Does SomeComponent implement PageBeginRenderListener by any chance? I
know we've run across that exact situation where the component couldn't
possibly render within the conditional but since pageBeginRender() gets
called before the page renders, it gets called on all components on the
page regardless of whether or not they are actually rendered.

I'm not sure the exact details about how it figures out what all the
components are on the page, but the pageBeginRender() behavior leads me
to believe there must be something getting evaluated ahead of time.

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] 
Sent: Thursday, June 14, 2007 12:14 AM
To: Tapestry users
Subject: Re: Order in which ognl expressions are evaluated

Thanks!



Independent on what exactly the error is, it is weird that is makes a
difference whether I write:

<condition jwcid="@If" condition="ognl:falseCondition">
         <span jwcid="@SomeComponent"/>
</condition>

or

<condition jwcid="@If" condition="ognl:falseCondition">
</condition>

as the line inside should never be called....unless the ognl expressions
are evaluated prior to rendering....




-------- Original-Nachricht --------
Datum: Wed, 13 Jun 2007 21:37:49 -0400
Von: "Jesse Kuhnert" <[EMAIL PROTECTED]>
An: "Tapestry users" <users@tapestry.apache.org>
Betreff: Re: Order in which ognl expressions are evaluated

> The @If component should prevent any further evaluation of things
within
> it.
> 
> It's impossible to guess at your problem as I have no idea what "an
error
> occurs" means.
> 
> On 6/13/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
> >
> > Hi there!
> >
> > Something really weird is going on....
> >
> > I have created a static method that returns false (
> > getFalseCondition())...
> > inside of the condition is a component.
> >
> > <condition jwcid="@If" condition="ognl:falseCondition">
> >         <span jwcid="@SomeComponent"/>
> > </condition>
> >
> > If the component is rendered, an error occurs - if I leave the
component
> > out, the error does not occur.
> >
> > In that case the error should not occur as the condition is always
> false.
> >
> > Or does Tapestry evaluate ALL ognl expressions before rendering,
> > independent of whether they are needed or not???
> >
> >
> >
> >
> >
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> > To unsubscribe, e-mail: [EMAIL PROTECTED]
> > For additional commands, e-mail: [EMAIL PROTECTED]
> >
> >
> 
> 
> -- 
> Jesse Kuhnert
> Tapestry/Dojo team member/developer
> 
> Open source based consulting work centered around
> dojo/tapestry/tacos/hivemind. http://blog.opencomponentry.com

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