The solution i found sofar:
Get the TransactionManagerFactory With this TransactionManagerFactory i
create a Spring JPA Platformtransactionmanager, which gets inserted in a
Camel SpringTransactionPolicy.
<reference id="hibernateEntityManagerFactory"
interface="javax.persistence.EntityManagerFactory"
filter="(osgi.unit.name=pydio2xbound_mssql_persistence_unit)"
availability="mandatory"/>
<reference id="wellspectDaoService"
interface="de.hmm.medit.esb.xbound.pydio2xbound.wellspect.persistence.dao.spi.WellspectDaoService"/>
<bean id="jpaTransactionManager"
class="org.springframework.orm.jpa.JpaTransactionManager">
<property name="entityManagerFactory" ref="hibernateEntityManagerFactory"/>
</bean>
<bean id="jpaPropagationRequired"
class="org.apache.camel.spring.spi.SpringTransactionPolicy">
<property name="transactionManager" ref="jpaTransactionManager"/>
<property name="propagationBehaviorName" value="PROPAGATION_REQUIRED"/>
</bean>
<bean id="daoProcessor"
class="de.hmm.medit.esb.xbound.pydio2xbound.wellspect.aggregation.camel.impl.DaoProcessor">
<property name="entityManagerFactory" ref="hibernateEntityManagerFactory"/>
<property name="wellspectDaoService" ref="wellspectDaoService"/>
</bean>
This setup does createEntityManager(), doBegin() ect. on behalf of the
Camel route.
For persistence in mid route i call the OSGi service method using the in
route created EntityManager:
@Override
public void persistDetectingDuplicatesMSSQL(WellspectAuftragsDatei
wellspectAuftragsDatei, EntityManager entityManager) {
entityManager.persist(wellspectAuftragsDatei);
etc...
Notice i disabled @Transactional to avoid Aries byte weaving this method,
effectively deactivating Aries on this method call.
Extracting the, by this thread created, EntityManager from the
EnityManagerFactory needed some research in Spring and is handled within
the DaoProcessor:
EntityManager entityManager =
EntityManagerFactoryUtils.getTransactionalEntityManager(entityManagerFactory);
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