code: public void init (PlaceManager plmgr, RootDObjectManager omgr, InvocationManager invmgr)
      {
          _plmgr = plmgr;
          _omgr = omgr;
          _invmgr = invmgr;
      }
docs: Called by the place manager when this delegate is registered with it. This will happen
  before any calls to {@link #didInit}, etc.