code: public void assignRoleInDb(final JAASSystem _jaasSystem,
                                 final Role _role)
          throws EFapsException
      {
          assignToUserObjectInDb(CIAdminUser.Person2Role.getType(), _jaasSystem, _role);
      }
docs: For this person, a role is assigned for the given JAAS system.
  
  @param _jaasSystem JAAS system for which the role is assigned
  @param _role role to assign
  @see AbstractUserObject#assignToUserObjectInDb(Type, JAASSystem,
  AbstractUserObject)
  @throws EFapsException on error