Re: [OWLAPI-developer] how to check if an entity "exists" in an imported ontology?

[Matthew H. <mat...@cs...>]

Hi Christian,

You code basically checks to see if an entity is referenced in an  
imported ontology, which is what I think you want to do.

Cheers,

Matthew


> I need some help. I want to know, how i can check, if an entity is
> imported or not. For example, if i have an ontology o1, which  
> imports an
> ontology o2, i would like to know if a given OWLEntity belongs to o2  
> or
> not. Is there an easy way to get this information?
>
> I need to do this, because i create a set of special objects for all
> named entities of an ontology and all named entities of all imported
> ontologies. Now i need to know for one of the objects if it belongs to
> an imported ontology or not.
>
> for now i use the following code, is it right? I am iterating through
> all imported ontologies and ask for every ontology, if the entity is
> referenced in the given ontology. If true, i break and return true.
>
> /public boolean checkIfEntityExistsInImportedOntology(
>            OWLEntity entity, OWLOntology ontology, OWLOntologyManager
> manager) {
>
>            for (OWLOntology ontology1 :  
> manager.getImports(ontology)) {
>
>                if (ontology1.containsEntityReference(entity)) {
>                    return true;
>                }
>            }
>
>        return false;
>
>    }
>
> /Many thanks
>
> Christian
>
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