Referencing page property from component specification

[Waimun Yeow <wa...@dev.java.net>]

Hi folks,

I have a component specification .jwc with a component of type Insert. 
The binding expression needs to reference to a page property value that 
called it. For example, by random, if page A include this component, 
then the Insert component will need to read page A property via ognl 
thru binding expression attribute.

Any hints? Thanks a lot.

--
waimun


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Re: Referencing page property from component specification

[Robert Zeigler <ro...@scazdl.org>]

Hm. Well, this really sounds like a good candidate for a
component-parameter. :)
But... as long as you can guarantee that the property will exist...
you can do something like:

ognl:page.<property>

getPage() returns the containing page.  Note that if you use complex
block/render-block schemes (where the block is placed on one page but
contained within a different page), this can lead to unexpected results
(getPage() will return the page which contains the block, and NOT the
page currently doing the rendering).  Again... /generally/ speaking,
you'd be better off making this a component parameter.

Robert

Waimun Yeow wrote:
> Hi folks,
> 
> I have a component specification .jwc with a component of type Insert.
> The binding expression needs to reference to a page property value that
> called it. For example, by random, if page A include this component,
> then the Insert component will need to read page A property via ognl
> thru binding expression attribute.
> 
> Any hints? Thanks a lot.
> 
> -- 
> waimun
> 
> 
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: tapestry-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: tapestry-user-help@jakarta.apache.org


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