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org.apache.cocoon.components.thread
Class LinkedQueue

java.lang.Object
  EDU.oswego.cs.dl.util.concurrent.LinkedQueue
      org.apache.cocoon.components.thread.LinkedQueue

All Implemented Interfaces:

EDU.oswego.cs.dl.util.concurrent.Channel, EDU.oswego.cs.dl.util.concurrent.Puttable, EDU.oswego.cs.dl.util.concurrent.Takable, Queue

public class LinkedQueue
extends EDU.oswego.cs.dl.util.concurrent.LinkedQueue
implements Queue

A linked list based channel implementation. The algorithm avoids contention between puts and takes when the queue is not empty. Normally a put and a take can proceed simultaneously. (Although it does not allow multiple concurrent puts or takes.) This class tends to perform more efficently than other Queue implementations in producer/consumer applications.

[ Introduction to this package. ]

Field Summary

Fields inherited from class EDU.oswego.cs.dl.util.concurrent.LinkedQueue

head_, last_, putLock_, waitingForTake_

Constructor Summary

LinkedQueue()

Method Summary

int	getQueueSize() get the current queue size

Methods inherited from class EDU.oswego.cs.dl.util.concurrent.LinkedQueue

extract, insert, isEmpty, offer, peek, poll, put, take

Methods inherited from class java.lang.Object

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

Methods inherited from interface EDU.oswego.cs.dl.util.concurrent.Channel

offer, peek, poll, put, take

Constructor Detail

LinkedQueue

public LinkedQueue()

Method Detail

getQueueSize

public int getQueueSize()

Description copied from interface: Queue

get the current queue size

Specified by:

getQueueSize in interface Queue

Returns:

current size of queue. If the size of the queue is not maintained by an implementation -1 should be returned.

See Also:

Queue.getQueueSize()