CausalityProviderObserver class

A ProviderObserver that records all Riverpod provider state changes as causal events in the TrinityEventBus.

Usage

void main() {
  runApp(
    ProviderScope(
      observers: [CausalityProviderObserver()],
      child: const MyApp(),
    ),
  );
}

Records:

  • Provider additions (initialization)
  • Provider updates (state changes)
  • Provider disposals
  • Provider errors

All recording is assert-guarded — zero overhead in release builds.

Constructors

CausalityProviderObserver()

Properties

hashCode → int
The hash code for this object.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

didAddProvider(ProviderBase<Object?> provider, Object? value, ProviderContainer container) → void
A provider was initialized, and the value exposed is value.
didDisposeProvider(ProviderBase<Object?> provider, ProviderContainer container) → void
A provider was disposed
didUpdateProvider(ProviderBase<Object?> provider, Object? previousValue, Object? newValue, ProviderContainer container) → void
Called by providers when they emit a notification.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
providerDidFail(ProviderBase<Object?> provider, Object error, StackTrace stackTrace, ProviderContainer container) → void
A provider emitted an error, be it by throwing during initialization or by having a Future/Stream emit an error
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited