This topic describes how to work with fields in a message header
that identify and affect the behavior of messages.
About this task
In addition to the routing fields (see
Setting routing addresses in a message header), there are a number of fields in the message header that
you can work with. These fields affect important qualities and characteristics
of the message, like priority and reliability, identity, and so on. See
Message header information for information about
the equivalence of the header fields to JMS message header fields, and the
methods available to work with them.