org.archive.queue
Class LinkedQueue

java.lang.Object
  EDU.oswego.cs.dl.util.concurrent.LinkedQueue
      org.archive.queue.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, java.io.Serializable

public class LinkedQueue
extends EDU.oswego.cs.dl.util.concurrent.LinkedQueue
implements java.io.Serializable

Version of LinkedQueue (from util.concurrent) which gives more options for understanding its contents: a running count of entries and an iterator.

Author:

gojomo

See Also:

Serialized Form

Nested Class Summary

class

LinkedQueue.LinkedQueueIterator Iterator over contents of a org.archive.queue.LinkedQueue.

Field Summary

protected int

count Count of items in queue.

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

head_, last_, putLock_, waitingForTake_

Constructor Summary

LinkedQueue()

Method Summary

protected java.lang.Object	extract()
int	getCount() Return a count of entries in the queue.
protected void	insert(java.lang.Object x)
java.util.Iterator	iterator()

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

isEmpty, offer, peek, poll, put, take

Methods inherited from class java.lang.Object

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

Field Detail

count

protected int count

Count of items in queue.

Constructor Detail

LinkedQueue

public LinkedQueue()

Method Detail

extract

protected java.lang.Object extract()

Overrides:

extract in class EDU.oswego.cs.dl.util.concurrent.LinkedQueue

insert

protected void insert(java.lang.Object x)

Overrides:

insert in class EDU.oswego.cs.dl.util.concurrent.LinkedQueue

getCount

public int getCount()

Return a count of entries in the queue. Note that this counter's maintenance and access is generally unsynchronized, and so may not reflect all inserts/extracts in progress.

Returns:

count of items in queue

iterator

public java.util.Iterator iterator()