如何为超类编写Hibernate Criteria查询,并检查某个子类？

@Entity
@Inheritance(strategy = InheritanceType.JOINED)
public class SuperClass {
    // 超类属性
}

@Entity
@DiscriminatorValue("subclass")
public class SubClass extends SuperClass {
    // 子类属性
}

public List<SuperClass> getSuperClassWithSubClass() {
    Session session = sessionFactory.openSession();
    Criteria criteria = session.createCriteria(SuperClass.class);
    criteria.add(Restrictions.eq("class", SubClass.class));
    return criteria.list();
}