Struts-Tiles Design question

[Dilip Ladhani <di...@hotmail.com>]

I have an application built on struts and tiles. I have a design question 
and would like some of your valuable opinions.

I have a huge jsp, which is broken into many includes, say abc.jsp and 
includes one.jsp, two.jsp etc.
As, I mentioned I use tiles so in the config file, I have a forward element, 
which is like this
<forward name="abc" path="abc" contextRelative="true"/>

The "abc" is defined in the tiles as
<put name="body-content" value="/abc.jsp" />

Now for the design question...
I am going to have to switch the includes (one.jsp, two.jsp etc) based on 
some business rules like the geographical area, app type etc.

1) Should I just put this logic in the jsp (using if statements like :if 
apptype = "A" use one.jsp else use one-next.jsp etc) or
2)Should I use tiles by having different action mappings based on different 
business parameters(say app type) and have each mapping forward to a 
different "forward" defined in tiles-def.

Also the business parameters (based on which jsp is selected) may change in 
the future.

Thanks for your input



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Re: Struts-Tiles Design question

[Greg Reddin <gr...@fnf.com>]

On Aug 25, 2005, at 3:15 PM, Dilip Ladhani wrote:

> I have an application built on struts and tiles. I have a design 
> question and would like some of your valuable opinions.
>
> I have a huge jsp, which is broken into many includes, say abc.jsp and 
> includes one.jsp, two.jsp etc.
> As, I mentioned I use tiles so in the config file, I have a forward 
> element, which is like this
> <forward name="abc" path="abc" contextRelative="true"/>
>
> The "abc" is defined in the tiles as
> <put name="body-content" value="/abc.jsp" />
>
> Now for the design question...
> I am going to have to switch the includes (one.jsp, two.jsp etc) based 
> on some business rules like the geographical area, app type etc.
>
> 1) Should I just put this logic in the jsp (using if statements like 
> :if apptype = "A" use one.jsp else use one-next.jsp etc) or

You should probably stay away from this if possible.

Have you looked at the Tiles Controller interface?  You might be able 
to put your business logic in a controller class.  The ComponentContext 
is passed into the controller and you can set attribute values, etc.

Greg


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Re: Struts-Tiles Design question

[Michael Rasmussen <ra...@gmail.com>]

Dilip,
The tiles controller sounds like an interesting way to do it, but I
have never used it.  I agree with Nels that you should stay away from
a JSP implementation of this.  I have stretched tiles pretty far as to
what it can do conditionally, and I have been very happy with it.  I
would suggest using an action to make decisions about where to go, and
use tiles templates to put the right fragments in the right places.

Michael

On 8/25/05, Nels Overgaard-Cook <ne...@gmail.com> wrote:
> If you put the business logic in the JSPs, then it seems to me that you're
> essentially mixing the business and presentation layers. I would put the
> business login in an action and figure out which tile to forward to from
> there. Of course, I haven't used the Tiles Controller that Greg suggested...
> 
> Nels
> 
> On 8/25/05, Dilip Ladhani <di...@hotmail.com> wrote:
> >
> > I have an application built on struts and tiles. I have a design question
> > and would like some of your valuable opinions.
> >
> > I have a huge jsp, which is broken into many includes, say abc.jsp and
> > includes one.jsp, two.jsp etc.
> > As, I mentioned I use tiles so in the config file, I have a forward
> > element,
> > which is like this
> > <forward name="abc" path="abc" contextRelative="true"/>
> >
> > The "abc" is defined in the tiles as
> > <put name="body-content" value="/abc.jsp" />
> >
> > Now for the design question...
> > I am going to have to switch the includes (one.jsp, two.jsp etc) based on
> > some business rules like the geographical area, app type etc.
> >
> > 1) Should I just put this logic in the jsp (using if statements like :if
> > apptype = "A" use one.jsp else use one-next.jsp etc) or
> > 2)Should I use tiles by having different action mappings based on
> > different
> > business parameters(say app type) and have each mapping forward to a
> > different "forward" defined in tiles-def.
> >
> > Also the business parameters (based on which jsp is selected) may change
> > in
> > the future.
> >
> > Thanks for your input
> >
> >
> >
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> > To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> > For additional commands, e-mail: user-help@struts.apache.org
> >
> >
> 
>

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Re: Struts-Tiles Design question

[Nels Overgaard-Cook <ne...@gmail.com>]

If you put the business logic in the JSPs, then it seems to me that you're 
essentially mixing the business and presentation layers. I would put the 
business login in an action and figure out which tile to forward to from 
there. Of course, I haven't used the Tiles Controller that Greg suggested...

Nels

On 8/25/05, Dilip Ladhani <di...@hotmail.com> wrote:
> 
> I have an application built on struts and tiles. I have a design question
> and would like some of your valuable opinions.
> 
> I have a huge jsp, which is broken into many includes, say abc.jsp and
> includes one.jsp, two.jsp etc.
> As, I mentioned I use tiles so in the config file, I have a forward 
> element,
> which is like this
> <forward name="abc" path="abc" contextRelative="true"/>
> 
> The "abc" is defined in the tiles as
> <put name="body-content" value="/abc.jsp" />
> 
> Now for the design question...
> I am going to have to switch the includes (one.jsp, two.jsp etc) based on
> some business rules like the geographical area, app type etc.
> 
> 1) Should I just put this logic in the jsp (using if statements like :if
> apptype = "A" use one.jsp else use one-next.jsp etc) or
> 2)Should I use tiles by having different action mappings based on 
> different
> business parameters(say app type) and have each mapping forward to a
> different "forward" defined in tiles-def.
> 
> Also the business parameters (based on which jsp is selected) may change 
> in
> the future.
> 
> Thanks for your input
> 
> 
> 
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>