Hi Rodolfo,
could it be that ?value refers to a plain literal? I've realized that
arithmetic operations don't work if the literals are not explicitly
typed e.g. as xsd:integer or xsd:double, and maybe this holds for <
and > comparisons as well...
Cheers,
Dennis
On 7 Okt., 03:37, Holger Knublauch <hol...@topquadrant.com> wrote:
> Hi Rudolfo,
>
> I am not sure where the problem is in your example. I think I need more
> information - feel free to send me your specific example (off-list). I notice
> that you are creating the CONSTRUCT query but it is unclear whether this
> constraint is also attached to the model somehow.
>
> Holger
>
> On Oct 7, 2010, at 5:00 AM, Rodolfo Rieckhof wrote:
>
> > Hello Holger,
> > thanks for your quick response. I have downloaded the new API and it works
> > just fine. But i have another question.
> > How can i insert a SPIN constraint dynamically in my ontology ? I have
> > tried the following:
> > I create a constraint, just like in the examples with:
>
> > ...
> > String query = prefixes +
> > "CONSTRUCT { _:b0 bad:deviceIngressProtection ?value;" +
> > " rdfs:label 'the value should be between 20 an 30'} " +
> > "WHERE { ?dev rdf:type bad:Device ; bad:deviceIngressProtection ?value ." +
> > " FILTER ( ?value < 20 || ?value > 30) " +
> > "}";
>
> > Query arqQuery = ARQFactory.get().createQuery(model, query);
> > ARQ2SPIN arq2SPIN = new ARQ2SPIN(model);
> > Construct spinQuery = (Construct) arq2SPIN.createQuery(arqQuery, null);
>
> > //then i load my Onotology
>
> > File root = new File("ontologies");
> > String dataURL = new File(root.getAbsolutePath() +
> > "/Thermokon_Easysens_Funkschalter_BJ_V1.owl").toURI().toString();
> > Reasoner reasoner = PelletReasonerFactory.theInstance().create();
>
> > // create an empty model
> > OntModel ontModel = ModelFactory.createOntologyModel(
> > PelletReasonerFactory.THE_SPEC );
> > ontModel.read( dataURL );
>
> > //add the model with the Constraint
> > ontModel.addl(model);
> > SPINModuleRegistry.get().registerAll(ontModel);
>
> > // let SPIN do its work
> > List<ConstraintViolation> cvs = SPINConstraints.check(ontModel, null);
> > System.out.println("Constraint violations:" + cvs.size());
> > for(ConstraintViolation cv : cvs) {
> > System.out.println(" - at " + SPINLabels.get().getLabel(cv.getRoot()) + ":
> > " + cv.getRoot());
> > }
>
> > the Problem is that i don´t get any constrains violation (cvs = 0).
> > Although when i run the query with ARQ I get 1. Could you tell me please
> > wich is the wright way to do this ? . Is it a problem, that the is Ontology
> > in rdf ?
>
> > Regards,
> > Rodolfo
>
> > 2010/10/6 Holger Knublauch <hol...@topquadrant.com>:
> > > Hi Rodolfo,
>
> > > thanks a lot for this bug report. It was indeed a (simple) recursive
> > > loop. Since this was a small but rather critical bug, I have just updated
> > > the SPIN API that is on the web with a fix. The file has still the same
> > > version number etc, but the infinite loop should be gone now. I plan to
> > > do a proper release with a couple of new features in a few weeks after it
> > > went through QA.
>
> > > Thanks again
> > > Holger
>
> > > On Oct 6, 2010, at 4:28 AM, rodo2...@googlemail.com wrote:
>
> > >> Hello everyone,
> > >> I just downloaded the implementation of the SPIN API 1.1.2 and when
> > >> i run the example KennedysInferencingAndConstraintsExample i get an
> > >> StackOverflowError. I haven't changed anything in the source and i
> > >> think the problem is in this piece of code:
>
> > >> ...
> > >> // Run constraints on a single instance only
> > >> Resource person = cvs.get(0).getRoot();
> > >> List<ConstraintViolation> localCVS =
> > >> SPINConstraints.check(person,
> > >> null);
> > >> System.out.println("Constraint violations for " +
> > >> SPINLabels.get().getLabel(person) + ": " + localCVS.size());
>
> > >> i am using jena 2.6.3 and ARQ 2.8.5. I would be very thankful for any
> > >> help.
>
> > >> Regards
> > >> Rodolfo
>
> > >> Console output:
>
> > >> Inferred triples: 136
> > >> Constraint violations:
> > >> - at spin:AskTemplates:
> > >> - at spin:UpdateTemplates:
> > >> - at spin:SelectTemplates:
> > >> - at spin:ConstructTemplates:
> > >> - at kennedys:JosephKennedy: age must be within a realistic range
> > >> - at kennedys:StephenSmith: Same-sex marriage not permitted (in this
> > >> model)
> > >> - at kennedys:JeanKennedy: Same-sex marriage not permitted (in this
> > >> model)
> > >> Exception in thread "main" java.lang.StackOverflowError
> > >> at
> > >> org.topbraid.spin.constraints.SPINConstraints.check(SPINConstraints.java:
> > >> 259)
> > >> at
> > >> org.topbraid.spin.constraints.SPINConstraints.check(SPINConstraints.java:
> > >> 259)
> > >> ....
>
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