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See:
Description
| Interface Summary | |
|---|---|
| DeferredTask | Interface for deferred tasks. |
| Queue | Queue is used to manage a task queue. |
| Class Summary | |
|---|---|
| DeferredTaskContext | Resources for managing DeferredTask. |
| 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 | |
|---|---|
| TaskOptions.Method | Methods supported by Queue. |
| Exception Summary | |
|---|---|
| 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 | The task name 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. |
Provides a mechanism to perform work initiated by a user request, outside of that request.
Queue,
The
Task Queue Java API in the Google App Engine Developer's
Guide.
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