UseCaseBuilder class

Standard implementation of UseCaseBuilderBase for creating use cases.

Connects an event type to a use case generator, enabling the bloc to route events to the appropriate handler.

Example:

class CounterBloc extends JuiceBloc<CounterState> {
  CounterBloc() : super(CounterState(), [
    () => UseCaseBuilder(
      typeOfEvent: IncrementEvent,
      useCaseGenerator: () => IncrementUseCase(),
    ),
    () => UseCaseBuilder(
      typeOfEvent: LoadDataEvent,
      useCaseGenerator: () => LoadDataUseCase(),
      initialEventBuilder: () => LoadDataEvent(), // Auto-fires on init
    ),
  ]);
}

Implemented types

• UseCaseBuilderBase

Constructors

UseCaseBuilder({required Type typeOfEvent, required UseCaseGenerator useCaseGenerator, UseCaseEventBuilder? initialEventBuilder, EventConcurrency concurrency = EventConcurrency.concurrent})

Creates a use case builder.

Properties

concurrency → EventConcurrency

How same-type events are processed relative to one another.

final

eventType → Type

The type of event this use case handles.

no setter, override

generator → UseCaseGenerator

Creates the use case instance that will handle events.

no setter, override

hashCode → int

The hash code for this object.

no setter, inherited

initialEventBuilder → UseCaseEventBuilder?

Optional builder for creating an initial event when the bloc starts.

no setter, override

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

typeOfEvent → Type

The type of event this use case handles.

final

useCaseGenerator → UseCaseGenerator

Function that creates the use case instance.

final

Methods

close() → Future<void>

Cleanup method called when the use case is disposed.

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