Hi Hugh, I have the following versions: Virtuoso: 06.02.3128 virt_jena: 2.6.2 [Build 1.2] virtjdbc3: 3.x [Build 3.56] Are there any newer version of virt_jena and virtjdbc3?. With the versions I have I am not able to use virtjdbc4.
The Inference Graph example works. Actually I was able to run the code I posted earlier by using other graphs in Virtuoso to get data from. I don't know why the previous graphs caused errors. Could it be because of possible inconsistencies in the ontology definition? What I found out later was that the inclusion of dataGraph in the Inference Model caused the exception to be thrown. Thanks for your answer. Best regards, Babis >________________________________ >From: Hugh Williams <hwilli...@openlinksw.com> >To: Babis Doulaverakis <doula...@yahoo.gr> >Cc: "virtuoso-users@lists.sourceforge.net" ><virtuoso-users@lists.sourceforge.net> >Sent: Thursday, August 18, 2011 3:15 PM >Subject: Re: [Virtuoso-users] Virtuoso-Jena provider problem > > >Hi Babis, > > >We have an Inference Graph example (VirtuosoSPARQLExample13) in the Jena >documentation >at http://virtuoso.openlinksw.com/dataspace/dav/wiki/Main/VirtJenaProvider?#Testing > , does this run for you ? > > >Also please confirm the versions of the components being used with the >following commands: > > >virtuoso-t -? >java -jar virt_jena.jar >java -jar virtjdbc3.jar > > >Best Regards >Hugh Williams >Professional Services >OpenLink Software >Web: http://www.openlinksw.com >Support: http://support.openlinksw.com >Forums: http://boards.openlinksw.com/support >Twitter: http://twitter.com/OpenLink > >On 18 Aug 2011, at 11:22, Babis Doulaverakis wrote: > >Hello, >> >> >>I am trying to use the Virtuoso-Jena provider to make an Inference Graph in >>Jena using Virtuoso as a RDF backend but an exception is thrown. The code I >>use is: >> >> >>VirtGraph schemaGraph = new VirtGraph >>("http://MyGraph/schema#","jdbc:virtuoso://localhost:1111/charset=UTF-8/log_enable=2";, >> "dba", "dba"); >>VirtGraph dataGraph = new VirtGraph >>("http://MyGraph/data#","jdbc:virtuoso://localhost:1111/charset=UTF-8/log_enable=2";, >> "dba", "dba"); >>Model dataModel = new VirtModel(dataGraph); >> >>Model schemaModel = new VirtModel(schemaGraph); >>Reasoner reasoner = ReasonerRegistry.getOWLReasoner(); >>reasoner = reasoner.bindSchema(schemaModel); >>InfModel infmodel = ModelFactory.createInfModel(reasoner, dataModel); >> >> >> >>Iterator<Statement> list = infmodel.listStatements(); >> >> >> >>The exception I get is "Exception in thread "main" >>virtuoso.jdbc3.VirtuosoException: Tag 1 not defined." when the >>listStatements() method is called. Is there a way to fix this problem? >> >> >>Thanks, >>Babis------------------------------------------------------------------------------ >>Get a FREE DOWNLOAD! and learn more about uberSVN rich system, >>user administration capabilities and model configuration. Take >>the hassle out of deploying and managing Subversion and the >>tools developers use with it. >>http://p.sf.net/sfu/wandisco-d2d-2_______________________________________________ >>Virtuoso-users mailing list >>Virtuoso-users@lists.sourceforge.net >>https://lists.sourceforge.net/lists/listinfo/virtuoso-users >> > > >
