Re: [Informa-developer] Problem with MySQL/Hibernate

[Aleksey G. <spy...@no...>]

Hi Jakub,

This issue was already raised on the list in the past. Here's what I
wrote:

---
By the way, the problem with deserialization exception (see "Re:
[Informa-developer] Hibernate lazy initialization exception" thread
started by Nick Groupinets) was related to the serialized links of
items. The problem was that in database items' links appeared as empty
strings (not NULL's) and consequentially could not be deserialized into
valid java.net.URL objects on loading. 

It's not quite clear how they got into database yet. If you have any
info on this please let the developers know.
---

Hope it will help.

Aleksey Gureev
BlogBridge Team
http://www.blogbridge.com/


On Thu, 2005-05-05 at 15:24 +0200, Jakub Hozak wrote:
> Greetings
> 
> I am using MySQL as a backend for Hibernate (Informa) and
> testing really simple function. It just grabs some channel,
> saves it by using the PersistenceManager and does the very
> same thing it's items (using poller and PersistenceObserver).
> And it works. BUT ... when I try to load the channel using
> following hibernate code (I am a hibernate newbie ... correct
> me if I am doing performing kind of stupidity here)
> 
> 		try {
> 			SessionHandler handler = SessionHandler.getInstance();
> 			Session session = handler.getSession();
> 			channel = (ChannelIF) 	session.load(Channel.class, id);
> 			session.close();
> 		} catch (HibernateException he) {
> 			logger.warn("Failed to load channel with ID " + id);
> 			throw he;
> 		}
> 
> it dies with following error message:
> 
> 4859 [main] DEBUG net.sf.hibernate.impl.SessionFactoryObjectFactory  - 
> initializing class SessionFactoryObjectFactory
> 4875 [main] DEBUG net.sf.hibernate.impl.SessionFactoryObjectFactory  - 
> registered: 8a80809b03ad05a70103ad05aea50000 (unnamed)