Messages, Service Operations and Handlers

Message definitions only define the shape of the data contained in a message. A message definition doesn't contain any other type of information, such as if the message is being used synchronously or if it's a response message.

After you create a message definition, you can use it in or more service operations. The service operation contains all the information about how the message is to be used, the routing, the queue if appropriate, and so on.

At least one handler is defined with every service operation. Handlers define additional programming to be used with processing the message associated with the service operation. The handlers can be thought of as corresponding to pre PeopleSoft 8.48 message events.

The PeopleCode for the various handlers is contained in the Integration Broker application classes.