prepareactionfactoryproxy.java

来自「webwork source」· Java 代码 · 共 49 行

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

import webwork.action.Action;
import webwork.action.PrepareAction;
import java.util.Map;

/**
 * Prepares or initializes an action implementing the {@link PrepareAction}
 * interface after first locating it through the action factory proxy chain.
 *
 * @author Rickard 謆erg ([e-mail])
 * @version $Revision: 1.5 $
 */
public class PrepareActionFactoryProxy
   extends ActionFactoryProxy
{
   // Attributes ----------------------------------------------------
   Map applicationMap;

   // Constructors --------------------------------------------------
   public PrepareActionFactoryProxy(ActionFactory aFactory)
   {
      super(aFactory);
   }

   // ActionFactory implementation -------------------------------
   public Action getActionImpl(String aName)
      throws Exception
   {
      // Get action from factory
      Action action = getNextFactory().getActionImpl(aName);

      // Check if action wants to prepare itself
      if (action instanceof PrepareAction)
      {
         ((PrepareAction)action).prepare();
      }

      // Return action
      return action;
   }
}