handleNotification method

@override void handleNotification(AtKey key, AtValue value, String? operation)

How to handle notifications received by the internal notificationSubscription.

Possible operations are: 'update', 'append', 'remove', 'delete', 'init', null

These operations are the same as AtNotification, with an additional 'init' operation which is used by getKeys() to indicate that this key was preloaded.

Implementation

@override
void handleNotification(AtKey key, AtValue value, String? operation) {
  switch (operation) {
    case 'delete':
    case 'remove':
      store.remove(_generateRef(key, value));
      break;
    case 'init':
    case 'update':
    case 'append':
    default:
      store[_generateRef(key, value)] = convert(key, value)! as T;
  }
  controller.add(_castTo(store.values));
}