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From "James Hillyerd" <ja...@hillyerd.com>
Subject Re: architectural question
Date Fri, 05 Dec 2008 19:41:56 GMT
Look at the bottom of this page:

http://tapestry.apache.org/tapestry5/tapestry-hibernate/userguide.html

It explains how to get @CommitAfter working with DAOs.

-james

On Fri, Dec 5, 2008 at 10:20 AM, Luther Baker <lutherbaker@gmail.com> wrote:

> If I inject a Hibernate session into my DAO and have my Tapestry Controller
> invoke that, is there a Tapestry way that I can tell hibernate to start and
> commit a transaction via annotations or configuration?
>
> IE:
>
> http://tapestry.apache.org/tapestry5/tapestry-core/ref/org/apache/tapestry5/corelib/components/BeanEditForm.html
>
> public class CreateUser
> {
>    @Inject
>    private UserDAO userDAO;
>
> ...
>    Object onSuccess()
>    {
>        userDAO.add(user);
>
>        return UserAdmin.class;
>    }
> }
>
> public class UserDAO
> {
>    @Inject
>    private Session session;
>
>    void add(User user)
>    {
>        session.persist(user);
>    }
> }
>
>
> I tried to use @CommitAfter in my DAO but that didn't work. I essentially
> want to simulate:
>
>    void add(User user)
>    {
>        session.beginTransaction();
>        session.persist(user);
>        sessino.getTransaction().commit();
>    }
>
> but I don't want to explicitly code this in my DAO for fear that I may have
> some instances where the the transactional boundaries must be larger.
>
> Maybe this isn't a Tapestry specific thing - but I'm not sure how to inject
> the Hibernate Session into my DAO but have my Tapestry Controller define
> the
> transactional boundaries ... was hoping some Tapestry annotations might
> help
> me out.
>
> -Luther
>



-- 
James A. Hillyerd <james@hillyerd.com>

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