The problem seems to be that I wasn't following the note:
public void registerAll(Model model)
Registers all functions and templates from a given Model. Note that
the Model should be an OntModel that also imports the system
namespaces spin.owl and sp.owl - otherwise the system may not be able
to transform the SPIN RDF into the correct SPARQL string.
A model that used to be an OntModel I changed to a Model in my move to
create a single graph in SDB, and that is the model I was
registering. Perhaps the parameter should be changed to an OntModel?
Note that the Model (_memModel) that caused the exception was created
from the OntModel that worked as follows:
_memModel.notifyEvent(GraphEvents.startRead);
try {
_memModel.removeAll();
_memModel.add(ontModel);
} finally {
_memModel.notifyEvent(GraphEvents.finishRead);
}
But when I send the _memModel into registerAll I get the exception
while the ontModel works.
Anyway, now on to your other e-mail regarding union graphs :-)
Jeff
On Dec 20, 2009, at 1:32 AM, Holger Knublauch wrote:
> Hi Jeff,
>
> could you send me the spl.spin.owl file from your distribution?
> Also, which Jena version are you using?
>
> Thanks
> Holger
>
>
> On Dec 19, 2009, at 7:06 AM, Jeffrey Schmitz wrote:
>
>> Hello,
>> I'm getting an exception on the call to registerAllSPINModules
>> (stack trace below). Stepping through the code, it's happeining on
>> the following spin:Function defined in the spl ontology
>> (spl.spin.owl):
>>
>> http://spinrdf.org/spl#hasValue
>>
>> I'm not quite sure how to debug this one. I believe I have the
>> latest downloads of the spin libs and models. Any ideas?
>>
>> java.lang.IllegalArgumentException: Function definition does not
>> contain a valid body
>> at
>> org.topbraid.spin.arq.SPINARQFunction.<init>(SPINARQFunction.java:53)
>> at
>> org
>> .topbraid
>> .spin
>> .system
>> .SPINModuleRegistry.registerARQFunction(SPINModuleRegistry.java:183)
>> at
>> org
>> .topbraid
>> .spin.system.SPINModuleRegistry.register(SPINModuleRegistry.java:141)
>> at
>> org
>> .topbraid
>> .spin
>> .system
>> .SPINModuleRegistry.registerFunctions(SPINModuleRegistry.java:211)
>> at
>> org
>> .topbraid
>> .spin.system.SPINModuleRegistry.registerAll(SPINModuleRegistry.java:
>> 171)
>> at
>> com
>> .boeing.sparqlflow.SPINmodel.registerAllSPINModules(SPINmodel.java:
>> 232)
>> at com.boeing.sparqlflow.SIFmodel.initMemModel(SIFmodel.java:2319)
>> at com.boeing.sparqlflow.debug.TestSDBSPIN.main(TestSDBSPIN.java:
>> 120)
>> Caused by: java.lang.NullPointerException
>> at com.hp.hpl.jena.sparql.path.PathWriter.asString(PathWriter.java:
>> 35)
>> at
>> org
>> .topbraid
>> .spin.model.impl.TriplePathImpl.printPath(TriplePathImpl.java:58)
>> at
>> org
>> .topbraid.spin.model.impl.TriplePathImpl.print(TriplePathImpl.java:
>> 47)
>> at
>> org
>> .topbraid
>> .spin.model.impl.ElementListImpl.print(ElementListImpl.java:154)
>> at
>> org
>> .topbraid
>> .spin
>> .model
>> .impl
>> .AbstractSPINResourceImpl
>> .printNestedElementList(AbstractSPINResourceImpl.java:129)
>> at
>> org.topbraid.spin.model.impl.QueryImpl.printWhere(QueryImpl.java:173)
>> at org.topbraid.spin.model.impl.AskImpl.print(AskImpl.java:23)
>> at
>> org
>> .topbraid
>> .spin
>> .model
>> .impl
>> .AbstractSPINResourceImpl.toString(AbstractSPINResourceImpl.java:202)
>> at
>> org.topbraid.spin.arq.SPINARQFunction.<init>(SPINARQFunction.java:49)
>> ... 7 more
>>
>>
>>
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