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Posted to users@wicket.apache.org by Lucio Crusca <lu...@sulweb.org> on 2012/12/21 13:30:11 UTC
JPA annotations
Hello *,
I've started this short thread on the tomEE users ml:
http://markmail.org/message/3asqvvptnkieknq5
The final answer sounds to me like "if you want to use resources injection
through JPA annotations in a wicket application, your best bet is Java-EE-
Inject"
https://github.com/wicketstuff/core/wiki/Java-EE-Inject
which in turn states that:
"With JavaEE Inject you can use in your wicket components three annotations:
@EJB, @PersistenceUnit, @Resource".
What about @Entity, @Table, @Id, @GeneratedValue and friends?
What's the simplest way to use JPA annotations and dependency injection
threreof in a wicket application?
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RE: JPA annotations
Posted by Chris Colman <ch...@stepaheadsoftware.com>.
I thought anything EJB was taken off the menu years ago to stop people
getting very sick - Doctor's orders ;)
>-----Original Message-----
>From: Martin Grigorov [mailto:mgrigorov@apache.org]
>Sent: Friday, 21 December 2012 11:42 PM
>To: users@wicket.apache.org
>Subject: Re: JPA annotations
>
>Hi,
>
>The page cannot be a bean, so it cannot be @Stateless.
>Better create a stateless EJB which has a reference to
@PersistenceUnit:
>
>class MyPage extends WebPage {
>
> @EJB
> private MyBean ejb;
>
> ....
> ejb.store(entity)
>
>}
>
>interface MyBean {
> void store(Entity entity)
>}
>
>@Stateless
>class MyBeanImpl implements MyBean {
> @PersistenceUnit
> private EntityManagerFactory emf;
>
> @Override
> public void store(Entity entity) {
> emf.getEntityManager().persist(entity);
> }
>}
>
>P.S. I haven't used JavaEE since its early days of 1.5 version so
excuse me
>if I don't follow some best practices.
>
>
>On Fri, Dec 21, 2012 at 2:30 PM, Lucio Crusca <lu...@sulweb.org> wrote:
>
>> Hello *,
>>
>> I've started this short thread on the tomEE users ml:
>>
>> http://markmail.org/message/3asqvvptnkieknq5
>>
>> The final answer sounds to me like "if you want to use resources
>injection
>> through JPA annotations in a wicket application, your best bet is
Java-
>EE-
>> Inject"
>>
>> https://github.com/wicketstuff/core/wiki/Java-EE-Inject
>>
>> which in turn states that:
>>
>> "With JavaEE Inject you can use in your wicket components three
>> annotations:
>> @EJB, @PersistenceUnit, @Resource".
>>
>> What about @Entity, @Table, @Id, @GeneratedValue and friends?
>>
>> What's the simplest way to use JPA annotations and dependency
injection
>> threreof in a wicket application?
>>
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>> For additional commands, e-mail: users-help@wicket.apache.org
>>
>>
>
>
>--
>Martin Grigorov
>jWeekend
>Training, Consulting, Development
>http://jWeekend.com <http://jweekend.com/>
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Re: JPA annotations
Posted by Martin Grigorov <mg...@apache.org>.
http://jweekend.co.uk/dev/LegUp
You may need to upgrade dependencies' versions.
On Fri, Dec 21, 2012 at 6:13 PM, Lucio Crusca <lu...@sulweb.org> wrote:
> In data venerdì 21 dicembre 2012 17:01:59, Martin Grigorov ha scritto:
> > Spring Java Config, @Configuration, @Bean
>
> Ok thanks, but there are other things that make me prefer Guice over
> Spring,
> if possible. Is it possible? Can Guice be used to make JPA annotations
> work in
> wicket apps?
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> For additional commands, e-mail: users-help@wicket.apache.org
>
>
--
Martin Grigorov
jWeekend
Training, Consulting, Development
http://jWeekend.com <http://jweekend.com/>
Re: JPA annotations
Posted by Lucio Crusca <lu...@sulweb.org>.
