StaticCodeIncludeLayoutEvent


1   package fr.improve.struts.taglib.layout.event;
2   
3   import javax.servlet.jsp.JspException  ;
4   
5   import fr.improve.struts.taglib.layout.LayoutTag;
6   import fr.improve.struts.taglib.layout.util.ParentFinder;
7   
8   /**
9    * Allow a tag to print static code to be included only once 
10   * even if the current tag is nested in a hidden layer.
11   * 
12   * @author JN Ribette
13   */
14  public class StaticCodeIncludeLayoutEvent extends AbstractLayoutEvent {
15      public StaticCodeIncludeLayoutEvent(LayoutTag in_tag, Object   in_value) {
16          super(in_tag, in_value);    
17      }
18  
19      /**
20       * The tag calling this method should print the Object returned to its pageContext.
21       * @see fr.improve.struts.taglib.layout.event.AbstractLayoutEvent#send()
22       */
23      public Object   send() throws JspException   {
24          return sendToParent(source);
25      }
26      
27      public Object   sendToParent(LayoutTag in_tag) throws JspException   {
28          StaticCodeIncludeListener lc_listener = (StaticCodeIncludeListener) ParentFinder.findLayoutTag(in_tag, StaticCodeIncludeListener.class);
29          if (lc_listener!=null) {
30              return lc_listener.processStaticCodeIncludeEvent(this);
31          } else {
32              return value;
33          }
34      }
35  
36  }
37

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