Message Transformation During Message Delivery

A link target or a DMQ can specify a message transformer to process the message before it is delivered to the target destination or DMQ destination. This message transformer must be a Java class that extends the Message Queue bridge com.sun.messaging.bridge.service.MessageTransformer abstract class and has javax.jms.Message as its formal type parameters. To specify a message transformer, set the message-transformer-class attribute of a link target or a DMQ to the fully qualified class name of the Java class.

During message transfer processing, the JMS message to be transferred to a target, plus any property subelements of the link's target element or the dmq element, are passed to the message transformer's MessageTransformer.transform() method, and the returned JMS message is sent to the target destination.