anon.util
Class ObjectQueue

java.lang.Object
  anon.util.ObjectQueue

public class ObjectQueue
extends java.lang.Object

This is a generic object queue.

Author:

Rolf Wendolsky

Nested Class Summary

private class

ObjectQueue.QueueItem

Field Summary

private ObjectQueue.QueueItem	m_foot
private ObjectQueue.QueueItem	m_head
private int	m_size

Constructor Summary

ObjectQueue()

Method Summary

int	getSize()
boolean	isEmpty()
java.lang.Object	poll(int a_msTimeout) Pools the queue for an object to become available until timeout is reached.
java.lang.Object	pop() Get an object from the queue.
void	push(java.lang.Object a_object) Put an object into the queue
java.lang.Object	take() Takes the head of the queue.

Methods inherited from class java.lang.Object

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

Field Detail

m_head

private ObjectQueue.QueueItem m_head

m_foot

private ObjectQueue.QueueItem m_foot

m_size

private int m_size

Constructor Detail

ObjectQueue

public ObjectQueue()

Method Detail

getSize

public int getSize()

push

public void push(java.lang.Object a_object)

Put an object into the queue

pop

public java.lang.Object pop()

Get an object from the queue. If the queue is empty returns null

take

public java.lang.Object take()
                      throws java.lang.InterruptedException

Takes the head of the queue. Waits until an element is in the queue if necessary

Throws:

java.lang.InterruptedException

poll

public java.lang.Object poll(int a_msTimeout)
                      throws java.lang.InterruptedException

Pools the queue for an object to become available until timeout is reached. returns null if timneout was reached

Throws:

java.lang.InterruptedException

isEmpty

public boolean isEmpty()