compact1, compact2, compact3
java.util.concurrent
Class ThreadPoolExecutor.DiscardOldestPolicy
- java.lang.Object
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- java.util.concurrent.ThreadPoolExecutor.DiscardOldestPolicy
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- 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 retriesexecute, unless the executor is shut down, in which case the task is discarded.
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Constructor Summary
Constructors Constructor and Description DiscardOldestPolicy()Creates aDiscardOldestPolicyfor the given executor.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method and Description 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.
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Constructor Detail
DiscardOldestPolicy
public DiscardOldestPolicy()
Creates aDiscardOldestPolicyfor the given executor.
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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:
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rejectedExecutionin interfaceRejectedExecutionHandler - Parameters:
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r- the runnable task requested to be executed -
e- the executor attempting to execute this task
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