org.semanticweb.owlapi.model.AsOWLClass Maven / Gradle / Ivy

package org.semanticweb.owlapi.model;

/**
 * Convert to OWLClass interface.
 */
public interface AsOWLClass {

    /**
     * A convenience method that determines if this entity is an OWLClass.
     *
     * @return {@code true} if this entity is an OWLClass, otherwise {@code false}
     */
    default boolean isOWLClass() {
        return false;
    }

    /**
     * A convenience method that obtains this entity as an OWLClass (in order to
     * avoid explicit casting).
     *
     * @return The entity as an OWLClass.
     * @throws OWLRuntimeException if this entity is not an OWLClass (check with the isOWLClass
     * method first).
     */
    default OWLClass asOWLClass() {
        if (isOWLClass()) {
            return (OWLClass) this;
        }
        throw new ClassCastException(getClass().getName() + "is not an OWLClass");
    }
}