How to remove properties?

[M. jack]

Hello,

I'd like to know if Protege gives the opportunity to find and say if a property is used or not in the ontology. Because, there are Properties that I want to remove, but I don't want consequently to remove restrictions applied on classes using the property. I mean that first I have to change the property with a more global property in all classes restrictions. And then remove the property. But if I have forgotten to change the property name in some classes restrictions, I'd like to know it before the restriction is removed.
Thank you.

[Tania Tudorache]

You could use the listReferences method from the OWLModel interface. A
sample code that returns all references to a property is below:

        RDFProperty p = owlModel.getRDFProperty("hasTopping");

        Iterator it = owlModel.listReferences(p, -1);
        while (it.hasNext()) {
            Tuple ref = (Tuple) it.next();
            System.out.print("The subj and pred of reference: " + ref);
            RDFResource subj = ref.getSubject();
            if (subj instanceof OWLAnonymousClass) {
                System.out.println("\tUsed in: " +
((OWLAnonymousClass)subj).getOwner());
            }
        }

Hope this helps.

Tania



M. jack wrote:

> Hello,
>
> I'd like to know if Protege gives the opportunity to find and say if a
> property is used or not in the ontology. Because, there are Properties that
> I want to remove, but I don't want consequently to remove restrictions
> applied on classes using the property. I mean that first I have to change
> the property with a more global property in all classes restrictions. And
> then remove the property. But if I have forgotten to change the property
> name in some classes restrictions, I'd like to know it before the
> restriction is removed.
> Thank you.
>  

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