OWLAPI5:如何迭代我的本体的类来插入个体?

4jb9z9bj  于 2021-08-13  发布在  Java
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我用prot建立了一个小本体é克é 其中包含4个类:类人及其子类(学生、讲师)和类模块及其子类(mathmodule和csmodule),我有两个对象属性:教学和学习。我仍然是owlapi的初学者,我想做的是加载这个本体并迭代不同的类(包括子类),以便创建和插入与对象属性相关的个体。我开始做这个只有一个班,但我不知道我怎么能为其余的类。

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();
        }
    }
}
gg0vcinb

gg0vcinb1#

要迭代所有类,请使用 ontology.classesInSignature() (在API 5中,否则 ontology.getClassesInSignature() ).
但是,我假设您需要一些更精确的标准来选择要使用的类—对所有类的迭代将包括对所有类的迭代 Persons 以及 Modules . 我想你应该有更多的选择。

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