java - Jena; How to check A subClassOf B without iterating A super classes nor B sub classes -

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let's have ontology manipulated jena , 2 ontology classes (ontclass), , b. there method check

a subclassof b

without iterating through super classes , checking if b among them. without iterating b sub classes , checking if among them. mean

a.issubclassof(b)

the best place check documentation. (actually, using ide has support autocompletion make easy find, too.) in case, documentation ontclass has 2 methods you're asking for. it's not issubclass, rather hassubclass(resource). there's hassuperclass(resource). instance, check whether subclass of b, do:

ontclass = ...; ontclass b = ...;  a.hassuperclass(b); // have b superclass? b.hassubclass(a);   // b have subclass?

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