Quick HOW-TO
Setting up:
TopLink 9.0.3/Oracle (8.1.7,9.2,9.0)/Oracle XA
DataSource/JBoss 3.0.4/JDK1.4.1
1. Run initjvm.sql and initxa.sql in the oracle databases
that you will be connecting to with the Oracle XA
DataSources configured in JBoss. They can be
found in $ORACLE_HOME/javavm/install.
2. Get the latest Oracle JDBC Driver from
http://technet.oracle.com. The one I used is the
latest and is named ojdbc14.jar (not classes12.zip).
3. Copy $JBOSS_HOME/docs/examples/jca/
oracle-xa-service.xml to the appropriate
$JBOSS_HOME/server/[all|default|minimal]/deploy
and configure it for your database.
4. Modify $JBOSS_HOME/server/[all|default|minimal]/conf/
jboss-service.xml to include the attribute pad true
for the XidFactory. It should look as follows:
mbean code=org.jboss.tm.XidFactory
name=jboss:service=XidFactory
attribute name=Padtrue/attribute
/mbean
5. In your code to connect up to JNDI using the TopLink
JNDIConnector you will need to lookup and get the
DataSource yourself and pass it in the JNDIConnector
constructor. If you user the a jndi name string
the JNDIConnector will generate a CompositeName, which
results in a InvalidNamingException - not a
CompoundName. It appears that CompositeNames do not
work in JBoss 3.0.4. Here is some sample code:
//jndiProperties are the your properties
Context context = InitialContext(jndiProperties);
javax.sql.DataSource ds =
(javax.sql.DataSource) context.lookup(
java:/XATestDS);
JNDIConnector connector = new JNDIConnector(ds);
login.setConnector(connector);
6. You will need to write code to lookup and get
the JBoss TransactionManager and then use the
TopLink JTSSynchronizationListener to set the
transaction manager so TopLink knows about it.
The following code is an example:
import javax.transaction.TransactionManager;
import oracle.toplink.jts.*;
..
TransactionManager tm =
(TransactionManager)context.lookup(
transactionMgrJndiName);
JTSSynchronizationListener.
setTransactionManager(tm);
7. Finally you need to also set in TopLink the
the external JTS Controller class and let
TopLink know you want to use external
transactions. The generic TopLink class
JTSExternalTransactionController seems to
work so far. An example:
login.useExternalTransactionController();
String jtsControllerClassName =
JTSExternalTransactionController;
Class jtsControllerClass =
Thread .currentThread()
.getContextClassLoader()
.loadClass(
jtsControllerClassName);
ExternalTransactionController jtsController =
(ExternalTransactionController)
jtsControllerClass
.newInstance();
serverSession.setExternalTransactionController(
jtsController);
login.useExternalConnectionPooling();
That does it. Hopefully this helps others who may
struggle as well.
Mike H. Sr.
Michael Huneycutt Sr.
TRC - A perotsystems* Company
Email: [EMAIL PROTECTED]
Office FL: (813) 891-6084 x47395
Office VA: (804) 934-0977
Cell: (804) 304-7655
URL: www.trcinc.com
www.perotsys.com
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