Session session = null;
RightsGroup group = null;
try {
sessionFactory = HibernateSessionFactory.getInstance();
session = sessionFactory.openSession();
Criteria c = session.createCriteria(RightsGroup.class);
c.add(Restrictions.eq("groupName", groupName));
List<RightsGroup> lstRights = c.list();
if(lstRights != null && lstRights.size() > 0) {
group = lstRights.get(0);
}