Hibernate несколько Scalar

Scalar штука описывающая какие поля будут возвращены, ниже пример и как получить несколько Scalar

public String getXMLTags() throws SQLException, NoSuchMethodException {
    Session session = null;
    List tags = null;
    try {
        session = HibernateUtil.getSessionFactory().getCurrentSession();
        session.beginTransaction();
        tags = session.createSQLQuery("select count(aa.id_tag) as size, tags.name, tags.id " +
                "from (select tagsandbook.id_tag " +
                "from usersandbooks, tagsandbook " +
                "where tagsandbook.id_book = usersandbooks.id_book) as aa, tags " +
                "where  tags.id = aa.id_tag " +
                "group by aa.id_tag").addScalar("name").addScalar("size").addScalar("id").list();
            session.getTransaction().commit();
        } finally {
            if (session != null && session.isOpen())
                session.close();
        }

        Iterator it = tags.iterator();
        String resultString = "<tags>";
        while(it.hasNext()){
            Object[] row = (Object[])  it.next();
            resultString += "<tag>";
            resultString += "<name>" + row[0] + "</name>";
            resultString += "<size>" + row[1] + "</size>";
            resultString += "<id>" + row[2] + "</id>";
            resultString += "<meuPeso>6</meuPeso>";
            resultString += "</tag>";
        }
        resultString+="</tags>";

        return resultString;
    }