Query query = session.createQuery("select DISTINCT c.groupmembers.groups.groupId from Meetingmembers " +
                  "as c where c.meetings.meetingId = :UserId AND deleted != :deleted");
         query.setLong("UserId", meetingId);
         query.setBoolean("deleted", true);
         List<Long> ll = query.list();
         
//         Criteria crit = session.createCriteria(Meetingmembers.class, "meetings");
//         crit.add(Restrictions.eq("deleted", false));
//         
//         Criteria subcrit1 = crit.createCriteria("meetings");
//         subcrit1.add(Restrictions.eq("meetingId", meetingId));
//         
//         Criteria subcrit2 = crit.createCriteria("groupmembers");
//         
//         ProjectionList projections = Projections.projectionList();
//                   projections.add(Projections.property("groups"));
//                        subcrit2.setProjection(Projections.distinct(projections));
//         
//         List ll = subcrit2.list();