>I think it could be something about
> missing usage of loadabledetachable model..?
not for me, as the original entity is pulled using an
loadabledetachableModel via a SortedDataProvider :/
if you look around, the all called solution for this is the
"OpenSessionInViewFilter" and the usage of
<bean id="transactionManager"
class="org.springframework.orm.jpa.JpaTransactionManager">
for that (latter one is used by me, too)
However, the OpenSessionInViewFilter will not work with wicket, even if
mapped to "/*" in the web.xml
Best,
Korbinian
Nino Saturnino Martinez Vazquez Wael schrieb:
Hi Korbinian
Im facing the same problems... I also use extended.. So gonna be great
to see the outcome of this thread.. I think it could be something about
missing usage of loadabledetachable model..?
Korbinian Bachl - privat wrote:
Hi,
I'm currently struggling with the famous "lazy load exception" under
spring + jpa with wicket.
The problem is, in my case, that i pull an entity from the database
using a spring-bean (@SpringBean) and JPA (hibernate). Then in the
wicket class i need to walk the entity tree a bit, based on the needs
of the user (preloading wont work, as i dont know the direction the
user wants to walk and the whole entity tree is too complex to grab it
all at once).
If I use the Entity myEntity.getMyOtherConnectedEntity I get the lazy
load exception (transaction already closed). So I tried to use the
OpenSessionInViewFilter to solve this, but it just won't work - no
reason why, as the error stays exactly the same.
Currently I ended up using this:
@PersistenceContext(type = PersistenceContextType.EXTENDED)
private EntityManager em;
However, I'm not sure if this is the way it is supposed to be?
( I read so far that this disables a big part of springs-transaction
handling support but didnt see any impacts so far)
Has anyone a different aproach/ solution for this using wicket +
spring with JPA?
Best,
Korbinan
PS: im on wicket 1.4-m3
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