feat(): validation involving multiple fields

Hi,

I really like the approach YAVI take to simplify the bean validation, but I would like to know how (and if it is possible simply) we can do a “two field validation”

For example:

data class Foo(val min: Int, val max: Int) // very simple model, can happen on more than two fields with more than one type

I would like to be valid only if min is smaller than max. I don’t find anything about it in the current API which is very annoying for me because a huge part of my business domain has this kind of (form) validation on our class.

I find a solution by transforming the value to Map then doing the validation on each value… but it’s not very efficient (putting into a map and then extracting it)

Thanks for your help

[davinkevin]

I don’t know if it’s simply possible, but I propose something like this (the name of the method can be changed, I don’t have enough imagination 😊)

var validator = Validator.builder(Foo::class.java)
        .constraintGlobal({ foo: Foo -> foo.max > foo.min }, "max", ViolationMessage.of("max.range", "'max' must be greater than 'min'")) })
        .build()

I don’t know if all the parameters are required here (especially the max), but if not, we can remove it.

[making]

will be released in 0.20.0 I really appreciate your feedback