4-12 Programming JMS for Oracle WebLogic Server
res-sharing-scopeShareableres-sharing-scope resource-ref
resource-env-ref resource-env-ref-namejmsTESTQUEUEresource-env-ref-name
resource-env-ref-typejavax.jms.Queueresource-env-ref-type resource-env-ref
session enterprise-beans
assembly-descriptor container-transaction
method ejb-namePoolTestBeanejb-name
method-namemethod-name method
trans-attributeRequiredtrans-attribute container-transaction
assembly-descriptor ejb-jar
4.6.1.2 weblogic-ejb-jar.xml
This section declares matching resource-description queue connection factory and queue destination elements that tell the Java EE container which JMS connection
factory and destination to put in that location.
DOCweblogic-ejb-jar xmlns=http:www.bea.comnsweblogic920 xmlns:xsi=http:www.w3.org2001XMLSchema-instance
xsi:schemaLocation=http:www.bea.comnsweblogic920 http:www.bea.comnsweblogic920weblogic-ejb-jar.xsd
... weblogic-ejb-jar
weblogic-enterprise-bean ejb-namePoolTestBeanejb-name
stateless-session-descriptor pool
max-beans-in-free-pool8max-beans-in-free-pool initial-beans-in-free-pool2initial-beans-in-free-pool
pool stateless-session-descriptor
resource-description res-ref-namejmsQCFres-ref-name
jndi-nameweblogic.jms.XAConnectionFactoryjndi-name resource-description
resource-env-description res-env-ref-namejmsTESTQUEUEres-env-ref-name
jndi-nameTESTQUEUEjndi-name resource-env-description
jndi-namePoolTestjndi-name weblogic-enterprise-bean
weblogic-ejb-jar
4.6.1.3 PoolTest.java
This section defines the remote interface for the PoolTest bean. It declares one method, called sendXATransactional.
package weblogic.jms.pool.test;
Enhanced Support for Using WebLogic JMS with EJBs and Servlets 4-13
import java.rmi.; import javax.ejb.;
public interface PoolTest extends EJBObject {
public String sendXATransactionalString text throws RemoteException;
}
4.6.1.4 PoolTestHome.java
This section defines the home interface for the PoolTest bean. It is required by the EJB specification.
package weblogic.jms.pool.test; import java.rmi.;
import javax.ejb.; public interface PoolTestHome
extends EJBHome {
PoolTest create throws CreateException, RemoteException;
}
4.6.1.5 PoolTestBean.java
This section defines the actual EJB code. It sends a message whenever the sendXATransactional method is called.
package weblogic.jms.pool.test; import java.lang.reflect.;
import java.rmi.; import javax.ejb.;
import javax.jms.; import javax.naming.;
import javax.transaction.;
public class PoolTestBean extends PoolTestBeanBase
implements SessionBean {
private SessionContext context; private QueueConnectionFactory qcf;
private Queue destination; public void ejbActivate
{ }
public void ejbRemove {
} public void ejbPassivate
{ }
public void setSessionContextSessionContext ctx
4-14 Programming JMS for Oracle WebLogic Server
{ context = ctx;
}
private void lookupJNDIObjects throws NamingException
{ InitialContext ic = new InitialContext;
try { qcf =
QueueConnectionFactoryic.lookup java:compenvjmsQCF;
destination = Queueic.lookupjava:compenvjmsTESTQUEUE;
} finally { ic.close;
} }
public void ejbCreate throws CreateException
{ try {
lookupJNDIObjects; } catch NamingException ne {
throw new CreateExceptionne.toString; }
} public String sendXATransactionalString text
throws RemoteException {
String id = Not sent yet; try {
if qcf == null || destination == null { lookupJNDIObjects;
} QueueConnection connection = qcf.createQueueConnection;
try { QueueSession session = connection.createQueueSession
false, 0; TextMessage message = session.createTextMessage
text; QueueSender sender = session.createSenderdestination;
sender.sendmessage; id = message.getJMSMessageID;
} finally { connection.close;
} } catch Exception e {
Invalidate the JNDI objects if there is a failure this is necessary because the destination object
may become invalid if the destination server has been shut down
qcf = null; destination = null;
throw new RemoteExceptionFailure in EJB: + e; }
return id; }
Enhanced Support for Using WebLogic JMS with EJBs and Servlets 4-15
}
4.6.2 Sending a JMS Message In a Java EE Container
