code: public Result<List<Data>> readByUser(AuthzTrans trans, final String user) {
  		DAOGetter getter = new DAOGetter(trans,dao()) {
  			public Result<List<Data>> call() {
  				// If the call is for THIS user, and it exists, get from TRANS, add to TRANS if not.
  				if(user!=null && user.equals(trans.user())) {
  					Result<List<Data>> transLD = trans.get(transURSlot,null);
  					if(transLD==null ) {
  						transLD = dao.readByUser(trans, user);
  					}
  					return transLD;
  				} else {
  					return dao.readByUser(trans, user);
  				}
  			}
  		};
  		Result<List<Data>> lurd = get(trans, user, getter);
  		if(lurd.isOK() && lurd.isEmpty()) {
  			return Result.err(Status.ERR_UserRoleNotFound,"UserRole not found for [%s]",user);
  		}
  		return lurd;
  	}
docs: Special Case.
  User Roles by User are very likely to be called many times in a Transaction, to validate "May User do..."
  Pull result, and make accessible by the Trans, which is always keyed by User.
  @param trans
  @param user
  @return