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Assuming there are several class definitions in an ontology:

<owl:Class rdf:about="&ontX;A">
    <rdfs:label>A</rdfs:label>
    <rdfs:subClassOf>
        <owl:Restriction>
            <owl:onProperty rdf:resource="&ontY;hasCapability"/>
            <owl:someValuesFrom rdf:resource="&ontY;CapabilityB"/>
        </owl:Restriction>
    </rdfs:subClassOf>
    <rdfs:subClassOf>
        <owl:Restriction>
            <owl:onProperty rdf:resource="&ontY;hasCapability"/>
            <owl:someValuesFrom rdf:resource="&ontY;CapabilityC"/>
        </owl:Restriction>
    </rdfs:subClassOf>
</owl:Class>

How to retrieve all capabilities for a given class. In the the above example, for the given class A, CapabilityB and CapabilityC should be returned.

&ontY;CapabilityB and &ontY;CapabilityC are classes in another ontology. The ontologies cannot be changed.

OWL API and a reasoner may be used for the query.

Joshua Taylor
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Scholle
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1 Answers1

2

Write an OWLObjectVisitor that collects the fillers for all some values restrictions mentioned in the super classes of the input class, then get all subclasses of each filler, those will be the capability classes compatible with these restrictions.

Ignazio
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    A filler is what appears in a restriction as the class, in this case capabilityB and capabilityC are fillers. – Ignazio Aug 17 '15 at 14:15