Why is there such limitation? From programming API, it just overrides the
property declared in persistence.xml. For BEAN management type, do we need to
implement any transation related methods? We use JBoss 5.1.0 GA.
Thanks for help.
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We tried, but got exception:
08:17:58,204 ERROR [STDERR] javax.persistence.PersistenceException:
[PersistenceUnit: defaultDataSource] Unable to build EntityManagerFactory
08:17:58,205 ERROR [STDERR] at
org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:677)
Unfortunately, you cannot use a JTA datasource unless you get the entity
managers by injection, so you cannot use the jta-data-source element and you
have to set the javax.persistence.nonJtaDataSource property in the map.
Also, if you are using EJBs, you have to add the
Thanks for help.
If one peristence unit is mapped to many data sources(with same tables), is
there any problems with Hibernate caching?
We tried the following in a stateless session bean:
Map configOverrides = new HashMap();
EntityManagerFacotry emf =
From debugging, the issue seems to be in method:
PersistenceUnitDeployment.start();
which is in the jar jboss-jpa-deployer.jar.
Where can I find the source code for the jar? I could not find it under
http://anonsvn.jboss.org/repos/
Thanks!
View the original post :
the previous message is for deploy phase. I was wrong. From further debug,
the exception is thrown in SessionFactoryImp.java
throw new HibernateException(The chosen transaction strategy requires access
to the JTA TransactionManager);
if ( settings.getTransactionManagerLookup()!=null ) {
I have the same problem as you. I need to use different databases with the same
tables in the same application (the difference is that for me is that
redeploying or even restarting JBoss is permitted, but in this case, it doesn't
matter).
The idea is to use the same persistence unit changing
The only solution that I've found is to create the Entity Managers (and
factories) through the Persistence.createEntityManagerFactory method passing it
a Map with the JNDI direction of the new datasource. You can also pass the
datasource connection information by hibernate properties in the
Thanks for help.
Is the persistence unit name required to be defined in a persistence.xml?
what is the property name for data source in the map?
Thanks!
Dave
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