Hi Chris,
I thought of pages as "contexts" for the components embedded within them.
So, in one event handler of a component I would like to set some property or
another (in the page object), and the other components in the page, which
are also able to access this property may change their appearance (say, the
.TML would test the property). Maybe I'm on a wrong track, please let me
know :)
thx
Cheers,
janos
2008/4/29 Chris Lewis <[EMAIL PROTECTED]>:
> Janos,
>
> I'm having a hard time understanding a case that a component should know
> in which page it is embedded, so my suggestion probably wasn't a good
> one. Activation contexts aren't meant for components but for pages - you
> should be using component parameters to configure them, and if it's a
> more sophisticated component, probably a service.
>
> chris
>
> János Jarecsni wrote:
> > and how a component can get to know the page in which it is included? I
> > mean, I can't @InjectPage, as the component will be included in many
> kinds
> > of pages.
> >
> > @Kristian: thx for the many ways :) I'll try these, hope that the
> > @Environmental stuff is scalable (I'm trying to bypass session creation
> as
> > much as possible)
> >
> > Is there a doc on the various annotations available?
> >
> > @Michael:
> > Could you include a tiny bit of example? THX!
> >
> > Thx to you all
> > cheers
> > janos
> >
> > 2008/4/29 Chris Lewis <[EMAIL PROTECTED]>:
> >
> >
> >> 5) @InjectPage the page and call the getter
> >>
> >> Kristian Marinkovic wrote:
> >>
> >>> hi janos,
> >>>
> >>> there are several possibilities:
> >>>
> >>> 1) declare a component parameter and pass in the variable
> >>>
> >>> 2) put it in a ASO and inject the ASO in all your components (using
> >>> @ApplicationState)
> >>> the drawback is that any other page or component will be able to
> access
> >>> the ASO
> >>>
> >>> 3) put it into the Environment and read it whereever you need it in
> your
> >>> nested components.
> >>> be careful when you put your object in your environment. if you put it
> >>>
> >> in
> >>
> >>> during the action
> >>> request it will not be able in the render request (because of the page
> >>> redirect).
> >>>
> >>> page:
> >>>
> >>> @Inject Environment env;
> >>>
> >>> @Persist("flash") whateverclass w;
> >>>
> >>> onActivate(w) { this.w= w }
> >>>
> >>> setupRender() { env.push(whateverclass.class,w);}
> >>>
> >>> components:
> >>>
> >>> @Environmental Whateverclass var;
> >>>
> >>> 4) define a service that can take this variable (and saves it
> >>>
> >> appropriatly
> >>
> >>> so it is not
> >>> lost on a redirect:)) and inject your service in the components where
> >>> needed
> >>> to retrieve the value.
> >>>
> >>> maybe there are some more possibilities :)
> >>>
> >>> g,
> >>> kris
> >>>
> >>>
> >>>
> >>>
> >>> "János Jarecsni" <[EMAIL PROTECTED]>
> >>> 29.04.2008 08:15
> >>> Bitte antworten an
> >>> "Tapestry users" <users@tapestry.apache.org>
> >>>
> >>>
> >>> An
> >>> "Tapestry users" <users@tapestry.apache.org>
> >>> Kopie
> >>>
> >>> Thema
> >>> page activation + components
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>> Hi there,
> >>>
> >>> I have an activatable page, in its onActivate(String param) method I
> >>>
> >> save
> >>
> >>> the param to a normal instance variable of the page class (no
> >>> persistence!).
> >>> How can any component embedded within this page access this variable?
> >>>
> >>> the page class:
> >>>
> >>> //...
> >>> private String param;
> >>>
> >>> public void onActivate(String param) {
> >>> this.param = param;
> >>> }
> >>>
> >>>
> >>> public String getParam() {...}
> >>>
> >>>
> >>> Thx in advance!
> >>> Janos
> >>>
> >>>
> >>>
> >>>
> >> --
> >> http://thegodcode.net
> >>
> >>
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> >>
> >>
> >>
>
> --
> http://thegodcode.net
>
>
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