[Pellet-users] Detaching Pellet model from a base model

[Evren Sirin]

I was not able to reproduce this problem with the given code snippet. 
Are there any additional steps you are doing? Can you provide a complete 
program that demonstrates the problem?

Thanks,
Evren

On 7/16/08 12:16 PM, Todor Dimitrov wrote:
> Hi everybody,
>
> is there a possibility of detaching a Pellet model from its base model.
> What I have tried is to add the base model as a sub-model and later on to
> remove it. The problem is though that whenever I call close() on the
> Pellet model, the base model also gets closed. Here is the example code:
>
> ...
> m_pelletModel = ModelFactory.
> createOntologyModel(PelletReasonerFactory.THE_SPEC);
> m_pelletModel.addSubModel(m_baseModel);
> ...
>
> ...
> m_pelletModel.removeSubModel(m_baseModel, false);
> m_pelletModel.close();
> ...
>
> If I then call for example:
>
> ...
> final OntClass ontClass = m_baseModel.getOntClass(classUri);
> final Individual individual = ontClass
>                                 .createIndividual(instanceUri);
> ...
>
> I get the following exception:
>
> Caused by: com.hp.hpl.jena.shared.ClosedException: already closed
>         at com.hp.hpl.jena.graph.impl.GraphBase.checkOpen(GraphBase.java:62)
>         at com.hp.hpl.jena.graph.impl.GraphBase.find(GraphBase.java:239)
>         at
> org.mindswap.pellet.jena.DisjointMultiUnion.graphBaseFind(DisjointMultiUnion.java:125)
>         at com.hp.hpl.jena.graph.impl.GraphBase.find(GraphBase.java:240)
>         at
> com.hp.hpl.jena.graph.impl.GraphBase.graphBaseFind(GraphBase.java:260)
>         at com.hp.hpl.jena.graph.impl.GraphBase.find(GraphBase.java:257)
>         at org.mindswap.pellet.jena.OWLLoader.hasObject(OWLLoader.java:396)
>         at org.mindswap.pellet.jena.OWLLoader.node2term(OWLLoader.java:657)
>         at
> org.mindswap.pellet.jena.DisjointMultiUnion.addABoxChange(DisjointMultiUnion.java:446)
>         at
> org.mindswap.pellet.jena.DisjointMultiUnion.notifyAddTriple(DisjointMultiUnion.java:172)
>         at
> com.hp.hpl.jena.graph.impl.SimpleEventManager.notifyAddTriple(SimpleEventManager.java:60)
>         at com.hp.hpl.jena.graph.impl.GraphBase.notifyAdd(GraphBase.java:133)
>         at com.hp.hpl.jena.graph.impl.GraphBase.add(GraphBase.java:200)
>         at
> com.hp.hpl.jena.graph.compose.MultiUnion.performAdd(MultiUnion.java:116)
>         at com.hp.hpl.jena.graph.impl.GraphBase.add(GraphBase.java:199)
>         at com.hp.hpl.jena.rdf.model.impl.ModelCom.add(ModelCom.java:939)
>         at
> com.hp.hpl.jena.rdf.model.impl.ResourceImpl.addProperty(ResourceImpl.java:245)
>         at
> com.hp.hpl.jena.ontology.impl.OntModelImpl.getResourceWithType(OntModelImpl.java:2963)
>         at
> com.hp.hpl.jena.ontology.impl.OntModelImpl.createOntResource(OntModelImpl.java:1836)
>         at
> com.hp.hpl.jena.ontology.impl.OntModelImpl.createIndividual(OntModelImpl.java:1137)
>         at
> com.hp.hpl.jena.ontology.impl.OntClassImpl.createIndividual(OntClassImpl.java:679)
>
>
> Any clues on what I might be doing wrong?
>
>
> Thanks in advance,
>
> Todor
>
>
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