Skip to Main Content
Java Message Service
book

Java Message Service

by David A Chappell, Richard Monson-Haefel
December 2000
Intermediate to advanced content levelIntermediate to advanced
240 pages
6h 9m
English
O'Reilly Media, Inc.
Content preview from Java Message Service

Name

JMSMessageID — Purpose: Routing

Synopsis

The JMSMessageID is a String value that uniquely identifies a message. How unique the identifier is depends on the vendor. It may only be unique for that installation of the message server, or it may be universally unique.

The JMSMessageID can be useful for historical repositories in applications where messages need to be uniquely indexed. The JMSMessageID is also useful for correlating messages, which is done using the JMSCorrelationID header.

The message provider generates the JMSMessageID automatically when the message is received from a JMS client. The JMSMessageID must start with ID:, but the rest of JMSMessageID can be any collection of characters that uniquely identifies the message to the JMS provider. Here is an example of a JMSMessageID generated by Progress’ SonicMQ:

// JMSMessageID generated by SonicMQ
ID:6c867f96:20001:DF59525514

If a unique message ID is not needed by the JMS application, the JMS client can provide a hint to the message server that an ID is not necessary by using the setDisableMessageID( ) method (as shown in the following code). Vendors that heed this hint can reduce message processing time by not generating unique IDs for each message. If a JMSMessageID is not generated, the getJMSMessageID( ) method returns null:

// Publish-and-subscribe
TopicPublisher topicPublisher = topicSession.createPublisher(topic);
topicPublisher.setDisableMessageID(true); // Point-to-point QueueSender queueSender = queueSession.createSender(topic); ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

Mastering Spring Boot 2.0

Mastering Spring Boot 2.0

Dinesh Rajput
Cloud Native Java

Cloud Native Java

Josh Long, Kenny Bastani

Publisher Resources

ISBN: 0596000685Supplemental ContentErrata Page