Jos, this reminds me of a similar issue I had: https://www.mail-archive.com/[email protected]/msg06279.html
Ideally you should have explicit rdfs:isDefinedBy statements for each term, linking them to their defining ontology. On Tue, Feb 27, 2018 at 7:59 PM, Jos Lehmann < [email protected]> wrote: > Hi Lorenz > > If you could be more specific it would help. > > The restrictions I am working with don't seem to have a URI, so I can't > tell if, in the input ontologies, they belong to the imported ontology or > to the importing ontology. I.e.: > > WHEN DOING: > > ExtendedIterator properties = thisClass.listProperties(); > while (properties.hasNext()) { > Statement thisProperty = > (Statement) properties.next(); > if (!(((Character.isDigit( > thisProperty.getObject().toString().charAt(0)))) || > thisProperty.getObject().toString().startsWith("-"))) { > > newClass.addProperty(thisProperty.getPredicate(), > thisProperty.getObject()); > } > else > {System.out.println("Anonymous > class: " + thisProperty.getObject().toString()); > System.out.println("Anonymous > class' URI: " + ((Resource) thisProperty.getObject()).getURI()); > > > > I GET, FOR INSTANCE: > > Anonymous class: 1a26f878:161d895229e:-7e84 > Anonymous class' URI: null > > > How else can I programmatically determine whether a restriction comes > from the imported or from the importing ontology > Cheers, Jos > > > > -----Ursprüngliche Nachricht----- > Von: Lorenz Buehmann [mailto:[email protected]] > Gesendet: Dienstag, 27. Februar 2018 12:29 > An: [email protected] > Betreff: Re: AW: URI of anonymous classes > > You can get access to imported models via > > OntModel::getImportedModel(String uri) > > or > > OntModel::listSubModels(boolean withImports) > > > Javadoc[1] is always your friend. > > > [1] > https://jena.apache.org/documentation/javadoc/jena/ > org/apache/jena/ontology/OntModel.html > > > On 27.02.2018 11:48, Jos Lehmann wrote: > > As an integration to my question (see Ursprüngliche Nachricht) please > see further down the ouput of re-writing the importing ontology*. > > The same intersection is repeated. Yet, Protege is able to tell that one > of the two intesections comes from the imported ontology the other from the > importing ontology. How? How to tell the the same thing in jena. > > > > Jos > > > > -----Ursprüngliche Nachricht----- > > Von: Jos Lehmann > > Gesendet: Dienstag, 27. Februar 2018 11:09 > > An: [email protected] > > Betreff: URI of anonymous classes > > > > Hi there > > > > I am rewriting an ontology using jena. I rewrite each import. When > rewriting an importing ontology, anonymous classes (e.g. restrictions or > disjointness axioms) of the imported ontology appear twice in the importing > ontology, because to re-write the importing ontology I am working with > OntModelSpec.OWL_DL_MEM, to make sure rewrite instances asserted in the > importing ontology of classes declared in the imported ontology. > > > > Question: is there a way of telling in jena where (at which URI) was a > restriction or an axiom asserted? > > > > Note: Protege has a tooltip saying "Asserted in: URI" of such > classes. But the rdf/xml file does not seem to have such a property. > > > > Subquestion: Does protege compute this property by looking at all > URI of all statements oft he anonymous classes? > > > > > > Hope I am making sense. Jos > > > > > > > > > > * OUTPUT OF RE-WRITING IMPORTING ONTOLOGY > > > > <owl:Class rdf:about="http://purl.oclc.org/NET/ssnx/qu/qu#Dimension";> > > <rdfs:subClassOf> > > <owl:Class> > > <owl:intersectionOf rdf:parseType="Collection"> > > <owl:Restriction> > > <owl:allValuesFrom> > > <owl:Class rdf:about="http://purl.oclc.org/NET/ssnx/qu/qu# > DimensionFactor"/> > > </owl:allValuesFrom> > > <owl:onProperty> > > <owl:AsymmetricProperty rdf:about="http://purl.oclc. > org/NET/ssnx/qu/qu#dimensionFactor"> > > <rdfs:range> > > <owl:Class rdf:about="http://purl.oclc. > org/NET/ssnx/qu/qu#DimensionFactor"/> > > </rdfs:range> > > <dc:source>skos:exactMatch 'factor' [SysML 1.2-QUDV] > http://www.omgwiki.org/OMGSysML/doku.php?id=sysml-qudv:quantities_units_ > dimensions_values_qudv</dc:source> > > <rdfs:comment>Rational number that specifies the factor > in the dimension conversion relationship.</rdfs:comment> > > <rdfs:isDefinedBy>http://purl.oclc.org/NET/ssnx/qu > </rdfs:isDefinedBy> > > <rdfs:label>dimension factor</rdfs:label> > > <rdfs:seeAlso>http://www.omgsysml.org/qudv#Dimension</ > rdfs:seeAlso> > > <rdf:type rdf:resource="http://www.w3. > org/2002/07/owl#ObjectProperty"/> > > </owl:AsymmetricProperty> > > </owl:onProperty> > > </owl:Restriction> > > <owl:Restriction> > > <owl:onDataRange rdf:resource="http://www.w3. > org/2001/XMLSchema#string"/> > > <owl:cardinality rdf:datatype="http://www.w3. > org/2001/XMLSchema#int" > > >1</owl:cardinality> > > <owl:onProperty> > > <owl:DatatypeProperty rdf:about="http://purl.oclc. > org/NET/ssnx/qu/qu#symbolicExpression"/> > > </owl:onProperty> > > </owl:Restriction> > > <owl:Restriction> > > <owl:onDataRange rdf:resource="http://www.w3. > org/2001/XMLSchema#string"/> > > <owl:cardinality rdf:datatype="http://www.w3. > org/2001/XMLSchema#int" > > >1</owl:cardinality> > > <owl:onProperty> > > <owl:DatatypeProperty rdf:about="http://purl.oclc. > org/NET/ssnx/qu/qu#symbolicExpression"/> > > </owl:onProperty> > > </owl:Restriction> > > </owl:intersectionOf> > > </owl:Class> > > </rdfs:subClassOf> > > <rdfs:subClassOf> > > <owl:Class> > > <owl:intersectionOf rdf:parseType="Collection"> > > <owl:Restriction> > > <owl:allValuesFrom> > > <owl:Class rdf:about="http://purl.oclc.org/NET/ssnx/qu/qu# > DimensionFactor"/> > > </owl:allValuesFrom> > > <owl:onProperty rdf:resource="http://purl. > oclc.org/NET/ssnx/qu/qu#dimensionFactor"/> > > </owl:Restriction> > > <owl:Restriction> > > <owl:onDataRange rdf:resource="http://www.w3. > org/2001/XMLSchema#string"/> > > <owl:cardinality rdf:datatype="http://www.w3. > org/2001/XMLSchema#int" > > >1</owl:cardinality> > > <owl:onProperty> > > <owl:DatatypeProperty rdf:about="http://purl.oclc. > org/NET/ssnx/qu/qu#symbolicExpression"/> > > </owl:onProperty> > > </owl:Restriction> > > <owl:Restriction> > > <owl:onDataRange rdf:resource="http://www.w3. > org/2001/XMLSchema#string"/> > > <owl:cardinality rdf:datatype="http://www.w3. > org/2001/XMLSchema#int" > > >1</owl:cardinality> > > <owl:onProperty> > > <owl:DatatypeProperty rdf:about="http://purl.oclc. > org/NET/ssnx/qu/qu#symbolicExpression"/> > > </owl:onProperty> > > </owl:Restriction> > > </owl:intersectionOf> > > </owl:Class> > > > >
