[bv-dev] Javascript export of bean validation rules

[Gerhard Petracek]

hi @ all,

for extracting constraints (e.g. to send (meta-)data, scripts,... to the
client-side), we
introduced ElementDescriptor#ConstraintFinder#unorderedAndMatchingGroups.

some details in view of jsf:
3 years ago we started to brainstorm such an idea for bv+jsf and we came up
with 10 very basic requirements.
however, there are too many different ideas out there how it should work
and each of them isn't trivial (+ has some issues).
since validation via ajax-requests doesn't have most issues we identified
with a client-side approach and it's available in jsf already, we stopped
working on it.

regards,
gerhard



2012/6/28 Michael Isvy <michael.isvy at gmail.com>

>  Hi,
> I was discussing this topic with Emmanuel Bernard by email and Emmanuel
> suggested that we move this conversation to this mailing-list, so here I
> am  :).
>
> The idea would be to propose a javascript export of the bean validation
> rules. In that way, it would become fairly easy to do "true client side
> validation" (that is: validation that does not require access to the server
> side until the form is completely valid, or nearly completely valid).
> Many web technologies such as JSF, Spring MVC, Wicket, Tapestry...
> integrate with JSR 303. Providing such export would be of great help for
> users of those frameworks (or standard in the case of JSF).
>
> Cheers,
>     Michael.
>
>
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>
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