> At first someone knows a solution for that problem (workaround)? Does this comment from the JIRA apply to your situation? : Forgot to mention that one work around we found for this problem is that if both Lower entities use LAZY fetches in stead of EAGER fetches, then the exception won't be thrown.
hth, Rick On Thu, Sep 9, 2010 at 7:43 AM, mpf <[email protected]> wrote: > > I am using a WAS7 with a DB2 and I want to change the persistence provider > from openjpa 1.2.2 (provided with WAS7) to hibernate 3.3.2.GA (the last > JPA > 1.0 implementation?). > The reason is following: > > https://issues.apache.org/jira/browse/OPENJPA-1508?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel > > https://issues.apache.org/jira/browse/OPENJPA-1508?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel > > At first someone knows a solution for that problem (workaround)? > Otherwise I need an alternative provider like Hibernate. > > Someone made experience with changing the WAS7 persistence provider? > > I tried it out and get following exception: > > Caused by: javax.ejb.EJBTransactionRolledbackException: nested exception > is: > javax.ejb.EJBException: Injection failure; nested exception is: > java.lang.IllegalStateException: EntityManagerFactory has not been created > for PU : PuId=ZWREar#ZWRService.jar#zwr+ > Caused by: javax.ejb.EJBException: Injection failure; nested exception is: > java.lang.IllegalStateException: EntityManagerFactory has not been created > for PU : PuId=ZWREar#ZWRService.jar#zwr+ > Caused by: java.lang.IllegalStateException: EntityManagerFactory has not > been created for PU : PuId=ZWREar#ZWRService.jar#zwr > at > > com.ibm.ws.jpa.management.JPAPUnitInfo.getEntityManagerFactory(JPAPUnitInfo.java:1352) > > I can't make head or tail of it: > http://publib.boulder.ibm.com/infocente ... party.html > http://www.ibm.com/developerworks/websp ... #hibernate > > My persistence.xml: > > <?xml version="1.0" encoding="UTF-8"?> > <persistence version="1.0" > xmlns="http://java.sun.com/xml/ns/persistence"; > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; > xsi:schemaLocation="http://java.sun.com/xml/ns/persistence > http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd";> > <persistence-unit name="asdf" transaction-type="JTA"> > <provider>org.hibernate.ejb.HibernatePersistence</provider> > <jta-data-source>jdbc/asdf</jta-data-source> > <class>at.gv.domain.impl.ClassA</class> > <class>at.gv.domain.impl.ClassB</class> > <properties> > <property name="hibernate.dialect" > value="org.hibernate.dialect.DB2Dialect" /> > <property name="hibernate.show_sql" value="true" /> > <property name="hibernate.format_sql" value="true" /> > <property name="hibernate.connection.datasource" value=" > java:/comp/env/jdbc/asdf" /> > <property name="hibernate.transaction.factory_class" > value="org.hibernate.transaction.CMTTransactionFactory" /> > <property name="hibernate.transaction.manager_lookup_class" > > value="org.hibernate.transaction.WebSphereExtendedJTATransactionLookup" /> > </properties> > </persistence-unit> > </persistence> > > Could someone tell me what I have to do that an alternative persistence > provider works?
