I'm using templates that provide bean access, not JSP, but I find I'm
doing what Chris is -- there are the real business objects that are
beans, then there are Displayed<thing> beans that handle presentation
issues. They don't do HTML generation but things like getting a menu of
objects filtered according to some criterion, remembering session
state, and so on. They also handle POSTs, so state maintenance and
actions are in a single class. Where to put new methods is not a black
and white issue, but overall the approach keeps things quite clean.
In other words, JSP-specific beans are not necessarily a bad or impure
thing -- they can serve to keep business logic completely free
of irrelevant concerns.
Rod McChesney, Korobora
Christopher Cobb wrote:
>
> Drew Cox wrote:
>
> > ...
> > I firmly believe your "model" classes should not be tied to a particular
> > presentation format (JSP, GUI, ??). But remember, this is just a class,
> > not a bean. This "model" class can be composited into, or inherited
> > from, in a JSP-aware bean that handles creating a HTML-(XML) based view
> > of that model.
>
> I usually ended up having two beans:
>
> * a "pure" bean which had zero knowledge of presentation issues (and is often
>closely bound to a database entity), and
> * a derived bean which had presentation support for a particular context.
>
> The base bean is really a bean, because it has properties related to its underlying
>database entity.
>
> The derived bean uses the properties but adds presentation support.
>
> My point is that what you are calling "just a class, not a bean", I find definitely
>*should* be a bean, but a "pure" bean, not a "JSP bean".
>
> cc
>
> ------------------------------------------------------------------------
>
> Christopher Cobb <[EMAIL PROTECTED]>
> SW Architect
> Powerhouse Technologies, Inc.
>
> Christopher Cobb
> SW Architect <[EMAIL PROTECTED]>
> Powerhouse Technologies, Inc. HTML Mail
> Cellular: 703-909-7550
> Fax: 703-648-7475
> Work: 703-648-6725
> Additional Information:
> Last Name Cobb
> First Name Christopher
> Version 2.1
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