Non-Mainframe Programs and WebSphere MQ

If your Enterprise JavaBeans (EJBs) or web services programs are application-managed, then you must explicitly connect to, and disconnect from, WebSphere MQ using the MQCONN and MQDISC APIs. You need not perform any configuration.

However, if your EJBs or web services programs are container-managed, then you need to configure a WebSphere MQ XA resource switch module.