OntModel onto = ModelFactory.createOntologyModel(
OntModelSpec.OWL_MEM_MICRO_RULE_INF, null );
String inputFileName = "./src/test.xml";
InputStream in = FileManager.get().open(inputFileName);
if (in == null) {
throw new IllegalArgumentException( "File: " + inputFileName + " not found");
}
onto.read(new InputStreamReader(in), "");
//ns is the namespace...
OntClass userClass = onto.getOntClass(ns+"User");
Individual dada = onto.createIndividual(ns+"Daryl", userClass);
Property prefBathtub = onto.getProperty(ns+"prefersBathtub");
Property prefBathtubWt = onto.getProperty(ns+"prefersBathtubWeight");
dada.addLiteral(prefBathtub, true);
dada.addLiteral(prefBathtubWt, 0.30);
OutputStream out = new FileOutputStream("./src/test2.xml");
onto.write( out, "RDF/XML"); // readable rdf/xml
out.close();
如何使用 OntProperty 和/或 DatatypeProperty 而不仅仅是 Property?
通过使用属性,我可以获得相同数量的表现力吗?