FeatureObserver<State, Msg, Effect> class abstract

A base class for observing feature lifecycle events and interactions.

FeatureObserver provides hooks to monitor a feature's lifecycle, state changes, messages, and effects. This is useful for debugging, logging, or analytics.

Hooks:

• onCreate: Called when the feature is created. Provides the feature instance.
• onInit: Called when the feature is initialized.
• onDispose: Called when the feature is disposed.
• onState: Called when the feature's state changes.
• onMsg: Called when a message is accepted by the feature.
• onEffect: Called when an effect is emitted by the feature.

Usage:

Extend this class and override the hooks you need. Attach the observer using the observe extension.

Example:

class MyObserver extends FeatureObserver<MyState, MyMsg, MyEffect> {
  @override
  void onState(MyState state) {
    print('State changed: $state');
  }

  @override
  void onMsg(MyMsg message) {
    print('Message received: $message');
  }
}