10:59 a.m.
How do you think Java 8 lambda expression support will affect Bean
Validation APIs? I have not thought about it yet but there might be
interesting possibilities.
https://hibernate.onjira.com/browse/BVAL-313
Emmanuel
11:07 a.m.
Given there are no function types for now, I wonder what sort of
impact could it have...
Regards,
Michael
On Mon, Oct 8, 2012 at 8:59 AM, Emmanuel Bernard <emmanuel(a)hibernate.org> wrote:
How do you think Java 8 lambda expression support will affect Bean
Validation APIs? I have not thought about it yet but there might be
interesting possibilities.
https://hibernate.onjira.com/browse/BVAL-313
Emmanuel
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11:15 a.m.
That was my reaction as well, wondering whether anyone else would
propose any ways of augmenting the BV APIs to include
lambda-compatible interfaces.
Matt
On Mon, Oct 8, 2012 at 11:07 AM, Michael Nascimento <misterm(a)gmail.com> wrote:
Given there are no function types for now, I wonder what sort of
impact could it have...
Regards,
Michael
On Mon, Oct 8, 2012 at 8:59 AM, Emmanuel Bernard <emmanuel(a)hibernate.org> wrote:
> How do you think Java 8 lambda expression support will affect Bean
> Validation APIs? I have not thought about it yet but there might be
> interesting possibilities.
>
> https://hibernate.onjira.com/browse/BVAL-313
>
> Emmanuel
> _______________________________________________
> beanvalidation-dev mailing list
> beanvalidation-dev(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/beanvalidation-dev
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12:10 p.m.
Hi,
I'm not sure what's the current state regarding method references in
Java 8. If they're in, we might make use of them for property
validation:
validator.validateProperty(car, Car::getManufacturer);
validator.validateValue(Car::manufacturer, "Morris");
Or if we add one day an API for programmatic constraint definition
(example based on the API in HV):
ConstraintMapping mapping = new ConstraintMapping();
mapping.type( Car.class )
.property( Car::getManufacturer" )
.constraint( NotNull.class )
.constraint( Size.class ).with( Size::min, 2).with( Size::max, 14 );
That's just a quick thought, not sure whether that really works or
makes too much sense, though.
--Gunnar
2012/10/8 Matt Benson <mbenson(a)apache.org>:
That was my reaction as well, wondering whether anyone else would
propose any ways of augmenting the BV APIs to include
lambda-compatible interfaces.
Matt
On Mon, Oct 8, 2012 at 11:07 AM, Michael Nascimento <misterm(a)gmail.com> wrote:
> Given there are no function types for now, I wonder what sort of
> impact could it have...
>
> Regards,
> Michael
>
> On Mon, Oct 8, 2012 at 8:59 AM, Emmanuel Bernard <emmanuel(a)hibernate.org>
wrote:
>> How do you think Java 8 lambda expression support will affect Bean
>> Validation APIs? I have not thought about it yet but there might be
>> interesting possibilities.
>>
>> https://hibernate.onjira.com/browse/BVAL-313
>>
>> Emmanuel
>> _______________________________________________
>> beanvalidation-dev mailing list
>> beanvalidation-dev(a)lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/beanvalidation-dev
> _______________________________________________
> beanvalidation-dev mailing list
> beanvalidation-dev(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/beanvalidation-dev
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2:14 p.m.
Using method references totally make sense. Yes, they are in Java 8. I
don't know what "type" the method references are though; you'll have to
check up on that.
On Mon, Oct 8, 2012 at 12:10 PM, Gunnar Morling <gunnar(a)hibernate.org>wrote:
Hi,
I'm not sure what's the current state regarding method references in
Java 8. If they're in, we might make use of them for property
validation:
validator.validateProperty(car, Car::getManufacturer);
validator.validateValue(Car::manufacturer, "Morris");
Or if we add one day an API for programmatic constraint definition
(example based on the API in HV):
ConstraintMapping mapping = new ConstraintMapping();
mapping.type( Car.class )
.property( Car::getManufacturer" )
.constraint( NotNull.class )
.constraint( Size.class ).with( Size::min, 2).with( Size::max, 14
);
That's just a quick thought, not sure whether that really works or
makes too much sense, though.
--Gunnar
2012/10/8 Matt Benson <mbenson(a)apache.org>:
> That was my reaction as well, wondering whether anyone else would
> propose any ways of augmenting the BV APIs to include
> lambda-compatible interfaces.
