org.eclipse.persistence.sessions.remote.jms.mdb
Class ClusteringMDB
java.lang.Object
org.eclipse.persistence.sessions.remote.jms.mdb.ClusteringMDB
public class ClusteringMDB
- extends java.lang.Object
Purpose: To provide a reference implementation for Message Driven Bean that can listen and process TopLink messages.
Descripton: The Message Driven Bean (MDB) must be deployed along with TopLink application and configured to listener the the same
destination that clustering services send their cache sync messages to. User must defines an environment variable named with the value of
ClusteringMDB.TOPLINK_SESSION_NAME. This environment variable value is session name used by TopLink to load the cosresponding session
from the sessions.xml when the MDB is created.
- See Also:
CacheSynchronizationManager
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
tlMessageListener
protected REMOVE_MessageListener tlMessageListener
TOPLINK_SESSION_NAME
public final java.lang.String TOPLINK_SESSION_NAME
- This value is the env-entry-name element of the Message Driven Beand configured in the ejb-jar.xml.
The value is used to lookup the value of the session's name from the environment variable define in JNDI "java:comp/env".
- See Also:
- Constant Field Values
ClusteringMDB
public ClusteringMDB()
setMessageDrivenContext
public void setMessageDrivenContext(MessageDrivenContext ctx)
ejbCreate
public void ejbCreate()
ejbRemove
public void ejbRemove()
getSession
public Session getSession()
- PUBLIC:
Return the TopLink session that has the session's name configured as an env-entry element in the ejb-jar.xml.
User can subclass and overwrite this method to obtain the session differently.
- Throws:
JMSProcessingException
- if it is unable to lookup the session's name or the session is null
onMessage
public void onMessage(javax.jms.Message message)