Re: newbie question casting java classes/interfaces
Yes, this is a perfectly valid error, it simply means what it says. That it's impossible to cast an instance of EmbeddedGraphDatabase to the NeoService interface. The reason for this is of course that EmbeddedGraphDatabase does not implement the NeoService interface. As you said, you were mixing incompatible versions of the Neo4j packages, the NeoService interface was renamed to GraphDatabaseService before the release of Neo4j version 1.0. Cheers, Tobias On Thu, Jul 29, 2010 at 5:57 AM, Sandeep Puri lexla...@gmail.com wrote: Sorry didn't answer your question.. The error I got was Cannot cast GraphDBService to NeoService On Jul 28, 8:54 pm, Sandeep Puri lexla...@gmail.com wrote: It's not the JPA one. It's the meta-model work-in-progress for the neo4j project. It so happens I was using neo4j-1.1-snapshot with an older meta-model implementation. I pulled the meta-model-0.9 snapshot which seems to work.fine. But the above question is still valid in a generic sense.. On Jul 28, 4:27 am, Chas Emerick cemer...@snowtide.com wrote: What error or other message do you get? Also, which MetaModelImpl is this? I assume it's not the JPA one. - Chas On Jul 27, 2010, at 2:38 PM, Sandeep Puri wrote: The snippet below works fine GraphDatabaseService neo = new EmbeddedGraphDatabase(dbpath); MetaModel model = new MetaModelImpl((NeoService) neo); Where MetaModelImpl expects a NeoService trying to do the same thing in clojure (let [^NeoService neo (EmbeddedGraphDatabase. dbpath) model (MetaModelImpl. neo)] ...) does not.. am I allowed to typecast any class what am I doing wrong? Am a newbie to clojure and am trying to us the neo4j libraries includin gthe MetaModel components of neo4j -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.comclojure%2bunsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.comclojure%2bunsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Neo4j and clojure which project to use
If you don't get any answers here, I would suggest trying the Neo4j mailing list, the sign up page is at https://lists.neo4j.org/mailman/listinfo/user Cheers, Tobias On Mon, Jan 11, 2010 at 5:32 PM, pl6306 phat@gmail.com wrote: Hi All, I am new to Clojure and Neo4j. I see a couple of different wrappers for neo4j http://github.com/ato/clojars-web#readme http://github.com/JulianMorrison/neo4j-clojure/ http://github.com/rosejn/clj-libs http://github.com/mattrepl/clojure-neo4j http://github.com/pelle/clojure-neo4j does anyone have a recommendation on which to go with? Thank you! -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.comclojure%2bunsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: New Year and New Library
Cool stuff Mark! Hope you don't mind me forwarding this to the Neo4j community. Happy new year! /Tobias On Fri, Jan 1, 2010 at 5:16 PM, Mark Baran meba...@gmail.com wrote: Hey Clojurians, To kick off the New Year, I'm releasing my neo4j wrapper. It has both a comprehensive low level api that lets you deal with nodes and relationships and a higher level api that uses nested hashmaps. Check it out at: http://bitbucket.org/mebaran/appledelhi2 I've also uploaded a version to clojars to make it easy to integrate into anybody's project. Tests are forthcoming though running it at the repl, I haven't spotted any problems. Feedback and comments much appreciated, Mark -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.comclojure%2bunsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -- You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
Re: Directed Graphs for Contrib
On Feb 24, 1:33 am, Jeff Rose ros...@gmail.com wrote: That would be great. Especially if the algorithms can operate over some kind of generalized interface, so the algorithms can run over different graph implementations. I'm writing a semi-structured storage library on top of the neo4j graph database, and it would be great if I could analyze properties like connectedness, degree distribution, etc. I'm writing a graph query engine too, so it would also be cool if it could run over the in-memory graphs from your library. Neo4j has a component for doing those kinds of computations: http://components.neo4j.org/graph-algo/ It's still in alpha stage, but the Neo team is working on improving it, and one day make a production ready tool from it. With your input that process would be greatly aided. You don't have to contribute code, comments from users are very valuable as well. /Tobias --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Clojure group. To post to this group, send email to clojure@googlegroups.com To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -~--~~~~--~~--~--~---
