James, Thank you very much for that - a working example is exactly what I need! :)
Cheers, Col. -----Original Message----- From: James Carman [mailto:jcar...@carmanconsulting.com] Sent: 02 March 2010 17:59 To: users@wicket.apache.org Subject: Re: [newbie] Wicket, Spring, Hibernate and transactions in views. Introduce AspectJ and spring-aspects into your build. You can see an example of it in my wicket-advanced sample project: http://svn.carmanconsulting.com/public/wicket-advanced/trunk/ Then, AspectJ will weave the transaction support into your Page/Component classes like you want. There are limits on what type of methods can be transactional, though. I would also recommend the OpenSessionInView filter (which my example project also uses). On Tue, Mar 2, 2010 at 11:25 AM, Colin Rogers <coli...@groundsure.com> 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 > > > > > > > > > > Emap delivers intelligence, inspiration and access through publications, > events and data businesses in retail, media, the public sector and the built > environment. www.emap.com. > > The information in or attached to this email is confidential and may be > legally privileged. 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