edu.emory.mathcs.backport.java.util.concurrent

Class ThreadPoolExecutor.DiscardOldestPolicy

public static class ThreadPoolExecutor.DiscardOldestPolicy extends Object implements RejectedExecutionHandler

A handler for rejected tasks that discards the oldest unhandled request and then retries {@code execute}, unless the executor is shut down, in which case the task is discarded.
Constructor Summary
DiscardOldestPolicy()
Creates a {@code DiscardOldestPolicy} for the given executor.
Method Summary
voidrejectedExecution(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.

Constructor Detail

DiscardOldestPolicy

public DiscardOldestPolicy()
Creates a {@code 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.

Parameters: r the runnable task requested to be executed e the executor attempting to execute this task