auecho.java

ZK 基础介绍 功能操作 模块 结合数据库操作

/* AuEcho.java

{{IS_NOTE
	Purpose:
		
	Description:
		
	History:
		Fri Jan 20 23:28:02     2006, Created by tomyeh
}}IS_NOTE

Copyright (C) 2006 Potix Corporation. All Rights Reserved.

{{IS_RIGHT
	This program is distributed under GPL Version 2.0 in the hope that
	it will be useful, but WITHOUT ANY WARRANTY.
}}IS_RIGHT
*/
package org.zkoss.zk.au.out;

import org.zkoss.zk.ui.Desktop;
import org.zkoss.zk.au.AuResponse;

/**
 * A response to ask client to send a dummy request back to the server.
 *
 * <p>It is used by {@link org.zkoss.zk.ui.sys.UiEngine} to solve a special
 * case.
 *
 * <p>data[0]: desktop Id
 * 
 * @author tomyeh
 * @since 3.0.0
 */
public class AuEcho  extends AuResponse {
	/** Contructs an echo response with the specified desktop.
	 *
	 * @param desktop the desktop to send the echo response to.
	 * If null, the echo response is sent to each desktop in the
	 * same browser window.
	 * @since 3.0.0
	 */
	public AuEcho(Desktop desktop) {
		super("echo",  desktop != null ? desktop.getId(): null);
	}
	/** Contructs an echo response for each desktop in the same browser
	 * window
	 */
	public AuEcho() {
		this(null);
	}
}