in fact, you would use the alias bean like this:
<t:panel>
<f:facet name="layout"><t:gridLayout ... ></f:facet>
<t:aliasBean alias="#{foo}" value="#{foo1}" >
<beans:foo />
</t:aliasBean>
<t:aliasBean alias="#{foo}" value="#{foo2}" >
<beans:foo />
</t:aliasBean>
</t:panel>
but in any case, you are right, the JSF expression is not there any
more when you close the t:panel tag.
regards,
Martin
On 8/26/05, Udo Schnurpfeil <[EMAIL PROTECTED]> wrote:
> Hmmm, I worry about this will not solve my problem.
>
> I understand the t:aliasBean to use like this:
>
> page.jsp begin ------------------------------
>
> <t:aliasBean alias="#{foo}" value="#{foo1}" />
> <beans:foo />
>
> <t:aliasBean alias="#{foo}" value="#{foo2}" />
> <beans:foo />
>
> page.jsp end ------------------------------
>
> and use <h:inputText value="#{foo.firstName}" /> in the custom tag.
>
> So far, so good.
> But, I want to use, of course, the tobago layout manager for layouting:
>
> <t:panel>
> <f:facet name="layout"><t:gridLayout ... ></f:facet>
>
> <t:aliasBean alias="#{foo}" value="#{foo1}" />
> <beans:foo />
>
> <t:aliasBean alias="#{foo}" value="#{foo2}" />
> <beans:foo />
> </t:panel>
>
> The layout manager has to know all of its containers children to make an
> appropriate layout. So the panel has rendersChilden=true, and all the
> tags will be parsed before rendering.
>
> In the moment where #{foo.firstname} will be evaluated by the renderer
> (2 times), the value of #{foo} equals #{foo2}, because it will be done
> at the end tag of the panel (</t:panel>).
>
>
> regards
>
> Udo
>
>
> Martin Marinschek wrote:
>
> > Well, there is a way in MyFaces to do so.
> >
> > check out the t:aliasBean!
> >
> > regards,
> >
> > Martin
> >
> > On 8/26/05, Udo Schnurpfeil <[EMAIL PROTECTED]> wrote:
> >
> >>>* The fact that you can use a value binding expression on nearly
> >>> every attribute makes using rt expressions redundant ... you can
> >>> do anything you need with a value binding anyway.
> >>
> >>A very powerful feature in JSP 2.0 are "Custom Tags".
> >>
> >>Having a bean Foo in your application with several instances.
> >>Now you write some code to edit this bean. If you put this code
> >>into a custom tag like
> >>
> >>WEB-INF/tags/beans/foo.tag begin ------------------------------
> >>
> >><%@ attribute name="bean" %>
> >><h:outputLabel value="here comes my bean: " />
> >><h:inputText value="#{${bean}.firstName}" />
> >><h:inputText value="#{${bean}.secondName}" />
> >>
> >>foo.tag end --------------------------------
> >>
> >>you can use this snip many times on your jsp like
> >>
> >>page.jsp begin ------------------------------
> >>
> >><%@ taglib tagdir="/WEB-INF/tags/beans" prefix="beans" %>
> >><beans:foo bean="foo1" />
> >><beans:foo bean="foo2" />
> >><beans:foo bean="foo3" />
> >>
> >>page.jsp end --------------------------------
> >>
> >>Unfortunately this does not work. Because of the rtexpression=false.
> >>
> >>In tobago we decided to enable the feature, to make such things work.
> >>
> >>Is there a way in JSF 1.2 / JSP 2.1 to make such sniplets run without
> >>dublicating code?
> >>
> >>Udo
> >>
> >>
> >>>In JSF 1.2 / JSP 2.1, the concepts are getting unified ... but in the
> >>>mean time (when the JSP container doesn't know what a value binding
> >>>expression is) this was the decision made at the JSF spec level.
> >>>
> >>>
> >>>Craig
> >>>
> >>
> >>
> >
> >
>
> --
> Dipl.-Math. Udo Schnurpfeil - Executive Officer - Atanion GmbH
> Software Development - Bismarckstraße 13 - 26122 Oldenburg - Germany
> phone +49 441 4082310 - mobile +49 174 9784746 - fax +49 441 4082333
> mailto:[EMAIL PROTECTED] - http://www.atanion.com
>
--
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