CausalChangeNotifier class

A ChangeNotifier that automatically tracks state mutations in the TrinityEventBus causal graph.

Extend this instead of ChangeNotifier to get automatic causality tracking.

Usage

class CartModel extends CausalChangeNotifier {
  final List<String> _items = [];
  List<String> get items => List.unmodifiable(_items);

  void addItem(String item) {
    _items.add(item);
    notifyListeners(); // Automatically emits a causal event
  }
}

Inheritance

• Object
• ChangeNotifier
• CausalChangeNotifier

Constructors

CausalChangeNotifier()

Properties

causalDescription → String

Override to provide a custom description for the causal event. Defaults to runtimeType: state_changed.

no setter

hashCode → int

The hash code for this object.

no setter, inherited

hasListeners → bool

Whether any listeners are currently registered.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

addListener(VoidCallback listener) → void

Register a closure to be called when the object changes.

inherited

dispose() → void

Discards any resources used by the object.

inherited

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

notifyListeners() → void

Call all the registered listeners.

override

removeListener(VoidCallback listener) → void

Remove a previously registered closure from the list of closures that are notified when the object changes.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited