Hi there,
I am using OJB in a j2ee app running on weblogic. There is one section of
the code that needs to be part of a JTA transaction (database access via the
PB API and also some JMS writes).
I have the following:
1. In OJB.properties:
-
PersistenceBrokerFactoryClass=org.apache.ojb.broker.core.PersistenceBrokerFa
ctorySyncImpl
-
ConnectionFactoryClass=org.apache.ojb.broker.accesslayer.ConnectionFactoryMa
nagedImpl
-
JTATransactionManagerClass=org.apache.ojb.broker.transaction.tm.WeblogicTran
sactionManagerFactory
2. In Weblogic:
- One XA datasource
- One non-XA datasource
3. In repository_database.xml
- Two <jdbc-connection-descriptor>s, one pointing at the XA datasource, the
other pointing at the non-XA datasource
<!-- this connection is used as the default by OJB -->
<jdbc-connection-descriptor
jcd-alias="DataSource"
default-connection="true"
platform="Oracle"
jdbc-level="2.0"
eager-release="false"
batch-mode="false"
useAutoCommit="0"
ignoreAutoCommitExceptions="true"
jndi-datasource-name="java:comp/env/myDataSource"
>
<sequence-manager
className="org.apache.ojb.broker.util.sequence.SequenceManagerNextValImpl">
<attribute attribute-name="autoNaming" attribute-value="true"/>
</sequence-manager>
</jdbc-connection-descriptor>
<!-- This connection uses the XA data source -->
<jdbc-connection-descriptor
jcd-alias="XADataSource"
default-connection="false"
platform="Oracle"
jdbc-level="2.0"
eager-release="false"
batch-mode="false"
useAutoCommit="0"
ignoreAutoCommitExceptions="true"
jndi-datasource-name="java:comp/env/myXADataSource"
>
<sequence-manager
className="org.apache.ojb.broker.util.sequence.SequenceManagerNextValImpl">
<attribute attribute-name="autoNaming" attribute-value="true"/>
</sequence-manager>
</jdbc-connection-descriptor>
What I want to do is have just a _single_ module using the XA PB for it's
transactional operations, while the rest use the default PB. However when I
set my project up as above I get errors whenever I use _any_ broker to do
non-JTA transaction demarcation:
PersistenceBroker broker =
PersistenceBrokerFactory.defaultPersistenceBroker()
broker.beginTransaction();
broker.store(obj);
broker.commitTransaction();
Results in: java.lang.UnsupportedOperationException: In managed environments
only JTA transaction demarcation allowed
Can anyone tell me if it's possible to do what I want, Or am I approaching
this from the wrong angle entirely? I've failed to find anything detailed
about OJB with JTA, so any help would be great.
Thanks,
Colin.
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