[hibernate-dev] ValidationMode

[Steve Ebersole]

My concern is not the additional option.

My concern is the allowance of multiple selections.  The only combo 
that ever even conceivably makes sense is "ddl" and "callback" 
together.  But I am questioning how sensible it is really to have those 
2 together.  IMHO not much sense at all.

So IMO we ought to be deprecating the ability to have multiple 
selections here.


On Mon 04 Mar 2013 07:21:26 AM CST, Emmanuel Bernard wrote:
> Our impl allow multiple choices to be able to add ddl as an additional
> behavior as it (was) not defined in the spec.
>
> And indeed, auto uses the degraded mode and callback forced BV to be
> used and raise an exception if it is not present. I can see apps deciding
> for one or the other.
>
> Emmanuel
>
> On Fri 2013-02-22 21:38, Hardy Ferentschik wrote:
>>
>> On 22 Jan 2013, at 9:17 PM, Steve Ebersole <steve at hibernate.org> wrote:
>>
>>> Kind of.  What I mean is that the HEM integration code is allowing Set <ValidationMode>.  So our impl allows a value like "auto, ddl" or other combos.  I am not able to grok why we allow multiples.
>>
>> I think this is a Hibernate specific "feature" to support also ddl generation. The idea is to say something like "callback,ddl" to enable validation and application of DDL constraints.
>> Emmanuel might know more. With JPA 2.1 and the DDL stuff part of the spec I would assume there are are other explicit options to enable/disable these features.
>>
>>> Also auto and callback are slightly different.  callback causes an error if no bv provider is available whereas auto then skips validation.
>>
>> Hmm, seems wrong indeed, but maybe that's the difference in the end. Looking at "3.6.1.1 Enabling Automatic Validation" of the spec for the auto mode it is not explicitly mentioned
>> that an exception should be thrown whereas for callback it is. Whether this is international or just badly written I don't know. Maybe something to clarify in the spec.
>> Don't we have someone in the JPA expert group ;-)
>>
>> --Hardy
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