Re: [Neo4j] REST and dijkstra

2011-01-25 Thread Mattias Persson
There are some graph algos exposedhttp://components.neo4j.org/neo4j-server/0.6-SNAPSHOT/rest.html#Finding_paths_between_two_nodes(which I wrote), but the Dijkstra algo isn't available there... Either dig in and extend it with Dijkstra support or write an extension as Jim mentioned. 2011/1/24 Jim

Re: [Neo4j] Shell, LuceneIndex and Matching Questions

2011-01-25 Thread Konstanze . Lorenz
Hi, thank you for making these things clear. I think I can handle these fake iterables. I just wanted to clearify that, because I did not find this in the doc for graphmatching. About the second problem. I see my fault. Everywhere the valuecontext.numeric has to be used. Thank you for that. I

Re: [Neo4j] Multiple running databases

2011-01-25 Thread Andreas Kollegger
Hi Guillem, I believe on both windows and *nix, neo4j install creates a single service. So, just having two neo4j installation directories with different configuration isn't enough if you want them to both run as a service. In *nix land, you could simply copy the /etc/init.d/ script to a new

Re: [Neo4j] Multiple running databases

2011-01-25 Thread Guillem Medina Martínez
Hi Andreas, It was related with the creation of services in Windows, but I've just make it work. In order to create two different services for the neo4j servers the only thing necessary (besides the modifications explained before) it's to change the neo4j-wrapper, in the part related with

[Neo4j] Expanding nodespace in Neo 1.3

2011-01-25 Thread Rick Bullotta
Maybe this is a stupid question (or not), but I'm assuming that the relationship id will also be expanded as well? Supporting a large # of nodes without also supporting a large # of relationships would obviously not make sense, but just wanted to confirm. Thanks, Rick

Re: [Neo4j] default server extensions, where to put them and how to expose them

2011-01-25 Thread Peter Neubauer
Yeah, that would be great. I think the extension you are talking about would be to have a traversal running, so I would make it an implementation of the yet-to-come Script execution extension with a JavaScript or Gremlin Snippet in it. Would be good test for that one. Tobias, you had started on

Re: [Neo4j] Multiple running databases

2011-01-25 Thread Peter Neubauer
Thanks for reporting that back, Guillem! We will put it into the reference docs so others can benefit fro your findings! Cheers, /peter neubauer GTalk:      neubauer.peter Skype       peter.neubauer Phone       +46 704 106975 LinkedIn   http://www.linkedin.com/in/neubauer Twitter     

Re: [Neo4j] Expanding nodespace in Neo 1.3

2011-01-25 Thread Peter Neubauer
Yes, this is in the roadmap for 1.3, and getting working on very soon (TM). The ID space is for both properties, relationships and nodes, so expansion will affect all of them. Cheers, /peter neubauer GTalk:      neubauer.peter Skype       peter.neubauer Phone       +46 704 106975 LinkedIn  

Re: [Neo4j] Expanding nodespace in Neo 1.3

2011-01-25 Thread Andreas Kollegger
That's a good point to clarify: The number of possible nodes, relationships, and properties will each increase with complementary id sizes. Best, Andreas On Jan 25, 2011, at 3:12 PM, Rick Bullotta wrote: Maybe this is a stupid question (or not), but I'm assuming that the relationship id

Re: [Neo4j] Multiple running databases

2011-01-25 Thread Peter Neubauer
Guillem, docs are updated to reflect this, see http://docs.neo4j.org/chunked/snapshot/server-installation.html#_multiple_server_instances_on_one_machine Is that information correct or is there more to it? Cheers, /peter neubauer GTalk:      neubauer.peter Skype       peter.neubauer Phone      

[Neo4j] about error

2011-01-25 Thread Jose Angel Inda Herrera
Hello list, i hope that all are fine, i have this code , public class Particion() { LinkedListClaseEquivalencia elements; Node node; public Particion(Node node) { this.node = node; this.node.setProperty(elements, elements); } ... } and me compiler return, Exception in thread

Re: [Neo4j] about error

2011-01-25 Thread Peter Neubauer
Jose, Arrays of objects are not supported as properties. In that case, you should probably either model these as Nodes and Relationships, or serialize them into a String and that way persist the List. An example of using Spring to model Sets is in

[Neo4j] Traversal Question

2011-01-25 Thread John Howard
Hello, We are trying to use neo4j graph database in one of our applications. I think we hit a roadblock with traversal framework. It could be due to our limited knowledge of neo4j framework. Here is what we are trying to accomplish: We need to get a path(from the graph below) from the nodes A to

Re: [Neo4j] about error

2011-01-25 Thread Mattias Persson
In fact, arrays of primitives+Strings are supported, but not List or Collection or anything like that is. 2011/1/25 Peter Neubauer peter.neuba...@neotechnology.com Jose, Arrays of objects are not supported as properties. In that case, you should probably either model these as Nodes and

Re: [Neo4j] Traversal Question

2011-01-25 Thread Jim Webber
Hi John, The graph algorithms package has a some useful features for path finding (e.g. shortest path). Do any of the approaches in http://components.neo4j.org/graph-algo/ seem useful to you? Or do you think that a custom traverser is necessary instead? Jim

Re: [Neo4j] Neo4j 1.2 server on Linux X86 - 64 bit

2011-01-25 Thread Peter Neubauer
Joshi, I am a bit suspicious of your wrapper.log, STATUS | wrapper | 2011/01/24 11:34:47 | Launching a JVM... INFO | jvm 1| 2011/01/24 11:34:47 | WrapperManager: Initializing... INFO | jvm 1| 2011/01/24 11:34:47 | WrapperManager: INFO | jvm 1| 2011/01/24 11:34:47 |