On Thu, 15 Aug 2002, Joe Cheng wrote:
> Date: Thu, 15 Aug 2002 22:18:36 -0400
> From: Joe Cheng <[EMAIL PROTECTED]>
> Reply-To: Struts Developers List <[EMAIL PROTECTED]>
> To: 'Struts Developers List ' <[EMAIL PROTECTED]>
> Subject: RE: concerns about Struts
>
> >>
> There are a couple of different ways to actually do this, but you've got
> the basic idea. One common approach, for example, is to do the transfer
> from the form bean directly to a DTO or value object that you're going
> to
> send to your persistence tier. If the form bean has a String, and the
> value object has an int, BeanUtils.copyProperties() will do the
> conversion
> for you.
> <<
>
> I've gotta admit, I definitely see value in this approach. I never thought
> of using a class's interface in this way, though I suppose it must be quite
> natural if you're used to dealing with JavaBean-friendly tools. BeanUtils
> is quite a convenient and powerful tool to have at your disposal... though
> would be nice to be able to cleanly extend it to turn any arbitrary String
> (Object?) into any other type, by registering Strategies.
> mybean.setArticle(Article article), anyone?
>
ConvertUtils.register() anyone? :-)
The whole BeanUtils package (and Digester as well) originated in Struts,
so it's not really surprising that they fit our needs pretty nicely.
Craig
> Not sure I buy into it yet, but it's a helluva lot more convincing than
> simply passing around (Request, Response)...
>
> >>
> Somebody *really* doesn't like the command pattern :-).
> <<
>
> You're absolutely right.... At least not when the "commands" in question
> are this heterogenous, and this subject to change, with such a good chance
> of breakage at runtime instead of compile time. (That's not a dig at
> Struts, just an observation about web applications in general.)
>
> Thanks for giving me some good food for thought. I'll get back to you as
> this beanutil stuff sinks in.
>
> -jmc
>
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