In data venerdì 21 dicembre 2012 17:01:59, Martin Grigorov ha scritto:
> Spring Java Config, @Configuration, @Bean
Ok thanks, but there are other things that make me prefer Guice over Spring,
if possible. Is it possible? Can Guice be used to make JPA annotations work in
wicket apps?
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Re: JPA annotations
Posted by Martin Grigorov <mg...@apache.org>.
Spring Java Config, @Configuration, @Bean
On Fri, Dec 21, 2012 at 5:58 PM, Lucio Crusca <lu...@sulweb.org> wrote:
> In data venerdì 21 dicembre 2012 15:10:11, Martin Grigorov ha scritto:
> >
> > I think Spring is still dominant in this area.
>
> Hmm, I've had a look, too much xml for my taste... what about Guice? Can
> it be
> used as alternative to Spring to have JPA annotations working with Wicket?
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> For additional commands, e-mail: users-help@wicket.apache.org
>
>
--
Martin Grigorov
jWeekend
Training, Consulting, Development
http://jWeekend.com <http://jweekend.com/>
Re: JPA annotations
Posted by Lucio Crusca <lu...@sulweb.org>.
In data venerdì 21 dicembre 2012 15:10:11, Martin Grigorov ha scritto:
>
> I think Spring is still dominant in this area.
Hmm, I've had a look, too much xml for my taste... what about Guice? Can it be
used as alternative to Spring to have JPA annotations working with Wicket?
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Re: JPA annotations
Posted by Martin Grigorov <mg...@apache.org>.
On Fri, Dec 21, 2012 at 4:07 PM, Lucio Crusca <lu...@sulweb.org> wrote:
> In data venerdì 21 dicembre 2012 13:41:36, Martin Grigorov ha scritto:
> > Hi,
> >
> > The page cannot be a bean, so it cannot be @Stateless.
> > Better create a stateless EJB which has a reference to @PersistenceUnit:
>
> Thanks for pointing that out.
>
> > class MyPage extends WebPage {
> >
> > @EJB
> > private MyBean ejb;
> >
> > ....
> > ejb.store(entity)
> >
> > }
> >
> > interface MyBean {
> > void store(Entity entity)
> > }
> >
> > @Stateless
> > class MyBeanImpl implements MyBean {
> > @PersistenceUnit
> > private EntityManagerFactory emf;
> >
> > @Override
> > public void store(Entity entity) {
> > emf.getEntityManager().persist(entity);
> > }
> > }
>
> Ok, but what about Java-EE-Inject? Is that the standard (most widely used)
> way
> to integrate JPA (or hibernate) into wicket applications?
>
>
I think Spring is still dominant in this area.
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> For additional commands, e-mail: users-help@wicket.apache.org
>
>
--
Martin Grigorov
jWeekend
Training, Consulting, Development
http://jWeekend.com <http://jweekend.com/>
Re: JPA annotations
Posted by Lucio Crusca <lu...@sulweb.org>.
In data venerdì 21 dicembre 2012 13:41:36, Martin Grigorov ha scritto:
> Hi,
>
> The page cannot be a bean, so it cannot be @Stateless.
> Better create a stateless EJB which has a reference to @PersistenceUnit:
Thanks for pointing that out.
> class MyPage extends WebPage {
>
> @EJB
> private MyBean ejb;
>
> ....
> ejb.store(entity)
>
> }
>
> interface MyBean {
> void store(Entity entity)
> }
>
> @Stateless
> class MyBeanImpl implements MyBean {
> @PersistenceUnit
> private EntityManagerFactory emf;
>
> @Override
> public void store(Entity entity) {
> emf.getEntityManager().persist(entity);
> }
> }
Ok, but what about Java-EE-Inject? Is that the standard (most widely used) way
to integrate JPA (or hibernate) into wicket applications?
---------------------------------------------------------------------
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Re: JPA annotations
Posted by Martin Grigorov <mg...@apache.org>.
Hi,
The page cannot be a bean, so it cannot be @Stateless.
