I don't think so.

I'd recommend you to make your transactional control in your services and
call them from your pages instead of trying to control it in your view.

Best Regards,

On Tue, Mar 2, 2010 at 1:25 PM, Colin Rogers <[email protected]> wrote:

> All,
>
>
>
> I've got a bit of a newbie Wicket question involving Spring, Hibernate
> and transactions.
>
>
>
> The question that I can't seem to find an answer to;
>
>
>
> Can a view be a created/injected/aop'd like a spring bean so that it
> honours @Transactional methods for hibernate?
>
>
>
> An example;
>
>
>
> public class HomePage extends WebPage {
>
>
>
> @SpringBean // this is working fine
>
> private SessionFactory sessionFactory;
>
>
>
> public HomePage(final PageParameters parameters) {
>
>
>
> this.init();
>
>      }
>
>
>
>      @Transactional // this is not working
>
>      public void init() {
>
>
>
>            Criteria criteria =
> sessionFactory.getCurrentSession().createCriteria(MyEntity.class);
>
>            List<MyEntity> myEntities = criteria.list();
>
>            for( MyEntity myEntity : myEntities ) {
>
>
>
>                  // where subEntities is a lazy collection
>
>                  for( SubEntity subEntity : myEntity.getSubEntities() )
> {
>
>
>
>                        // ...
>
>                  }
>
>            }
>
> }
>
> }
>
>
>
> I've been reading Wicket In Action book, various places on the net and
> of course, emails on the subject on this list and this particular
> tutorial;
>
>
>
> http://wicketinaction.com/2009/06/wicketspringhibernate-configuration/
>
>
>
> And I'm still wondering, is this something that is actually possible? I
> could full understand that it wouldn't be - i.e. that the injector only
> works for Spring injection dependency and not AOP or anything else. So
> you inject your dependencies - and they have transaction support etc.
> But that means I'll be having to force fetching of lazily fetched
> children from outside the views themselves, which is obviously very
> painful. It would be so much easier to have transaction support in the
> view itself and not have to delegate.
>
>
>
> Any help would be greatly appreciated.
>
>
>
> The error message I'm receiving is;
>
>
>
> Caused by: org.hibernate.HibernateException: createCriteria is not valid
> without active transaction
>
>      at
> org.hibernate.context.ThreadLocalSessionContext$TransactionProtectionWra
> pper.invoke(ThreadLocalSessionContext.java:338)
>
>      at $Proxy15.createCriteria(Unknown Source)
>
>      at com.tenthart.tacs.testpres.HomePage.init(HomePage.java:39)
>
>      at com.tenthart.tacs.testpres.HomePage.<init>(HomePage.java:28)
>
>      ... 34 more
>
>
>
> Cheers,
>
> Col
>
>
>
>
>
>
>
>
>
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-- 
/**
* Pedro Sena
* Systems Architect
* Sun Certified Java Programmer
* Sun Certified Web Component Developer
*/

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