((GrantableImpl)grantable).setSignet(this);
  void reconcileGrantables    (Collection grantables,     Date       date,     Set        changedGrantables)  {    Iterator grantablesIterator = grantables.iterator();    while (grantablesIterator.hasNext())    {      Grantable grantable = (Grantable)(grantablesIterator.next());      if (grantable.evaluate(date))      {        grantable.save();        changedGrantables.add(grantable);      }    }      }