Network Deployment (Distributed operating systems), v8.0 > Develop and deploying applications > Develop Service integration > Program mediations
Add mediation function to handler code
A mediation handler is a wrapper for the mediation code that operates on the message. We can add mediation function to an existing mediation handler by working with the message context, the message properties, the message header or the message payload. Create or open a mediation handler in an EJB project. See Write a mediation handler.
There are four main aspects of the message through which you can change the behavior of the mediation handler code, or influence the routing of a message. We can change the values in the message context and message properties, and you can work with the contents of the message (called the message payload), or with the message header:
- Work with the message context
- Work with message properties
- Work with the message header
- Work with the message payload