[jsr-314-open] Ajax validation

[Andy Schwartz]

Pete, Alex -

Can you elaborate on the consequences of running through the update 
model phase during Ajax validation?  Is the concern that this is just 
unnecessary overhead (ie. is this a performance issue)?  Or are there 
other functional issues that come up?

FWIW, we haven't added such a facility for skipping update model in 
Trinidad/ADF Faces Ajax.  Perhaps we haven't needed this because we 
primarily rely on client-side validation for quick feedback (though of 
course there are cases that client-side validation does not cover.)

Ted -

Just curious - does ICEfaces provide a mechanism for skipping update 
model during Ajax validation?

Andy

Pete Muir wrote:
> Hi all,
>
> I was chatting with Alex Smirnov this week, and he pointed out that an 
> essential feature needed for Ajax validation is missing from the Ajax 
> support in JSF 2.0.
>
> When you are doing Ajax validation, you need an option to not update 
> the backing beans (in other words, skip the update model phase), so 
> that *if the value is valid*, then aren't saved to the model. I think 
> this is sufficiently important enough to go into the JSF maintenance 
> release. The RichFaces syntax is like:
>
> <f:ajax updateModel="false" />
>
> BTW, Ed, any updates on the MR?
>
> Pete