[Pellet-users] Strange Pellet behaviour with getIndividuals

[Robert Davey]

Hi all,

I really don't know if this is just me, but I'm having trouble getting
some individuals out of the Pizza ontology [1].

I'm adding an individual for each of the NamedPizzas in a simple loop...

<snip>
OWLClass pizzaClass = factory.getOWLClass(URI.create("http://www.co-ode.org/ontologies/pizza/pizza.owl#NamedPizza"));
int count = 0;
for (OWLSubClassAxiom sca : ontology.getSubClassAxiomsForRHS(pizzaClass))
{
    count++;
    OWLIndividual individual = dataFactory.getOWLIndividual(ontology.getURI().toString()+count));
    owlOntologyManager.applyChange(new AddAxiom(ontology, dataFactory.getOWLClassAssertionAxiom(individual, (OWLClass)sca.getSubClass())));
}
</snip>

I load the ontology into Pellet prior to adding the individuals, but I
understand that shouldn't make any difference with the way the
OWLOntologyManager stuff should work.  I then try and get all the
individuals using:

reasoner.getIndividuals();

However, it only outputs the 5 Country individuals that are already
asserted in the Pizza ontology.  There should be 23 more individuals,
one for each NamedPizza subclass.

If I use:

ontology.getReferencedIndividuals()

I can see all the individuals correctly.

Bear in mind that I have a bit of an old bunch of Pellet jars built from
SVN, and I can't get to the new SVN versions.

Am I being daft?

Cheers

Rob

[1] http://www.co-ode.org/ontologies/pizza/2007/02/12/pizza.owl

-- 
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Dr. Rob Davey
NCYC / Institute of Food Research
Computational Biology / John Innes Centre
Norwich Research Park
Norwich, Norfolk, NR4 7HU

http://www.comparagrid.org/
http://cbr.jic.ac.uk/dicks/
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