Re: EnterSitemapEventListener

[Robin Wyles]

Hi Patrick,






Regards,

Robin

I've been away, so I'm sorry I didn't see this post earlier. I am very busy at the moment, so please also excuse my brief reply! It's been a while since I looked at this, and in fact in the end we went down a radically different route on this project that didn't need this approach. However, before this departure, I'm pretty sure I managed to get all this to work. Attached is the relevant sitemap listener - I hope it's of some use.

HibernateSessionSitemapListener.java
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On 16 Apr 2008, at 17:17, Patrick Heiden wrote:

Is there any documentation available about usage of
EnterSitemapEventListener?

OK, maybe it would be helpfull to state the goals I want to achieve.




1. Open Hibernate Session and bind it to the current thread:

   Session sess = sessionFactory.openSession();
   sess.beginTransaction();

   //Bind the Session to the current thread/transaction
   TransactionSynchronizationManager.
         bindResource(sessionFactory, new SessionHolder(sess));

   //Activate transaction synchronization for the current thread.
   TransactionSynchronizationManager.initSynchronization();



2. render the view









Still right? This is the only way I've seen so far.



Best greetings,
Patrick

--

http://games.entertainment.gmx.net/de/entertainment/games/free

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I read [1] and want/have to implement the OpenSessionInViewFilter/ Interceptor for myself. Unfortunately for me, Robin left no results within his discussion ;) So my basic idea/workflow is somewhat 'straightforward' (see [2], too): Springs TransactionSynchronizationManager comes into play directly, because otherwise calls to getCurrentSession() would throw Exception, because LocalSessionFactory proxies Hibernate SessionFactory (in short: you have to tell what current session- context is). 3. commit the Session and close it (unbind it from the current Thread, too. Code example yould be found at [2]) Hopefully (as Robin stated) this won't breake calls to other sitemaps, but I would guess it wouldn't. Second idea behind that approach (away from Springs OSIV) is to use that as codebase to also implement the long-conversation-pattern and store Hibernates Session inside a users HttpSession. And here I am left with no documentation about the Sitemap- Listeners. E.g. is the HttpSession available, or to be general, wich Objects are available inside those Listeners? I would think, that SitemapEvent.getEnvironment() would always return a HttpEnvironment at runtime, right? If so, the session could be retrieved by ObjectModelHelper.getRequest(sitemapEvent.getEnvironment ().getObjectModel()).getSession() So maybe there is some hidden documentation available for those Listeners, or comments on what I've tried to explain ;) Psst! Geheimtipp: Online Games kostenlos spielen bei den GMX Free Games!

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