[jsr-314-open] view actions prototype for your review

[Dan Allen]

On Tue, Jun 2, 2009 at 10:55 AM, Dan Allen <dan.j.allen at gmail.com> wrote:

>
>
> On Tue, Jun 2, 2009 at 3:07 AM, Ken Paulsen <Ken.Paulsen at sun.com> wrote:
>
>> Hi Dan,
>>
>> How is <s:viewAction ... /> different than <f:event /> (besides that it is
>> not generalized)?
>
>
So in specific terms, it is an extension. f:event is sufficient if the
purpose is to perform processing at the start of the request. s:viewAction
(and eventually f:viewAction) is designed for when you have to perform logic
to verify that the view can even be rendered. View-level security is one
example. Another is verifying that preconditions are met. And the key is to
make navigation away from the view an integrated part when it's determined
that the view cannot and should not be rendered.

-Dan

-- 
Dan Allen
Senior Software Engineer, Red Hat | Author of Seam in Action

http://mojavelinux.com
http://mojavelinux.com/seaminaction
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