Hello, Neo is very cool. Thanks! I'm building my dissertation project in Clojure on top of neo4j, and compared to my previous in memory graphs, this is just going to be great. I'm developing a platform for building distributed systems and peer-to-peer overlay networks where you treat the network structure and the relevant application data as a large graph that can be traversed and operated on using a library of graph operators and a distributed query processor. Anyway, I don't want to waste people's time for now, so I've got a few quick questions.
Is there a way to get an iterator over all nodes? Also for all relations? It seems that disconnected nodes can be easily lost right now, among other reasons to want this kind of feature. I'm not completely familiar with the source yet, but I was thinking the IdGenerator could have a function that returns an iterator over the currently used IDs, which could then be used by the NodeStore to lookup only in-use records from the table. If that works, I guess it could probably be used for Relations and Properties as well. Also, it seems that the IdGenerator could possibly be made faster and more space efficient by using a BitSet for the defragedIdList and releasedIdList... (http://java.sun.com/j2se/1.4.2/docs/api/java/util/BitSet.html) Thoughts? Am I maybe missing a way to do this already? Would this be something people want if I do it? Second, is their a plan to integrate some of this indexing functionality I see in the svn tree, like the B-Tree and/or Lucene stuff? It seems like having support for semantic layers on top of the storage layer would help in many scenarios. For example, I need to have globally unique UUIDs for all nodes and edges that will never repeat... For now I'll try out the b-trees... Thanks again for a very cool DB. -Jeff P.S. I'm just getting things ported over from previous simulations and experiments in Ruby and Common Lisp, but here is the git repository for my Clojure project: http://github.com/rosejn/clj-libs _______________________________________________ Neo mailing list User@lists.neo4j.org https://lists.neo4j.org/mailman/listinfo/user
