Mapping node functions

You can configure your message mappings using a variety of predefined and user-defined functions. The following predefined functions are available to use in your message maps: Not all ESQL functions can be used in a Mapping node. For information about which functions are supported, and for a description of how to achieve equivalent processing for ESQL functions that are not supported, see the ESQL topics.

Start of changeThe fn:true() function (that always returns true) and the fn:false() function (that always returns false) are examples of XPath functions. You can get more information about the other XPath functions and XPath syntax from the online W3C XML Path Language document.End of change

An additional capability provided by the mapping node is the ability to set the value of a target to a WebSphere MQ constant. The expression to set the value looks similar to a function with $mq: used as the prefix.

Related concepts
Mapping node
Mapping node syntax
Mapping node casts
Related tasks
Developing message mappings
Related reference
Mapping node