MQ_PUBLISH_EXIT - Publish exit

Purpose

Use the publish exit to inspect and alter messages delivered to subscribers:

• Examine the contents of a message published to each subscriber
• Modify the contents of a message published to each subscriber
• Alter the queue to which a message is put
• Stop the delivery of a message to a subscriber

This exit is not available on IBM® MQ for z/OS®.

Syntax

Parameters

ExitParms (MQPSXP)- Input/Output

ExitParms contains information about the invocation of the exit.

PubContext (MQPBC) - Input

PubContext contains contextual information about the publisher of the publication.

SubContext (MQSBC) - Input/Output

SubContext contains contextual information about the subscriber receiving the publication.