Hi, As my previous mail is still waiting approval, I'm resending it with only virtuoso mailing list as a recepient.
Thank you. Regards, Jonathan Dray 2009/10/27 Jonathan Dray <[email protected]> > Hi, > > I've followed the examples in chapter 16 of the virtuoso online > documentation : > http://docs.openlinksw.com/virtuoso/rdfnativestorageproviders.html > > As I understand it, if I use the virtuoso jena provider, I can insert or > remove triples > from a named graph very easily: > > Node foo1 = Node.createURI("http://example.org/#foo1";); > Node bar1 = Node.createURI("http://example.org/#bar1";); > Node bar2 = Node.createURI("http://example.org/#bar2";); > Node baz1 = Node.createURI("http://example.org/#baz1";); > > VirtGraph graph = new VirtGraph ("Example5", url, "dba", "dba"); > graph.clear (); > graph.add(new Triple(foo1, bar1, baz1)); > graph.add(new Triple(foo1, bar2, baz1)); > > > All the operations are transactional and I can rollback at any time: > > graph.getTransactionHandler().begin(); > graph.add(new Triple(foo1, bar1, baz1)); > graph.add(new Triple(foo1, bar2, baz1)); > graph.getTransactionHandler().abort(); > > > Now, I would like to make multiple insertions under different named graphs > within the same transactional scope. > That means that if an error occurs during one of the insert queries > execution, all the operations should be rolled back. > Is it possible with multiple named graphs and the virtuoso jena provider? > If it is the case could you please provide some examples? > > Thank you. > Regards, > > Jonathan Dray >
