OWLAPI 5：如何在我的本体的类上进行迭代以插入个人？

Question

我用protégé5构建了一个小型本体，其中包含4个类：类Person及其子类（Student，Lecturer）和Module及其子类（MathModule和CSModule），我有两个对象属性：教学和研究。我仍然是OWL API的初学者，我要做的是加载此本体并在不同的类（包括子类）上进行迭代，以针对对象属性创建和插入个人。我仅针对一个班级开始这样做，但是我不确定如何在其余班级上做到这一点。

public class adding_individuals {
    public static void main(String[] args) throws OWLOntologyCreationException, OWLOntologyStorageException {

        OWLOntologyManager manager = OWLManager.createOWLOntologyManager();
        try {

            OWLOntology ontology = manager.loadOntologyFromOntologyDocument(new File("C:\\..\\university.owl"));
            OWLDataFactory dataFactory = manager.getOWLDataFactory();
            //:lecturer 3 is an instance of the class :Lecturer and CS101 is an instance of CSModule
            OWLClass Lecturer = dataFactory.getOWLClass(":Lecturer");
            OWLClass CSModule = dataFactory.getOWLClass(":CSModule");
            OWLNamedIndividual lecturer3 = dataFactory.getOWLNamedIndividual(":lecturer3");
            OWLNamedIndividual CS101 = dataFactory.getOWLNamedIndividual(":CS101");
            // create a property "teaches"
            OWLObjectProperty teaches = dataFactory.getOWLObjectProperty(":teaches");
            // To specify that :lecturer3 is related to :CS101 via the :teaches property, we create an object property
            // assertion and add it to the ontology
            OWLObjectPropertyAssertionAxiom propertyAssertion = dataFactory.getOWLObjectPropertyAssertionAxiom(teaches, lecturer3, CS101);
            manager.addAxiom(ontology, propertyAssertion);

            // Dump the ontology
            StreamDocumentTarget target = new StreamDocumentTarget(new ByteArrayOutputStream());

            manager.saveOntology(ontology);
        } catch (OWLOntologyCreationException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (OWLOntologyStorageException eo) {
            // TODO Auto-generated catch block
            eo.printStackTrace();
        }
    }
}

Answer 1

要遍历所有类，请使用ontology.classesInSignature()（在OWLAPI 5中，否则为ontology.getClassesInSignature()）。

但是，我假设您将需要一些更精确的标准来选择要使用的类-对所有类进行迭代将包括对所有Persons和Modules进行迭代。我认为您需要更具选择性。