Hello,
I'm using the SPIN API (latest version) to try to execute a spin:rule on a
model (_model). The actual rule predicate being processed is a subproperty of
spin:rule and is defined as follows in my Ontology:
CONSTRUCT {
?this Advise:failureRate 10.0 .
}
WHERE {
?this Advise:failureRate ?rate .
}
(This is just a dummy query to see if I can get the spin rules stuff working).
In my code I call:
SPINInferences.run(_model, spinInfModel,
_spinRulesClass2QueryMap, initialTemplateBindings, exp,
_spinRuleStats, true, inferenceType.inferenceProp(),
null, null);
I write the _model to file just before the call, and it looks good (the above
query works correctly on it when run in TBC). However, when the code runs I
don't get any results.
One interesting thing is I print out the query inside
SPINInferences.runQueryOnClass using
System.out.println(arq.toString());
And it lists:
CONSTRUCT
{ spin:_this Advise:failureRate 10.0 .}
WHERE
{ ?this rdf:type ?TYPE_CLASS .
spin:_this Advise:failureRate ?rate
}
So the class2Query stuff seems to be finding my spin:rule predicate ok, but the
query looks a little strange with the spin:_this.
I also print out the query solution map (i.e. bindings):
TYPE_CLASS = http://www.boeing.com/IVHM/Advise.owl#Failure
The above query seems a little funny since (as far as I can tell) it is passed
directly into the ARQ function of qexec.execConstruct(), which I'm guessing
isn't going to match up spin:_this with anything in my model. Any ideas what's
going on here?
Thanks,
Jeff
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