multiform.java

webwork source

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

import webwork.action.ActionSupport;
import webwork.action.ParameterAware;
import webwork.util.BeanUtil;

import java.util.Map;

/**
 *	A form which has two data objects.
 *      
 *	@see <related>
 *	@author Rickard 謆erg (<email>)
 *	@version $Revision: 1.4 $
 */
public class MultiForm
   extends ActionSupport
   implements ParameterAware
{
   // Constants -----------------------------------------------------
    
   // Attributes ----------------------------------------------------
   Foo foo = new Foo();
   Bar bar = new Bar();
   
   Map parameters;
    
   // Static --------------------------------------------------------
   
   // Constructors --------------------------------------------------
   
   // Public --------------------------------------------------------
   public Foo getFoo()
   {
      return foo;
   }

   public Bar getBar()
   {
      return bar;
   }
      
   // ParameterAware implementation ---------------------------------
   public void setParameters(Map params)
   {
      parameters = params;
   }
   
   // Action implementation -----------------------------------------
   protected String doExecute()
      throws Exception
   {
      // Get values for the objects
      BeanUtil.setProperties(parameters, foo);
      BeanUtil.setProperties(parameters, bar);
      
      // Validation
      if (foo.getX() < 0)
      {
         addErrorMessage("Foo.X may not be negative");
         foo = new Foo(); // Reset
      }
      if (bar.getY().equals("Bar"))
      {
         addErrorMessage("Bar is not a valid Y");
         bar.setY(""); // Reset
      }
      
      return SUCCESS;
   }
    
   // Private -------------------------------------------------------

   // Inner classes -------------------------------------------------
   public class Foo
   {
      int x = 42;
      public void setX(int x)
      {
         this.x = x;
      }
      
      public int getX()
      {
         return x;
      }
   }

   public class Bar
   {
      String y = "Xyzzy";
      public void setY(String y)
      {
         this.y = y;
      }
      
      public String getY()
      {
         return y;
      }
   }
}