not I would need the active logical log that rotation fails at (name of file is either called nioneo_logical.log.1 or nioneo_logical.log.2). Regards, -Johan On Fri, Feb 26, 2010 at 5:27 PM, Lyudmila L. Balakireva lu...@lanl.gov

Re: [Neo] Extracting a subgraph

2010-03-01 Thread Anders Nawroth
Hi, Is that right? Will I have to manually check for these other relationships or there is another solution? You are right. I added some information regarding this on the wiki: http://wiki.neo4j.org/content/Traversal#Extracting_a_subgraph /anders

Re: [Neo] Typing of nodes (WAS: Java outof 64 GB ram)

2010-03-01 Thread Rick Bullotta
Actually, we do have the case (due to an indexing/tagging model that can span many diverse types) where we do not have knowledge within the domain model of the specific type of entity represented by a node at one end of a relationship, thus the reason for marking them with a type property

Re: [Neo] Neo4j in Lift

2010-03-01 Thread Georg M. Sorst
Hi Craig, while the Neo4j Scala project is not specifically tailored to Lift you can use it just as easily in a Lift project as you can use regular Neo4j in a Java EE project. Just instantiate the GraphDatabaseService in the bootstrap code, encapsule your Domain logic etc. Unfortunately my

Re: [Neo] BatchInserter.java fails

2010-03-01 Thread Lyudmila L. Balakireva
I attached log and java I am using, regards Hi, Can you reproduce this in a test case and send me the code? If not I would need the active logical log that rotation fails at (name of file is either called nioneo_logical.log.1 or nioneo_logical.log.2). Regards, -Johan On Fri, Feb 26,

[Neo] Default Node

2010-03-01 Thread Pierre Ducrot
Hi, It seems as if EmbeddedGraphDatabase(var/db) by default create a node with ID = 0 if the database doesn't exist. Is it possible to create an empty database so that node ID = 0 would the first node created using g.createNode() Kind regards, Pierre

Re: [Neo] Default Node

2010-03-01 Thread Pierre Ducrot
Hi Peter, Actually not, I'm using eclipse directly, creating the database from documents. Pierre Le 1 mars 2010 à 18:25, Peter Neubauer a écrit : Pierre, are you using Neo4j via Gremlin? In that case, you probably could simply get the auto-created reference node by \,,,/

Re: [Neo] .Net binding

2010-03-01 Thread Chibuike Muoh
Thanks, I would probably also go with option 3, though it might take a couple of weeks to get oriented. Hopefully, you guys dont mind if I bug you the usergroup from time to time with questions -- Message: 3 Date: Mon, 1 Mar 2010 15:00:28 +0100 From: Tobias

[Neo] Graph Algo Problems

2010-03-01 Thread Todd Stavish
Hi Everyone, I am running into some null pointer exceptions when I try to feed things into some of the graph algos. The test cases can be found in the link below. It is all maven based and the pre-built graph is included. Queries19 (Floyd-Warshall), 20 (Eigenvector Centrality with the Arnoldi

Re: [Neo] Default Node

2010-03-01 Thread Tobias Ivarsson
No, nodes that have been created keep their ids for ever. /Tobias On Mon, Mar 1, 2010 at 10:26 PM, Pierre Ducrot pierre.duc...@wanadoo.frwrote: Thanks for you help. Since the original reference node (0) is the first node, would deleting it affect node indices, hence 1 would become 0?

Re: [Neo] Neo4j in Lift

2010-03-01 Thread Christophe Dehlinger
Lift offers several persistence mechanisms out of the box (Mapper, Record, JPA and CouchDB currently), but these are just options. You are free to handle your model in any way you want. There is no single forced mapping API you have to code to. Mapper itself is an ORM, it uses SQL under the hood,