add specified event notifier to event notifier group concode_field_sep Set<EventNotifier> _group concode_field_sep Collection<EventNotifier> getNotifiers concode_elem_sep boolean addNotifiers concode_elem_sep boolean removeNotifiers concode_elem_sep void notify concode_elem_sep boolean removeNotifier
boolean function ( EventNotifier arg0 ) { return _group . add ( arg0 ) ; }