The MQRFH2 message header carries JMS-specific data that is associated with
the message content. It can also carry additional information that is
not directly associated with JMS. The message header contains the
following folders:
- The <mcd> folders contains properties that describe the
"shape" or "format" of the message.
- The <jms> folder is used to transport JMS header fields, and JMS
properties that cannot be fully expressed in the MQMD. This folder is
always present in the messages implemented using JMS, which are sent by the
connector framework. However, in the business integration system, this
folder is irrelevant and is omitted by WebSphere MQ Integrator Broker when
sending messages to the connector framework.
- The <usr> folder is used to transport any application-defined
properties associated with the message. This folder is only present if
the application has set some application-defined properties. In the
business integration system, this folder is used to send return status
information in a response message. The tables below identify the types
of messages that require this folder.
