And one really last thing :) I had a shallow look at wicket to check this
feature... There should be some common unconscious conceptual path here, as
wicket too misses this. All it has is an Include component to include
non-wicket (! :D) content. Why these frameworks are so much reluctant to
this? :)
J
On 16/04/2008, János Jarecsni <[EMAIL PROTECTED]> wrote:
>
> One more thing... although Tapestry is component oriented (which is a
> goood thing :)), this kind of flexibility (dynamic template generation)
> which is available in JSP is an essential feature to be really flexible. A
> templating framework should allow this level of redirection, or abstraction,
> that the templates are dynamically produced driven by runtime conditions or
> configuration. Otherwise we get a very intelligent and elegant HTML (in
> terms of this kind of staticness). Sorry for the lengthy arguing, but I
> think this issue is vital for Tapestry too (not just me :))
>
> Cheers,
> Janos
>
> On 16/04/2008, János Jarecsni <[EMAIL PROTECTED]> wrote:
> >
> > Yes, I felt this too :) However, this is no special usage scenario I
> > would say, just a bit different usage pattern that calls for a different
> > approach. As I see now, the Tapestry framework is well suited to sites,
> > where the user travels from Login to Browse items from there to Shopping
> > cart and so on. This from a.tml to b.tml from b.tml to c.tml.
> >
> > This approach is somewhat clumsy when it comes to a portal-like scenario
> > where there is no longer a "browse items" "page" but rather the user is
> > manipulating components (like clicking on a voter component to show the
> > results or clicking on a "top 10 news" component to load one news into the
> > "workspace area"). Here the notion of a "page" is no longer really
> > meaningful. What you have is a few templates (which specify the layout and
> > design) and you'd like to manipulate (load and manage state of) components
> > dynamically.
> >
> > I hope I could make my approach clear enough :)
> >
> > Cheers,
> > Janos
> >
> > On 16/04/2008, Josh Canfield <[EMAIL PROTECTED]> wrote:
> > >
> > > > My intention is to move away from the page-centric
> > > > approach of Tapestry toward this more dynamic strategy
> > >
> > >
> > > :) I think the statement above says it all. When you try to "move
> > > away" from the core approach of a framework then you're asking for a
> > > challenge.
> > >
> > > If you don't mind sharing, what's your usecase? Why won't configurable
> > > components suite your need? Are you wanting to pull portions of the
> > > templates from a database?
> > >
> > > Josh
> > >
> > > On Tue, Apr 15, 2008 at 1:43 PM, János Jarecsni
> > >
> > > <[EMAIL PROTECTED]> wrote:
> > > > Hi Josh,
> > > >
> > > > hm, this would be a pity... it is relatively easy to imagine a
> > > scenario
> > > > where the component should be "lately bound", I mean resolved only
> > > at
> > > > runtime. I can imagine generic TMLs which only specify placeholders
> > > for
> > > > components, and it depends on some configuration what components to
> > > link
> > > > into those placeholders. My intention is to move away from the
> > > page-centric
> > > > approach of Tapestry toward this more dynamic strategy, where the
> > > page tml
> > > > works as a generic template. Hope this is possible somehow... In the
> > > worst
> > > > case I will compile the TML on the fly using JSP and then forward to
> > > > Tapestry? Uh hah :)
> > > >
> > > > Thanks for the reply!
> > > > Janos
> > > >
> > > >
> > > > On 15/04/2008, Josh Canfield <[EMAIL PROTECTED]> wrote:
> > > > >
> > > > > Tapestry wants to know about all the components that a page is
> > > going
> > > > > to render up front. If you want to dynamcially include a component
> > > > > you'll have to include that component in the template somewhere so
> > > > > that you can get a handle to it.
