Advanced Queuing - Oracle

General Features of Advanced Queuing
XMLType Queue Payloads
{
Connection db_conn = null;
try
{
Class.forName("oracle.jdbc.driver.OracleDriver");
/* your actual hostname, port number, and SID will
vary from what follows. Here we use 'dlsun736,' '5521,'
and 'test,' respectively: */
db_conn =
DriverManager.getConnection(
"jdbc:oracle:thin:@dlsun736:5521:test",
user, passwd);
System.out.println("JDBC Connection opened ");
db_conn.setAutoCommit(false);
/* Load the Oracle8i AQ driver: */
Class.forName("oracle.AQ.AQOracleDriver");
System.out.println("Successfully loaded AQ driver ");
}
catch (Exception ex)
{
System.out.println("Exception: " + ex);
ex.printStackTrace();
}
return db_conn;
You can create queues with XMLType payloads. These can be used for transmitting
and storing messages that contain XML documents. By defining Oracle objects with
XMLType attributes, you can do the following:
Store more than one type of XML document in the same queue. The documents
are stored internally as CLOBs.
Selectively dequeue messages with XMLType attributes using the operators
XMLType.existsNode(), XMLType.extract(), and so on.
8-14 Oracle9i Application Developer’s Guide - Advanced Queuing