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/**
 *  Copyright 2008 biaoping.yin
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package org.frameworkset.web.servlet;

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

import org.frameworkset.web.servlet.handler.HandlerMeta;

/**
 * Title: HandlerExceptionResolver.java 
 * Description: 
 * bboss workgroup
 * Copyright (c) 2008-2010
 * @Date 2010-10-2
 * @author biaoping.yin
 * @version 1.0
 */
public interface HandlerExceptionResolver {
	
	/**
	 * Try to resolve the given exception that got thrown during on handler execution,
	 * returning a ModelAndView that represents a specific error page if appropriate.
	 * @param request current HTTP request
	 * @param response current HTTP response
	 * @param handler the executed handler, or null if none chosen at the
	 * time of the exception (for example, if multipart resolution failed)
	 * @param ex the exception that got thrown during handler execution
	 * @return a corresponding ModelAndView to forward to, or null for default processing
	 */
	ModelAndView resolveException(
			HttpServletRequest request, HttpServletResponse response, HandlerMeta handler, Exception ex);

}