[bv-dev] Value extraction open issue #2: per constraint ConstraintsApplyTo?

[Emmanuel Bernard]

> On 13 Jan 2017, at 18:54, Matt Benson <mbenson at apache.org> wrote:
> 
> As I warned, however, defining these might become tedious. It might be helpful to define a mechanism (like that supported by Spring) to map annotation elements:
> 
> @Size
> @ConstraintsApplyTo(WRAPPED_VALUE)
> @Constraint
> public @interface WrappedSize {
> 
>   @MapTo(type=Size.class, attribute="min")
>   int min() default 0;
> 
>   @MapTo(type=Size.class, attribute="max")
>   int max() default Integer.MAX_VALUE;
> 
>   String message() default "";
>   Class<?> groups() default {};
>   Class<? extends Payload>[] payload() default {};
> }
> 
> @Size(1) @WrappedSize(min=3) StringList nicknames;
> 

If you mean something like @MapTo, the spec already has that via @OverridesAttribute
AFAIK we invented it.
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