Rob,
I agree that it's not safe to use relative URI's,
and I'll probably prefix my URI's with ldp: .
I had already tested your query,
and it returns the original (relative) graph name .
2015-07-28 13:10 GMT+02:00 Rob Vesse <rve...@dotnetrdf.org>:
> Using relative URIs is almost always ill-advised since URI resolution will
> be system and environment dependent
>
> In this case the problem is that the URI gets resolved differently in
> different parts of the system
>
> Try listing the graphs to see the actual graph names that end up in the
> store:
>
> SELECT ?g WHERE { GRAPH ?g { } }
>
> Rob
>
> On 28/07/2015 11:18, "Jean-Marc Vanel" <jeanmarc.va...@gmail.com> wrote:
>
> >Hi
> >
> >I'm not sure if if having a named graph with its name being a relative URI
> >is compliant with the W3C recommendations,
> >But what is sure is that it does not work in TDB.
> >The outcome of this code is that the named graph's content is not
> >retrieved.
> >
> >The use case behind is that I'm developing a simplified LDP server backed
> >by TDB with Scala and Banana-RDF:
> >
> https://github.com/jmvanel/semantic_forms/blob/master/scala/forms/src/main
> >/scala/deductions/runtime/services/LDP.scala
> >
> >import com.hp.hpl.jena.query.*;
> >import com.hp.hpl.jena.rdf.model.*;
> >import com.hp.hpl.jena.tdb.*;
> >import com.hp.hpl.jena.vocabulary.*;
> >
> >public class TestTDBNamedGraphRelativeURI {
> >public static void main(String[] args) {
> > String graphURI = "test1/test1.ttl";
> >
> > Dataset dataset = TDBFactory.createDataset("TDB1");
> >Model model = ModelFactory.createDefaultModel();
> >
> >String personURI = "http://somewhere/JohnSmith";;
> >Resource johnSmith = model.createResource(personURI);
> >String fullName = "John Smith";
> > johnSmith.addProperty(VCARD.FN, fullName);
> >dataset.addNamedModel(graphURI, model);
> >
> >String q = "CONSTRUCT { ?s ?p ?o } "
> >+ "WHERE { GRAPH <" + graphURI + "> {?s ?p ?o } }";
> > Query query = QueryFactory.create(q) ;
> >QueryExecution qexec = QueryExecutionFactory.create(query, dataset) ;
> >Model resultModel = qexec.execConstruct() ;
> >qexec.close() ;
> >System.out.println( resultModel );
> >}
> >}
> >
> >
> >--
> >Jean-Marc Vanel
> >Déductions SARL - Consulting, services, training,
> >Rule-based programming, Semantic Web
> >http://deductions-software.com/
> >+33 (0)6 89 16 29 52
> >Twitter: @jmvanel , @jmvanel_fr ; chat: irc://irc.freenode.net#eulergui
>
>
>
>
>
--
Jean-Marc Vanel
Déductions SARL - Consulting, services, training,
Rule-based programming, Semantic Web
http://deductions-software.com/
+33 (0)6 89 16 29 52
Twitter: @jmvanel , @jmvanel_fr ; chat: irc://irc.freenode.net#eulergui
