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Advanced Queuing - Oracle

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Creating a Queue Browser for Queues with Text, Stream, Objects, Bytes or Map Messages<br />

Purpose<br />

Create a queue browser for queues with text, stream, objects, bytes or map<br />

messages.<br />

Usage Notes<br />

To retrieve messages that match certain criteria, the selector for the QueueBrowser<br />

can be any expression that has a combination of one or more of the following:<br />

JMSMessageID = ’ID:23452345’ to retrieve messages that have a specified<br />

<br />

message ID<br />

JMS Message header fields or properties:<br />

<br />

JMSPriority < 3 AND JMSCorrelationID = ’Fiction’<br />

User defined message properties:<br />

<br />

color IN (’RED’, BLUE’, ’GREEN’) AND price < 30000<br />

All message IDs must be prefixed with "ID:"<br />

Use methods in java.util.Enumeration to go through list of messages.<br />

Syntax<br />

Java (JDBC): <strong>Oracle</strong>9i Supplied Java Packages Reference oracle.jms,<br />

AQjmsSession.createBrowser<br />

Example<br />

Example1<br />

/* Create a browser without a selector */<br />

QueueSession jms_session;<br />

QueueBrowser browser;<br />

Queue queue;<br />

browser = jms_session.createBrowser(queue);<br />

Example2<br />

/* Create a browser for queues with a specified selector */<br />

QueueSession jms_session;<br />

QueueBrowser browser;<br />

Queue queue;<br />

14-16 <strong>Oracle</strong>9i Application Developer’s Guide - <strong>Advanced</strong> <strong>Queuing</strong>

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