Intercepting publications

You can intercept a publication, modify it, and then republish it before it reaches any other subscriber.

You might want to intercept a publication before it reaches a subscriber in order to do one of the following actions:
  • Attach additional information to the message
  • Block the message
  • Transform the message
You can perform the same operation on each message or vary the operation depending on the subscription, the message, or the message header.