Damn it. I changed my mind and thought while writing the email. Forget anything after my
signature on the last post.
Your example is what I had in mind indeed.
On 10 janv. 2013, at 10:30, Gunnar Morling <gunnar(a)hibernate.org> wrote:
I've created
https://hibernate.onjira.com/browse/BVAL-357
> I think you should call isReachable and isCascadable for params and return values.
> Of the top of my head I cannot think of a reason why we would need to use
isReachable on a parameter
So do you think isReachable() *is* required or not? Regarding your entity example, did
you mean it like this:
@Entity
public class Customer {}
public class CustomerService {
public void updateCustomer(@RetailCustomer @Valid Customer customer) {
}
}
Then I guess it would indeed make sense to call isReachable() and isCascadable() when
validating the "customer" parameter.
--Gunnar
2013/1/10 Emmanuel Bernard <emmanuel(a)hibernate.org>
> That's an interesting question. I think you should call isReachable and
isCascadable for params and return values.
> Imagine a constraint validating a JPA entity. You don't want it to be validated
if the entity is a proxy. This constraint could access a few of the entity state
properties. And that's before cascading.
>
> isCascadable was a contract added specifically so that the same entity would not be
validated over and over if it happened to be referenced by several other entities in a
dirty persistence context.
>
> Open an issue because we need to clarify all that in the spec.
>
> Emmanuel
>
> Of the top of my head I cannot think of a reason why we would need to use isReachable
on a parameter
>
> On 9 janv. 2013, at 15:42, Gunnar Morling <gunnar(a)hibernate.org> wrote:
>
> > Hi all,
> >
> > working on the TCK, I'm wondering whether a BV provider should use
TraversableResolver#isReachable() and isCascadable()) to check whether a validated method
parameter or return value may be accessed/traversed.
> >
> > I think checking for cascadability might make sense, but I'm not so sure
about checking for reachability; can e.g. be a parameter not reachable?
> >
> > If any of the checks shall be done for method validation, we need to update the
TraversableResolver contract (section 4.6.3) which currently explicitly speaks about
properties and is limited to the element types FIELD and METHOD.
> >
> > WDYT?
> >
> > --Gunnar
> >
> >
> >
> >
> >
> >
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>
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