Cairngorm Code

package sample3
{
   import flash.events.EventDispatcher;

   public class Sample3Model extends EventDispatcher
   {
      private var _lastname : String;
      private var _firstname : String;
      
      [Bindable]
      public var validatorGroup : Sample3ValidatorGroup = 
         new Sample3ValidatorGroup();
      
      public function Sample3Model()
      {
         validatorGroup.model = this;
         validatorGroup.initialized( this, "sample3Model" );
         validatorGroup.validate( true );
      }
      
      public function set firstname( value : String ) : void
      {
         _firstname = value;
         
         dispatchEvent( new Event("firstnameChanged") );
      }
      
      [Bindable(event="firstnameChanged")]
      public function get firstname() : String
      {
         return _firstname;  
      }
      
      public function set lastname( value : String ) : void
      {
         _lastname = value;  
         dispatchEvent( new Event("lastnameChanged") );
      }
      
      [Bindable(event="lastnameChanged")]
      public function get lastname() : String
      {
         return _lastname;
      }
      
      public function get isValid() : Boolean
      {
         return validatorGroup.isValid;
      }
      
   }
}