FallbackStrategy<T> class final

Strategy that converts final pipeline failures into results.

Cancellation always bypasses fallback handling, even when fallbackIf is FallbackPredicate.any.

Inheritance

• Object
• RetryPipelineStrategy<T>
• FallbackStrategy

Constructors

FallbackStrategy.callback(FutureOr<T> callback(FallbackContext<T> context), {String? name, FallbackPredicate<T>? fallbackIf, FutureOr<void> onFallback(FallbackContext<T> context)?})

Creates fallback with a callback.

factory

FallbackStrategy.value(T value, {String? name, FallbackPredicate<T>? fallbackIf, FutureOr<void> onFallback(FallbackContext<T> context)?})

Creates fallback with a static value.

factory

Properties

fallback → FutureOr<T> Function(FallbackContext<T> context)

Computes fallback result.

final

fallbackIf → FallbackPredicate<T>

Decides whether fallback applies.

final

hashCode → int

The hash code for this object.

no setter, inherited

name → String?

Optional strategy instance name used in telemetry source.

final, inherited

onFallback → FutureOr<void> Function(FallbackContext<T> context)?

Called before fallback produces a result.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

execute(RetryPipelineContext<T> context, Future<T> next()) → Future<T>

Executes this strategy around next.

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited