Oh, Struts 1 :)
It might be easier to put a business object into the ActionForm.
There are lots of ways to go about all this, but in general, I did *only*
simple form-based validation on the Struts side of things, whether or not I
had an embedded business object. On the non-form side of things I still had
validation error message keys, sometimes tied to a form field, but generally
not, but any mapping of business-stuff to form-stuff happened in a layer
between Struts and the business stuff.
There are a ton of ways to go about gluing it all together, my only real
rule-of-thumb was that the form validation ("the easy stuff") was handled via
Struts, everything else was handled by a middle layer that took business rule
validation issues and mapped them into things that Struts could comprehend
(ActionErrors, possibly tied to a form property).
It'd be better (from where I sit, anyway) to call business validation rules
from Struts rather than the other way around.
d.
--- CrackheadMillionaire <[EMAIL PROTECTED]> wrote:
> Hi Dave -
>
> Thanks for the quick reply!
>
> Well, I guess my initial thought was, why not find a way to call the form
> bean's validate(mapping, request) method. This would generate a list of
> action errors for me that didn't fit the rules defined in validator.xml; I
> could append any complicated rules I've found that I had violated, and
> return the whole world to either my DispatchAction who could set and
> return, or to my other process who could be made to understand an
> ActionError and act appropriately.
>
> But to do that, my business layer needs to have a mapping and request
> method. If I'm accessing the business layer from outside of the web
> environment, that seems pretty hacky to create and populate a mapping and
> servlet request.
>
> Maybe I'm gonig about this all wrong / missing something big? (sorry)
>
> - cm
>
>
> ----- Original Message ----
> From: Dave Newton <[EMAIL PROTECTED]>
> To: Struts Users Mailing List <[email protected]>
> Sent: Tuesday, December 11, 2007 6:49:33 PM
> Subject: Re: Tying validation into Business Layer
>
> --- CrackheadMillionaire <[EMAIL PROTECTED]> wrote:
> > but I can't see how to expose it to a business layer without mandating it
> > accept some ackward objects that are specific to struts.
>
> What Struts-specific objects do you think you'd need to expose?
>
> d.
>
>
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