> > > > >
> > > > > For instance, you can have a component that has:
> > > > >
> > > > > <t:delegate to="footerBlock"/>
> > > > >
> > > > > <t:block id="footerWhite">
> > > > > <t:myWhiteFooter/>
> > > > > </t:block>
> > > > >
> > > > > <t:block id="footerRed">
> > > > > <t:myRedFooter/>
> > > > > </t:block>
> > > > >
> > > > > then in your component class you can implement
> > > > >
> > > > > @Parameter
> > > > > private String _color;
> > > > >
> > > > > @Inject
> > > > > private Block footerWhite;
> > > > >
> > > > > @Inject
> > > > > private Block footerRed;
> > > > >
> > > > > Block getFooterBlock() {
> > > > > if ( _color.equals("white") ) {
> > > > > return footerWhite;
> > > > > } else {
> > > > > return footerRed;
> > > > > }
> > > > >
> > > > > I'm don't know of a way to iterate over all the blocks contained
> > > in a
> > > > > component...
> > > > >
> > > > > Josh
> > > > >
> > > > > On Tue, Apr 15, 2008 at 1:10 PM, János Jarecsni
> > > > >
> > > > > <[EMAIL PROTECTED]> wrote:
> > > > >
> > > > > > Hi again,
> > > > > >
> > > > > > is there a way for a little bit more dynamic inclusion of a
> > > component?
> > > > > >
> > > > > > Say instead of <t:footer/> I'd like to iterate through a
> > > registry of
> > > > > > components and include some of them in a page, like:
> > > > > >
> > > > > > <t:include-component t:id="someValue"/> (someValue is not a
> > > literal).
> > > > > >
> > > > > > It would be vital for what I'm up to :)
> > > > > >
> > > > > >
> > > > > > Thanks again
> > > > > > Janos
> > > > > >
> > > > > >
> > > > > > On 14/04/2008, Michael Gerzabek <[EMAIL PROTECTED]>
> > > wrote:
> > > > > > >
> > > > > > > Then I was to fast too! ;-)
> > > > > > >
> > > > > > > Michael Gerzabek schrieb:
> > > > > > >
> > > > > > > > Hi Janos,
> > > > > > > >
> > > > > > > > Could you elaborate a little bit more on what you wanna do?
> > > > > > > >
> > > > > > > > Have a look at the basic principles of T5 [1], especially
> > > Principle
> > > > > #1
> > > > > > > > might be of interest for you.
> > > > > > > >
> > > > > > > > Maybe you are just looking on how create dynamic layouts
> > > then go to
> > > > > the
> > > > > > > > mailing list with keywords dynamic and static [2].
> > > > > > > >
> > > > > > > > Not sure this helps,
> > > > > > > > Michael
> > > > > > > >
> > > > > > > > [1] http://tapestry.apache.org/tapestry5/
> > > > > > > > [2]
> > > > > > > >
> > > > >
> > > http://www.nabble.com/forum/Search.jtp?query=T5+static+dynamic&local=y&forum=340&daterange=0&startdate=&enddate=
> > > > > > > >
> > > > > > > >
> > > > > > > > János Jarecsni schrieb:
> > > > > > > >
> > > > > > > > > Hi All,
> > > > > > > > >
> > > > > > > > > I'm new to Tapestry technology and to this mailing list,
> > > and I
> > > > > have a
> > > > > > > > > question. I'd like to "dynamically" create .TMLs... So
> > > instead of
> > > > > > > > > having
> > > > > > > > > static pages (Start.tml, Login.tml), I'd like to construct
> > > > > Tapestry
> > > > > > > > > pages on
> > > > > > > > > the fly (by including page parts, which are other .tmls).
> > > I've
> > > > > been
> > > > > > > > > looking
> > > > > > > > > for some "include" component whatsoever, but found
> > > nothing. Except
> > > > > for
> > > > > > > > > the
> > > > > > > > > PageLayout component, which does something similar, just
> > > the other
> > > > > way
> > > > > > > > > around. Could you point me to some workaround or existing
> > > > > solution?
> > > > > > > > >
> > > > > > > > > Cheers
> > > > > > > > > Janos
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
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