Re: [bv-dev] BV 2.0 - Add constraints?
Hi Gunnar,
Here the procedure to find the result:
1. Quick and dirty
copy this url and rellace the class name in the result page
https://github.com/search?l=&q=javax.validation.constraints.NotNull+l...
2. Step by step
You can go here:
https://github.com/search/advanced
You should search the full class name of the annotation, ex. :
javax.validation.constraints.NotNull
You can set the language to Java. After you execute the query you can
filter only the results in 'Code'.
Like this you can find where an annotation class is imported.
Remarks:
At every execution the result change 5-10%, it's absolutely not scientific
(I don't know how it works their index and search) but you can get an idea
of the usage of some classes.
Cheers,
Marco
On Tue, Aug 23, 2016 at 12:15 PM, Gunnar Morling <gunnar(a)hibernate.org>
wrote:
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(a)me.com>:
> +1
>
> Am 22.08.2016 um 19:37 schrieb Marco Molteni <moltenma(a)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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