AppTaskExecutor

Runs an AppTask by putting it on the AppTaskController queue.

Each time it is resumed (e.g. by a PeriodicTrigger), the executor is wrapped in a new UserTask and enqueued. The app then starts, cancels or finishes the task with UserTask.onStart, UserTask.onCancel and UserTask.onDone. The executor pauses itself again after 5 seconds, so it can be resumed by the next trigger.

Special-purpose UserTasks are created by a UserTaskFactory registered with AppTaskController.registerUserTaskFactory.

Inheritance

• Object
• AbstractExecutor<TConfig>
• AggregateExecutor<TConfig>
• TaskExecutor<TConfig>
• AppTaskExecutor

Constructors

AppTaskExecutor

AppTaskExecutor<TConfig extends AppTask>()

Properties

probes

1. @override

List<Probe> get probes

override

The probes in this task executor. Empty for tasks without measures.

Methods

onInitialize

1. @override

bool onInitialize()

override

Called by initialize. Returns true if successfully initialized.

If false, the executor stays in ExecutorState.Created. This is a synchronous method and must be light-weight.

onPause

1. @override

Future<bool> onPause()

override

Called by pause. Returns true if successfully paused.

If false, the state is not changed.

onResume

1. @override

Future<bool> onResume()

override

Called by resume. Returns true if successfully resumed.

If false, the executor moves to ExecutorState.PausedButShouldBeResumed.