Question:
I am new to Jena. I want to create a new OntModel and need to imports some other ontology to this model.If I write it to file, I expect the file can show something like follow:
<owl:Ontology rdf:about=""> <owl:imports rdf:resource="http://test.owl#"/> </owl:Ontology> Right now, I dont know how to import other ontology to the model by jena. Can any one give me some advices?
Thank you
Solution:1
See jena's Ontology API (which sits over the RDF api) and in particular the imports section.
To make something like you want, try:
String base = "http://www.example.com/ont"; OntModel model = ModelFactory.createOntologyModel(); Ontology ont = model.createOntology(""); ont.addImport(model.createResource("http://test.owl#")); model.write(System.out, "RDF/XML-ABBREV", base); Result:
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:owl="http://www.w3.org/2002/07/owl#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" xml:base="http://www.example.com/ont"> <owl:Ontology rdf:about=""> <owl:imports rdf:resource="http://test.owl#"/> </owl:Ontology> </rdf:RDF> Note:If u also have question or solution just comment us below or mail us on toontricks1994@gmail.com
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