DO NOT REPLY [Bug 4856] - Make ActionForm an Interface

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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=4856

Make ActionForm an Interface

husted@apache.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |WONTFIX



------- Additional Comments From husted@apache.org  2001-11-13 18:49 -------
ActionForm was originally an interface, but after careful deliberation, it was 
changed to an abstract class.

For more see, 

http://www.mail-archive.com/struts-user@jakarta.apache.org/msg08070.html

and 

http://www.husted.com/struts/FAQ/controller-ejb.htm

A *very* important aspect of the ActionForm is that it is a firewall between 
HTTP and your business logic beans. The ActionForms objects give you the chance 
to validate (and reject) data before handing it off to your business logic 
beans. It also prevents other properties on your business logic beans from being 
populated inadvertently. Every public property (including nested properties) on 
an ActionForm bean can be populated from a HTTP request, which could include 
properties you did not intend to expose. 

-Ted.

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