[bv-dev] BV 2.0 - Add constraints?

[Gunnar Morling]

Hi Marco,

Nice research! Out of curiosity, how did you get these numbers?

Historically, the spec stayed on the conservative end in terms of built-in
constraints. @NotEmpty etc. can quite easily be implemented or even just be
composed based on other built-in constraints. But the numbers you shared
indeed indicate some usefulness of adding at least some.

Would be interesting to know what others think?

Cheers,

--Gunnar




2016-08-22 20:32 GMT+02:00 Hendrik Ebbers <hendrik.ebbers at me.com>:

> +1
>
> Am 22.08.2016 um 19:37 schrieb Marco Molteni <moltenma at gmail.com>:
>
> Hi all,
>
> It would be possible to add some built-in constraints to the V 2.0?
>
> @NotBlank, @NotEmpty, @Length are used very often in projects, they are
> already present in Hibernate Validator and their implementation is well
> defined.
>
> What do you think?
>
> Here a list of the most used constraint for GitHub's projects (the numbers
> change at every request but you get the idea. HV = Hibernate Validator,
> BV = Bean Validation):
>
> 189'143 - BV - NotNull
>  56'902 - BV - Size
>  39'551 - HV - NotEmpty <-
>  20'687 - HV - NotBlank <-
>  17'735 - BV - Pattern
>  16'763 - HV - Email
>  16'033 - BV - Min
>  12'769 - HV - Length <-
>   7'806 - BV - Digits
>   4'982 - BV - Max
>   4'971 - BV - Past
>   3'598 - BV - DecimalMin
>   2'753 - BV - AssertTrue
>   2'379 - BV - DecimalMax
>   2'308 - BV - Future
>   1'999 - HV - Range
>   1'497 - HV - URL
> < 1'000 other constraints
>
> Thanks
>
> Cheers
>
> Marco
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