Support for JSR-303 Bean Validation

[francis-a]

Although it should be possible to validate any managed bean with Spring directly the following example doesn't seem to work in the current snapshot build.

@GraphQlController
@Validated
class Mutations {
    @MutationMapping
    fun mutate(
        @Argument
        @Valid
        update: Update
    ): Result {
      ....
   }
}

Where Update contains validation constraint annotations such as

data class Update(
   @field:Length(min = 2)
   val name: String?
)

It seems currently an unvalidated data object is passed into the mutate handler.

I haven't dug too deep yet but I think the root cause could be how the Update object is instantiated and passed to the handler method. It could also be a missunderstanding of how this should be working on my end.

Is JSR-303 validation supported in the current snapshot?

[bclozel]

Is that a duplicate of #110 ?

[francis-a]

looks like a duplicate, thanks for the link @bclozel