[hibernate-dev] Hibernate Validator and parametrized types

[Emmanuel Bernard]

That would encourage people to use weaker generics or even worse, raw  
types.
BTW, check out http://code.google.com/p/reflext/ by Julien Viet
It might help in the quest to resolve types simply with the mirror API.

On 8 déc. 09, at 22:29, Gunnar Morling wrote:

> Hi,
>
> I definitely see the usefulness of the feature. It's just that  
> constraint implementors should see clearly, when they are leaving BV  
> spec territory.
>
> How about having the HV annotation processor issue a warning at such  
> advanced validator type definitions?
>
> Gunnar
>
>
>
> 2009/12/8 Emmanuel Bernard <emmanuel at hibernate.org>
> The problem was not so much to implement the feature (which was  
> reasonably easy) but to standardize it which was very time consuming.
>
> Every time you add a switch, you divide the usefulness of a tool by  
> two, so be careful :) It's like the number of mathematic formulas in  
> a book and its correlation with sales numbers ;)
> If you really want a switch, then the default should be to the more  
> advanced algorithm and not the spec.
>
>
> On 8 déc. 09, at 01:01, Gunnar Morling wrote:
>
> Hi,
>
> according to the JSR 303 spec type parameters of constraint  
> validator types
> must not resolve to parametrized types (though the spec mentions such
> validator types might be allowed in future versions). To my  
> understanding
> that means that validators as the following one are invalid with  
> respect to
> the BV spec:
>
> public class SomeValidator implements  
> ConstraintValidator<MyAnnotation,
> List<Integer>> {
>  ...
> }
>
> while the next one is valid:
>
> public class SomeValidator implements  
> ConstraintValidator<MyAnnotation,
> List> {
>  ...
> }
>
> Nevertheless also the first validator seems to work fine with HV. So  
> does HV
> here do something more than defined in the spec? If that's the case, I
> wonder whether there shouldn't be some kind of switch in HV to be  
> activated
> explicitely in order to allow for this working. That way people  
> might use
> that feature but are made aware that other BV implementations might  
> reject
> such validators. WDYT?
>
> Thanks, Gunnar
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