tagutil.java

来自「webwork source」· Java 代码 · 共 38 行

/*
 * WebWork, Web Application Framework
 *
 * Distributable under Apache license.
 * See terms of license at opensource.org
 */
package webwork.view.taglib;

import javax.servlet.jsp.tagext.Tag;

/**
 *  This class contains utility methods that are used by most of the tags.
 *  These methods can also be used by other code that wants to access this
 *  type of functionality, such as Java code in JSP's.
 *
 *  @author Rickard 謆erg ([e-mail])
 *  @version $Revision: 1.1 $
 */
public abstract class TagUtil
{
   // Static --------------------------------------------------------
   public static Tag findTagWithClass(Tag current, Class cl)
   {
      Tag p = current.getParent();
      while(p != null)
      {
         if(cl.isAssignableFrom(p.getClass()))
            return p;

         p = p.getParent();
      }

      return null;
   }
}