If you want the JMS trigger to receive a subset of messages from a specified destination, create a message selector. A message selector is an expression that specifies the criteria for the messages in which the JMS trigger is interested.

The JMS provider applies the message selector to messages it receives. If the selector evaluates to true, the message is sent to the JMS trigger. If the selector evaluates to false, the message is not sent to the JMS trigger.

By creating message selectors, you can delegate some filtering work to the JMS provider. This can preserve Integration Server resources that otherwise would have been spent receiving and processing unwanted messages.

The message selector must use the message selector syntax specified in the Java Message Service standard. The message selector can reference header and property fields in the JMS message only.