Advanced Queuing - Oracle

General Features of JMS
acknowledge() - acknowledges message receipt in a nontransacted session
recover() - restarts message delivery in a nontransacted session. In effect, the
series of delivered messages in the session are reset to the point after the last
acknowledged message.
The following are some of the extensions to JMS made by Oracle. The Session
object has to be cast to AQjmsSession to use any of the extensions.
QueueTables and Queues, Topics can be created from the Session object
createQueueTable() - creates a queue table
getQueueTable() - gets a handle to an existing queue table
createQueue() - creates a queue
getQueue() - gets a handle to an existing queue
createTopic() - creates a topic
getTopic() - gets a handle to an existing topic
The following code illustrates how some of the preceding calls are used.
Example Code
public static void bol_example(String ora_sid, String host, int port,
String driver)
{
QueueConnectionFactory qc_fact = null;
QueueConnection q_conn = null;
QueueSession q_sess = null;
AQQueueTableProperty qt_prop = null;
AQQueueTable q_table = null;
AQjmsDestinationProperty dest_prop = null;
Queue queue = null;
BytesMessage bytes_msg = null;
try
{
/* get queue connection factory */
qc_fact = AQjmsFactory.getQueueConnectionFactory(host, ora_sid,
port, driver);
/* create queue connection */
q_conn = qc_fact.createQueueConnection("boluser", "boluser");
Creating Applications Using JMS 12-11