StrutsDisplayHelper


1   /**
2    * Copyright (c) 2003 held jointly by the individual authors.            
3    *                                                                          
4    * This library is free software; you can redistribute it and/or modify it    
5    * under the terms of the GNU Lesser General Public License as published      
6    * by the Free Software Foundation; either version 2.1 of the License, or 
7    * (at your option) any later version.                                            
8    *                                                                            
9    * This library is distributed in the hope that it will be useful, but 
10   * WITHOUT ANY WARRANTY; with out even the implied warranty of 
11   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
12   * GNU Lesser General Public License for more details.                                                  
13   *                                                                           
14   * You should have received a copy of the GNU Lesser General Public License   
15   * along with this library;  if not, write to the Free Software Foundation,   
16   * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA.              
17   *                                                                            
18   * > http://www.gnu.org/copyleft/lesser.html                                  
19   * > http://www.opensource.org/licenses/lgpl-license.php
20   */
21  package net.mlw.vlh.web.util;
22  
23  import javax.servlet.jsp.JspException  ;
24  import javax.servlet.jsp.PageContext  ;
25  
26  import org.apache.struts.util.RequestUtils;
27  
28  /** The StrutsDisplayHelper is used to i18n the column headers.  It can be used by
29   *  adding the folloing in the spring config file:
30   * 
31   *  <pre>
32   *    <bean id="myLook" singleton="true" class="net.mlw.vlh.web.ValueListConfigBean">
33   *      <property name="displayHelper">
34   *         <bean class="net.mlw.vlh.web.util.StrutsDisplayHelper" />
35   *      </property>
36   *      ...
37   *    </bean>
38   *  </pre>
39   * 
40   *  This DisplayHelper simply takes the value of the column and looks up the message in
41   *  the default resource bundle.
42   * 
43   *  NOTE: The prefered way to i18n is to use the titleKey attribute and the 
44   *  messageSource defined in the ValueListConfigBean.
45   * 
46   * @author Matthew L. Wilson 
47   * @version $Revision: 1.5 $ $Date: 2005/10/20 16:38:08 $
48   */
49  public class StrutsDisplayHelper implements DisplayHelper
50  {
51     /** @see net.mlw.vlh.web.util.DisplayHelper#help(javax.servlet.jsp.PageContext, java.lang.String)
52      */
53     public String   help(PageContext   pageContext, String   key) throws JspException  
54     {
55        // deprecated since struts 1.2
56        return RequestUtils.message(pageContext, null, null, key);
57     }
58  }
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