[OWLAPI-developer] How to get object properties from a given class

[Phoenix Ex <pho...@gm...>]

Hi everyone!

I've created with Protege4 an ontology with classes A and B. Also, i have an
object property "hasB" with domain A and range B. Class A has the following
superclass "hasB some B".

Using OWL API that comes with Protege4 (version 2.2.1.1090), i've been
trying to create a java code that gets all object properties of a given
class. In this code, i open the ontology file that Protege4 had created.
Considering the example above, i would like to access the objectProperty
"hasB" from class A.

The code:

OWLOntologyManager manager = OWLManager.createOWLOntologyManager();
URI physicalURI = URI.create("file:/C:/example.owl");
OWLOntology ontology = manager.loadOntologyFromPhysicalURI(physicalURI);

OWLDataFactory factory = manager.getOWLDataFactory();
OWLClass classA = factory.getOWLClass(URI.create(ontology.getURI() + "#A"));
for(OWLDescription owlDescription: classA.getSuperClasses(ontology)){
//How to retrieve from "classA.getSuperClasses(ontology)" the object
property "hasB"???
}

I tried to iterate over "classA.getSuperClasses(ontology)", expecting to
have access to "hasB" object property... but this method returns a set of
OWLDescription. With this interface i can't have access to the property.
Does anyone have overcome this problem?

Thanks!

Vitor