Parts of an XMS message

An XMS message consists of a header, a set of properties, and a body.

Header

The header of a message contains fields, and all messages contain the same set of header fields. XMS and applications use the values of the header fields to identify and route messages. For more information about header fields, see Header fields in an XMS message.

Set of properties

The properties of a message specify additional information about the message. Although all messages have the same set of header fields, every message can have a different set of properties. For more information, see Properties of an XMS message.

Body

The body of a message contains application data. For more information, see The body of an XMS message.

An application can select which messages it wants to receive. By using message selectors, which specify the selection criteria. The criteria can be based on the values of certain header fields and the values of any of the properties of a message. For more information about message selectors, see Message selectors.