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Java Standard Edition (SE)

ThreadPoolExecutor.DiscardOldestPolicy


compact1, compact2, compact3
java.util.concurrent

Class 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 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 interface RejectedExecutionHandler
        Parameters:
        r - the runnable task requested to be executed
        e - the executor attempting to execute this task


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