IBM BPM, V8.0.1, All platforms > Authoring services in Integration Designer > Services and service-related functions > Access external services with messaging systems > Java Message Service (JMS) > JMS, MQ JMS and generic JMS bindings > JMS function selectors
Overview of JMS function selectors
When a message arrives on a destination, the function selector is used to determine which operation corresponds to the message.
Some function selectors are supplied. In the default function selector section, we discuss the general behavior of a function selector and the implementation of the default function selector. In the standard JMS message function selector section, we discuss a particular function selector for the body types used by this standard.
- Default JMS function selector
The default JMS function selector is described.- JMS function selector
The JMS function selector for the JMS standard of defining a message class with subclasses for the payload is discussed.
Related concepts:
Prepackaged JMS function selectors