>
> Matt
>
> On Mon, Oct 8, 2012 at 11:07 AM, Michael Nascimento <misterm(a)gmail.com>
wrote:
>> Given there are no function types for now, I wonder what sort of
>> impact could it have...
>>
>> Regards,
>> Michael
>>
>> On Mon, Oct 8, 2012 at 8:59 AM, Emmanuel Bernard <
emmanuel(a)hibernate.org> wrote:
>>> How do you think Java 8 lambda expression support will affect Bean
>>> Validation APIs? I have not thought about it yet but there might be
>>> interesting possibilities.
>>>
>>> https://hibernate.onjira.com/browse/BVAL-313
>>>
>>> Emmanuel
>>> _______________________________________________
>>> beanvalidation-dev mailing list
>>> beanvalidation-dev(a)lists.jboss.org
>>> https://lists.jboss.org/mailman/listinfo/beanvalidation-dev
>> _______________________________________________
>> beanvalidation-dev mailing list
>> beanvalidation-dev(a)lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/beanvalidation-dev
> _______________________________________________
> beanvalidation-dev mailing list
> beanvalidation-dev(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/beanvalidation-dev
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8:48 p.m.
I forgot this one in my inbox. There are no method references. Java is
able to provide a conversion from a method reference to a SAM (single
abstract method) type, losing any reflection reference to the original
method in the process. So, no possible benefit, it seems.
Regards,
Michael
On Mon, Oct 8, 2012 at 5:14 PM, Paul Benedict <pbenedict(a)apache.org> wrote:
Using method references totally make sense. Yes, they are in Java 8.
I don't
know what "type" the method references are though; you'll have to check up
on that.
On Mon, Oct 8, 2012 at 12:10 PM, Gunnar Morling <gunnar(a)hibernate.org>
wrote:
>
> Hi,
>
> I'm not sure what's the current state regarding method references in
> Java 8. If they're in, we might make use of them for property
> validation:
>
> validator.validateProperty(car, Car::getManufacturer);
> validator.validateValue(Car::manufacturer, "Morris");
>
> Or if we add one day an API for programmatic constraint definition
> (example based on the API in HV):
>
> ConstraintMapping mapping = new ConstraintMapping();
> mapping.type( Car.class )
> .property( Car::getManufacturer" )
> .constraint( NotNull.class )
> .constraint( Size.class ).with( Size::min, 2).with( Size::max, 14
> );
>
> That's just a quick thought, not sure whether that really works or
> makes too much sense, though.
>
> --Gunnar
>
>
> 2012/10/8 Matt Benson <mbenson(a)apache.org>:
> > That was my reaction as well, wondering whether anyone else would
> > propose any ways of augmenting the BV APIs to include
> > lambda-compatible interfaces.
> >
> > Matt
> >
> > On Mon, Oct 8, 2012 at 11:07 AM, Michael Nascimento <misterm(a)gmail.com>
> > wrote:
> >> Given there are no function types for now, I wonder what sort of
> >> impact could it have...
> >>
> >> Regards,
> >> Michael
> >>
> >> On Mon, Oct 8, 2012 at 8:59 AM, Emmanuel Bernard
> >> <emmanuel(a)hibernate.org> wrote:
> >>> How do you think Java 8 lambda expression support will affect Bean
> >>> Validation APIs? I have not thought about it yet but there might be
> >>> interesting possibilities.
> >>>
> >>> https://hibernate.onjira.com/browse/BVAL-313
> >>>
> >>> Emmanuel
> >>> _______________________________________________
> >>> beanvalidation-dev mailing list
> >>> beanvalidation-dev(a)lists.jboss.org
> >>> https://lists.jboss.org/mailman/listinfo/beanvalidation-dev
> >> _______________________________________________
> >> beanvalidation-dev mailing list
> >> beanvalidation-dev(a)lists.jboss.org
> >> https://lists.jboss.org/mailman/listinfo/beanvalidation-dev
> > _______________________________________________
> > beanvalidation-dev mailing list
> > beanvalidation-dev(a)lists.jboss.org
> > https://lists.jboss.org/mailman/listinfo/beanvalidation-dev
> _______________________________________________
> beanvalidation-dev mailing list
> beanvalidation-dev(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/beanvalidation-dev
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5 comments
5 participants
participants (5)
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Emmanuel Bernard -
Gunnar Morling -
Matt Benson -
Michael Nascimento -
Paul Benedict