com.google.appengine.api.taskqueue (Google App Engine API for Java)

Package com.google.appengine.api.taskqueue

Provides a mechanism to perform work initiated by a user request, outside of that request.

See: Description

• Interface Summary 

  Interface	Description
  DeferredTask	Interface for deferred tasks.
  IQueueFactory	Creates Queue objects.
  Queue	Queue is used to manage a task queue.

• Class Summary 

  Class	Description
  DeferredTaskContext	Resources for managing DeferredTask.
  IQueueFactoryProvider	Factory provider for IQueueFactory.
  LeaseOptions	Contains various options for lease requests following the builder pattern.
  LeaseOptions.Builder	Provides static creation methods for LeaseOptions.
  QueueConstants	Describes various taskqueue limits.
  QueueFactory	Creates Queue objects.
  QueueStatistics	QueueStatistics allow observation of the rate that tasks on a given queue are being executed.
  RetryOptions	Contains various options for a task's retry strategy.
  RetryOptions.Builder	Provides static creation methods for RetryOptions.
  TaskHandle	Created from Queue.add(TaskOptions).
  TaskOptions	Contains various options for a task following the builder pattern.
  TaskOptions.Builder	Provides static creation methods for TaskOptions.

• Enum Summary 

  Enum	Description
  TaskOptions.Method	Methods supported by Queue.

• Exception Summary 

  Exception	Description
  DeferredTaskCreationException	Indicates a failure to create a task payload.
  InternalFailureException	Internal task queue error.
  InvalidQueueModeException	Mismatch of task method and queue mode.
  QueueFailureException	Unspecified queue failure.
  QueueNameMismatchException	Queue name mismatch failure.
  TaskAlreadyExistsException	One or more task names already exists in the queue.
  TransactionalTaskException	Queue operation failure caused by Datastore exception
  TransientFailureException	Intermittent failure.
  UnsupportedTranslationException	Attempt to convert String to an unsupported charset.

Package com.google.appengine.api.taskqueue Description

Provides a mechanism to perform work initiated by a user request, outside of that request.

See Also:

Queue, The Task Queue Java API in the Google App Engine Developer's Guide.