This means your query hasn't matched anything.
Show us your data.
On Thu, Aug 24, 2017 at 10:42 PM, javed khan <javedbtk...@gmail.com> wrote:
> In response to my question earlier, I replace this
>
> ResultSet results = (ResultSet) qexec.execConstruct() ;
>
> with
>
> Model results = qexec.execConstruct() ;
> results.write(System.out, "TURTLE");
>
> But how can I get the require result i.e value of ?z and ?y
>
> I expect the following result:
>
> Bob hasUncle Lincoln
>
> But currently, it just display the prefixes.
>
>
>
>
> On Thu, Aug 24, 2017 at 9:20 PM, javed khan <javedbtk...@gmail.com> wrote:
>
> > Hello
> >
> > What is the problem in this query: 'Male' is string literal here. (The
> > query works inside Protege)
> >
> > CONSTRUCT { ?x mo:hasUncle ?y } WHERE { ?x mo:hasParents ?z .?z
> > mo:Gender 'Male' . ?z mo:hasBrother ?y}
> >
> > Query query = QueryFactory.create(str);
> > QueryExecution qexec = QueryExecutionFactory.create(query, model) ;
> > ResultSet results = (ResultSet) qexec.execConstruct() ;
> > while (results.hasNext())
> > {
> > QuerySolution binding = results.nextSolution();
> > Literal lit = binding.get("z").asLiteral();
> >
> >
> >
>
