public Integer batchSave(Session session, String insertSql, String tableName){
        Transaction tx = session.beginTransaction();
        Integer result = -1;
        String queryString = 
                "SELECT last_insert_id() FROM "+tableName+" LIMIT 1;";
        try {
            tx.begin();
            result = [color=#FF0000]session.createSQLQuery(insertSql).executeUpdate();[/color]
            session.flush();
            tx.commit();
            if(result > 0)
                return(new Integer([color=#FF0000]session.createSQLQuery(queryString).list()[/color].get(0).toString()));
        } catch (DataAccessException e) {
            e.printStackTrace();
            if (tx != null) {
                tx.rollback();
            }
        }
        return null;
    }