EDU.oswego.cs.dl.util.concurrent
Class PooledExecutor.DiscardOldestWhenBlocked

java.lang.Object
  EDU.oswego.cs.dl.util.concurrent.PooledExecutor.DiscardOldestWhenBlocked

All Implemented Interfaces:

PooledExecutor.BlockedExecutionHandler

Enclosing class:

PooledExecutor

protected class PooledExecutor.DiscardOldestWhenBlocked
extends java.lang.Object
implements PooledExecutor.BlockedExecutionHandler

Class defining DiscardOldest action. Under this policy, at most one old unhandled task is discarded. If the new task can then be handed off, it is. Otherwise, the new task is run in the current thread (i.e., RunWhenBlocked is used as a backup policy.)

Constructor Summary

protected

PooledExecutor.DiscardOldestWhenBlocked()

Method Summary

boolean

blockedAction(java.lang.Runnable command) Return true if successfully handled so, execute should terminate; else return false if execute loop should be retried.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PooledExecutor.DiscardOldestWhenBlocked

protected PooledExecutor.DiscardOldestWhenBlocked()

Method Detail

blockedAction

public boolean blockedAction(java.lang.Runnable command)
                      throws java.lang.InterruptedException

Description copied from interface: PooledExecutor.BlockedExecutionHandler

Return true if successfully handled so, execute should terminate; else return false if execute loop should be retried.

Specified by:

blockedAction in interface PooledExecutor.BlockedExecutionHandler

Throws:

java.lang.InterruptedException