criteria.addEqualTo("keyTeacher",teacher.getIdInternal());
criteria.addEqualTo("keyOrientationTeacher",teacher.getIdInternal());
    public PublicationTeacher readByTeacherAndPublication(Teacher teacher,			Publication publication) throws ExcepcaoPersistencia{    	Criteria criteria = new Criteria();        criteria.addEqualTo("keyTeacher",teacher.getIdInternal());        criteria.addEqualTo("keyPublication",publication.getIdInternal());    	return (PublicationTeacher) queryObject(PublicationTeacher.class, criteria);    }