Paolo, thanks for you reply. There is nothing really wrong with the JBossTransactionManagerLookup. It´s just a kind of dynamic factory which chooses, which implementation to use. But for this test-case I could also use the JBoss one.
But my problem is not, that hibernate does not work correctly, but I wonder why openEJB uses the plain org.hibernate.Hibernate implementation in one case and in the other case it uses the Hibernate EntityManager (org.hibernate.ejb.HibernatePersistence), although in both cases I defined to use the Hibernate EntityManager in the persistence.xml through the <provider>-tag. So there has to be a strategy how openEJB handles, which implementation to use. I don´t know, if this comes through classpath-resolution or anything else. But it behaves differently and I am trying to understand how it works, to enable the Hibernate EntityManager specifically. I do not want the plain org.hibernate.Hibernate-session to be used. Do you understand what I mean? Thanks Thomas p.spadafora wrote: > > Hi, > I am not sure of your problem. > But I think > <property name="hibernate.hbm2ddl.auto" value="update" /> > > Has the same meaning of > <property name="openjpa.jdbc.SynchronizeMappings" > value="buildSchema(ForeignKeys=true)" /> > > Although, the second one is an openjpa property and should be ignored by > hibernate provider. > > Any particular reason not to use the > org.hibernate.transaction.JBossTransactionManagerLookup class? > > Bye, > > Paolo > > > -----Messaggio originale----- > Da: hamtho [mailto:thamac...@project-team.de] > Inviato: venerdì 6 febbraio 2009 11.14 > A: users@openejb.apache.org > Oggetto: How to enable/disable Hibernate EntityManager > > > Hi, > > I´m still struggling with the EXTENDED Persistence context and > EntityManager. > Maybe it has anything to do, because i use the Hibernate EntityManager. > But I´ve got the strange behaviour, that in one test case - which works > (!!!) - only the Hibernate-Session is loaded while openEJB starts up and > in > the other test case - which does not work - the HibernateEntityManager is > used. > The persistence.xml is identical in both cases. > > <?xml version="1.0" encoding="UTF-8"?> > <persistence xmlns="http://java.sun.com/xml/ns/persistence"; version="1.0"> > <persistence-unit name="IisPU"> > <jta-data-source>gerdaDatabase</jta-data-source> > > <non-jta-data-source>gerdaDatabaseUnmanaged</non-jta-data-source> > <provider>org.hibernate.ejb.HibernatePersistence</provider> > > <properties> > <property name="hibernate.hbm2ddl.auto" value="update" > /> > <property name="openjpa.jdbc.SynchronizeMappings" > value="buildSchema(ForeignKeys=true)" /> > <property name="hibernate.transaction.manager_lookup_class" > value="ch.bmw.service.DynamicTransactionManagerLookup"/> > > </properties> > </persistence-unit> > </persistence> > > Is there any chance to control wheater openEJB should use Hibernate or > HibernateEntityManager or what is the strategy of openEJB to decide which > implementation to load? > > Maybe someone can help > > Thomas > -- > View this message in context: > http://www.nabble.com/How-to-enable-disable-Hibernate-EntityManager-tp21869752p21869752.html > Sent from the OpenEJB User mailing list archive at Nabble.com. > > > > -- View this message in context: http://www.nabble.com/How-to-enable-disable-Hibernate-EntityManager-tp21869752p21872186.html Sent from the OpenEJB User mailing list archive at Nabble.com.
