code: public void assignGroupInDb(final JAASSystem _jaasSystem,
                                  final Group _group)
          throws EFapsException
      {
          assignToUserObjectInDb(CIAdminUser.Person2Group.getType(), _jaasSystem, _group);
      }
docs: For this person, a group is assigned for the given JAAS system.
  
  @param _jaasSystem JAAS system for which the group is assigned
  @param _group group to assign
  @throws EFapsException on error
  @see AbstractUserObject#assignToUserObjectInDb