Examples with OntClass org.apache.jena.ontology.OntClass used on opensource projects

Example 26 with OntClass

use of org.apache.jena.ontology.OntClass in project jena by apache.

the class ClassHierarchy method showClass.

// Internal implementation methods
// ////////////////////////////////
/**
 * Present a class, then recurse down to the sub-classes.
 *  Use occurs check to prevent getting stuck in a loop
 */
protected void showClass(PrintStream out, OntClass cls, List<OntClass> occurs, int depth) {
    renderClassDescription(out, cls, depth);
    out.println();
    // recurse to the next level down
    if (cls.canAs(OntClass.class) && !occurs.contains(cls)) {
        for (Iterator<OntClass> i = cls.listSubClasses(true); i.hasNext(); ) {
            OntClass sub = i.next();
            // we push this expression on the occurs list before we recurse
            occurs.add(cls);
            showClass(out, sub, occurs, depth + 1);
            occurs.remove(cls);
        }
    }
}