Better create a stateless EJB which has a reference to @PersistenceUnit:
class MyPage extends WebPage {
@EJB
private MyBean ejb;
....
ejb.store(entity)
}
interface MyBean {
void store(Entity entity)
}
@Stateless
class MyBeanImpl implements MyBean {
@PersistenceUnit
private EntityManagerFactory emf;
@Override
public void store(Entity entity) {
emf.getEntityManager().persist(entity);
}
}
P.S. I haven't used JavaEE since its early days of 1.5 version so excuse me
if I don't follow some best practices.
On Fri, Dec 21, 2012 at 2:30 PM, Lucio Crusca <lu...@sulweb.org> wrote:
> Hello *,
>
> I've started this short thread on the tomEE users ml:
>
> http://markmail.org/message/3asqvvptnkieknq5
>
> The final answer sounds to me like "if you want to use resources injection
> through JPA annotations in a wicket application, your best bet is Java-EE-
> Inject"
>
> https://github.com/wicketstuff/core/wiki/Java-EE-Inject
>
> which in turn states that:
>
> "With JavaEE Inject you can use in your wicket components three
> annotations:
> @EJB, @PersistenceUnit, @Resource".
>
> What about @Entity, @Table, @Id, @GeneratedValue and friends?
>
> What's the simplest way to use JPA annotations and dependency injection
> threreof in a wicket application?
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> For additional commands, e-mail: users-help@wicket.apache.org
>
>
--
Martin Grigorov
jWeekend
Training, Consulting, Development
http://jWeekend.com <http://jweekend.com/>
Re: JPA annotations
Posted by Jochen Mader <pf...@gmail.com>.
I think you should first understand what the different JPA-annotations
actually do.
@Entity, @Table, @Id, @GeneratedValue are annotations used on the
entity level to tell the mapper what to do with properties. These
informations are of no interest to Wicket.
@EJB, @PersistenceUnit, @Resource are annotations used for isntances
injectable by an appropriate container (which can bee CDI, Guice
Spring, ...).
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Re: JPA annotations
Posted by gal <ga...@beyondo.com>.
Hi,
You might want to take a look @ Wicket CDI
<https://www.42lines.net/2011/11/15/integrating-cdi-into-wicket/> which
with a few lines of code you can use @Inject and of course use all the
aforementioned annotations for JPA and using CDI doesn't require Spring.
You might also want to take a look @ Weld
<http://www.seamframework.org/Weld> .
HTH,
Gal.
--
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Re: JPA annotations
Posted by "martin.dilger" <ma...@googlemail.com>.
Hi,
I really don't understand your question.
You want to know how to get jpa-annotations to work.
Well, you just need to get hold of an entitymanager.
If you ask me, go with spring, it's easier than jee or even
Guice.
Regards Martin
--
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Re: JPA annotations
Posted by Ron Smits <ro...@gmail.com>.
check http://jeff-schwartz.blogspot.nl/2011/03/java-ee6-wicket.html its a
good series of articles about using Java EE and wicket
I Haven't Lost My Mind - It's Backed Up On Disk Somewhere
On Fri, Dec 21, 2012 at 1:30 PM, Lucio Crusca <lu...@sulweb.org> wrote:
> Hello *,
>
> I've started this short thread on the tomEE users ml:
>
> http://markmail.org/message/3asqvvptnkieknq5
>
> The final answer sounds to me like "if you want to use resources injection
> through JPA annotations in a wicket application, your best bet is Java-EE-
> Inject"
>
> https://github.com/wicketstuff/core/wiki/Java-EE-Inject
>
> which in turn states that:
>
> "With JavaEE Inject you can use in your wicket components three
> annotations:
> @EJB, @PersistenceUnit, @Resource".
>
> What about @Entity, @Table, @Id, @GeneratedValue and friends?
>
> What's the simplest way to use JPA annotations and dependency injection
> threreof in a wicket application?
>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> For additional commands, e-mail: users-help@wicket.apache.org
>
>