[jsr-314-open] <h:dataTable> binding vs. ui:repeat

[Dan Allen]

On Fri, Sep 4, 2009 at 2:46 PM, Andy Schwartz <andy.schwartz at oracle.com>wrote:

> Finally read through this thread.


I'm finally returning to it ;) It's been a good volley.

An alternative that I believe we could implement in the JSF layer without
> any changes to the EL spec would be to provdie access to an implicit "event"
> object during event delivery.  The page author would specify:
>
>  #{bb.valueChangeListener(event, myparam)}
>>
>
>
> Where bb.valueChangeListener is bound to:
>
>
>  public void valueChangeListener(ValueChangeEvent ev, String myparam) {}
>>
>
> And the "event" implicit object is set up by JSF to point to the
> ValueChangeEvent (or more generally, to whatever FacesEvent we happen to be
> delivering) just prior to invoking any listeners.
>

Brilliant. This nicely parallels JavaScript's implicit this and event
variable and aligns nicely with the implicit variables we have added for
composite components (developers will be used to it).

-Dan

-- 
Dan Allen
Senior Software Engineer, Red Hat | Author of Seam in Action
Registered Linux User #231597

http://mojavelinux.com
http://mojavelinux.com/seaminaction
http://in.relation.to/Bloggers/Dan
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