org.zkoss.zkex.zul.impl
Class OperationQueue

java.lang.Object
  org.zkoss.zkex.zul.impl.OperationQueue

public class OperationQueue
extends java.lang.Object

A queue for storing Operation and is thread-safe. This class is for model sharer developer only, you rarely need to use this class.

Available in ZK PE and ZK EE.

Since:

3.0.0

Author:

Dennis.Chen

Constructor Summary

OperationQueue()

Method Summary

void	addListener(OperationQueueListener listener) Add a listener to this queue
Operation	element() Get an operation from queue, doesn't remove it.
boolean	hasElement() Check is there any operation in queue.
Operation	next() Get an operation from queue, and then remove it.
void	put(Operation op) Put an operation to queue
void	remove() Remove the first operation in queue if exist.
void	removeListener(OperationQueueListener listener) Remove a listener to this queue.

Methods inherited from class java.lang.Object

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

Constructor Detail

OperationQueue

public OperationQueue()

Method Detail

addListener

public void addListener(OperationQueueListener listener)

Add a listener to this queue

removeListener

public void removeListener(OperationQueueListener listener)

Remove a listener to this queue.

put

public void put(Operation op)

Put an operation to queue

Parameters:

op - the operation.

element

public Operation element()

Get an operation from queue, doesn't remove it.

Returns:

the first operation in queue, null if not such operation.

hasElement

public boolean hasElement()

Check is there any operation in queue.

Returns:

true if there exist any operation in queue.

next

public Operation next()

Get an operation from queue, and then remove it.

Returns:

the first operation in queue, null if not such operation.

remove

public void remove()

Remove the first operation in queue if exist.