/**
   * This handles model notifications by calling {@link #updateChildren} to update any cached
   * children and by creating a viewer notification, which it passes to {@link #fireNotifyChanged}.
   * <!-- begin-user-doc -->
   * <!-- end-user-doc -->
   *
   * @generated
   */
  @Override
  public void notifyChanged(Notification notification) {
    updateChildren(notification);

    switch (notification.getFeatureID(GraphElement.class)) {
      case UmaPackage.GRAPH_ELEMENT__CONTAINED:
      case UmaPackage.GRAPH_ELEMENT__LINK:
      case UmaPackage.GRAPH_ELEMENT__ANCHORAGE:
      case UmaPackage.GRAPH_ELEMENT__SEMANTIC_MODEL:
        fireNotifyChanged(
            new ViewerNotification(notification, notification.getNotifier(), true, false));
        return;
    }
    super.notifyChanged(notification);
  }