Re: [eclipselink-users] Eclipse RCP - EntityManagerFactory == null

[Christian August Michelsen <chris-m@xxxxxxx>]

Tom Ware skrev:
> Hi Christian,
>
>   I apologize if I have missed this earlier in the thread, but the most 
> common reason the persistence unit cannot be found is that the correct 
> classloader has not been provided at EntityManagerFactory creation 
> time.  We need access to a classloader that can load 
> META-INF/persistence.xml as a resource.
>
>   Here's what we do in the example:
>
>     private EntityManagerFactory getEntityManagerFactory() {
>         if (emf == null) {
>             HashMap properties = new HashMap();
>             properties.put(PersistenceUnitProperties.CLASSLOADER, 
> this.getClass().getClassLoader());
>             emf = new PersistenceProvider().createEntityManagerFactory(
>                     PU_NAME,
>                     properties);
>         }
>         return emf;
>     }

Thanks for replying taking the time to reply :-)
I've actually managed to do this part, and because of it I even got a 
little ouput in the debug part (by putting in more stuff in the 
hashmap). And for some odd reason it no longer complains about not 
finding the persistence bundle, though I havent changed anything. So I'm 
sort of at a loss what do try next. Though trying to implement 
everything once more from scratch would seem like a 'good idea' right 
about now.

But is it a requirement to have the EntityManagerFactory in the same 
bundle as the persistence.xml?

--
Sincerly
Christian Michelsen