extendlet.java

ZK 基础介绍 功能操作 模块 结合数据库操作

/* Extendlet.java

{{IS_NOTE
	Purpose:
		
	Description:
		
	History:
		Wed Jul  4 15:43:39     2007, Created by tomyeh
}}IS_NOTE

Copyright (C) 2007 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.web.util.resource;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

/**
 * A plugin of {@link ClassWebResource} to process particular
 * content.
 *
 * <p>To add a resource processor to {@link ClassWebResource}, use
 * {@link ClassWebResource#addExtendlet}.
 *
 * @author tomyeh
 * @since 2.4.1
 * @see ClassWebResource#addExtendlet
 */
public interface Extendlet {
	/** Initializes the resouorce processor.
	 */
	public void init(ExtendletConfig config);
	/** Process the specified request.
	 *
	 * @param path the path mapped to this resource processor.
	 * @param extra an additional string to output (to response.getWriter).
	 * Ignored if null.
	 */
	public void service(HttpServletRequest request,
	HttpServletResponse response, String path, String extra)
	throws ServletException, IOException;
}