Class ThreadPoolExecutor.DiscardOldestPolicy
- java.lang.Object
-
- java.util.concurrent.ThreadPoolExecutor.DiscardOldestPolicy
- All Implemented Interfaces:
RejectedExecutionHandler
- Enclosing class:
- ThreadPoolExecutor
public static class ThreadPoolExecutor.DiscardOldestPolicy extends Object implements RejectedExecutionHandler
A handler for rejected tasks that discards the oldest unhandled request and then retries execute
, unless the executor is shut down, in which case the task is discarded.
Constructor Summary
Constructor | Description |
---|---|
DiscardOldestPolicy() | Creates a |
Method Summary
Modifier and Type | Method | Description |
---|---|---|
void | rejectedExecution(Runnable r,
ThreadPoolExecutor e) | Obtains and ignores the next task that the executor would otherwise execute, if one is immediately available, and then retries execution of task r, unless the executor is shut down, in which case task r is instead discarded. |
Methods declared in class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Constructor Detail
DiscardOldestPolicy
public DiscardOldestPolicy()
Creates a DiscardOldestPolicy
for the given executor.
Method Detail
rejectedExecution
public void rejectedExecution(Runnable r, ThreadPoolExecutor e)
Obtains and ignores the next task that the executor would otherwise execute, if one is immediately available, and then retries execution of task r, unless the executor is shut down, in which case task r is instead discarded.
- Specified by:
-
rejectedExecution
in interfaceRejectedExecutionHandler
- Parameters:
-
r
- the runnable task requested to be executed -
e
- the executor attempting to execute this task