class AbstractMeta implements ChangedFlagInterface, UndoInterface, HasDatabasesInterface, VariableSpace,
  EngineMetaInterface, NamedParams, HasSlaveServersInterface, AttributesInterface, HasRepositoryInterface,
  LoggingObjectInterface {

  public void addNameChangedListener( NameChangedListener listener ) {
    if ( nameChangedListeners == null ) {
      nameChangedListeners = new ArrayList<NameChangedListener>();
    }
    if ( listener != null ) {
      nameChangedListeners.add( listener );
    }
  }

}