HQL for SQL in Java 5

Is it possible to translate, at runtime, an HSQL statement in SQL using the EntityManager?

I found this solution, but I don't have sessionFactory, I have EntityManager

protected String toSql(String hqlQueryText) {
    if (sessionFactory != null && hqlQueryText != null && hqlQueryText.trim().length() > 0) {
        final QueryTranslatorFactory translatorFactory = new ASTQueryTranslatorFactory();
        final SessionFactoryImplementor factory = (SessionFactoryImplementor) sessionFactory;
        final QueryTranslator translator = translatorFactory.createQueryTranslator(hqlQueryText, hqlQueryText,
        Collections.EMPTY_MAP, factory);
        translator.compile(Collections.EMPTY_MAP, false);
        return translator.getSQLString();
        }
    return null;
}