TaskDecorator (Spring Framework 4.3.30.RELEASE API)

```
public interface TaskDecorator
```
A callback interface for a decorator to be applied to any Runnable about to be executed.
Note that such a decorator is not necessarily being applied to the user-supplied Runnable/Callable but rather to the actual execution callback (which may be a wrapper around the user-supplied task).
The primary use case is to set some execution context around the task's invocation, or to provide some monitoring/statistics for task execution.
NOTE: Exception handling in TaskDecorator implementations may be limited. Specifically in case of a Future-based operation, the exposed Runnable will be a wrapper which does not propagate any exceptions from its run method.
Since:
4.3
Author:
Juergen Hoeller
See Also:
TaskExecutor.execute(Runnable), SimpleAsyncTaskExecutor.setTaskDecorator(org.springframework.core.task.TaskDecorator), TaskExecutorAdapter.setTaskDecorator(org.springframework.core.task.TaskDecorator)

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Runnable`	`decorate(Runnable runnable)`	Decorate the given `Runnable`, returning a potentially wrapped `Runnable` for actual execution, internally delegating to the original `Runnable.run()` implementation.

- Method Detail
  - decorate
```
Runnable decorate(Runnable runnable)
```
    Decorate the given Runnable, returning a potentially wrapped Runnable for actual execution, internally delegating to the original Runnable.run() implementation.
    Parameters:
    runnable - the original Runnable
    Returns:
    the decorated Runnable