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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.view;

import org.frameworkset.spi.InitializingBean;



/**
 * Title: AbstractUrlBasedView.java 
 * Description: 
 * bboss workgroup
 * Copyright (c) 2008
 * @Date 2010-9-28
 * @author biaoping.yin
 * @version 1.0
 */
public abstract class AbstractUrlBasedView  extends AbstractView implements InitializingBean {

	private String url;


	/**
	 * Constructor for use as a bean.
	 */
	protected AbstractUrlBasedView() {
	}

	/**
	 * Create a new AbstractUrlBasedView with the given URL.
	 * @param url the URL to forward to
	 */
	protected AbstractUrlBasedView(String url) {
		this.url = url;
	}


	/**
	 * Set the URL of the resource that this view wraps.
	 * The URL must be appropriate for the concrete View implementation.
	 */
	public void setUrl(String url) {
		this.url = url;
	}

	/**
	 * Return the URL of the resource that this view wraps.
	 */
	public String getUrl() {
		return this.url;
	}

	public void afterPropertiesSet() throws Exception {
		if (isUrlRequired() && getUrl() == null) {
			throw new IllegalArgumentException("Property 'url' is required");
		}
	}

	/**
	 * Return whether the 'url' property is required.
	 * The default implementation returns true