The Enterprise Java Beans (EJB) deployment pattern will be used in integration scenarios where the external system connecting to Oracle Banking Payments is ‘EJB literate’, i.e., the external system is capable of interacting with Oracle Banking Payments based upon the EJB interface. In this deployment pattern, the external system will use the RMI/IIOP protocol to communicate with the Oracle Banking Payments EJB.

In this deployment pattern the EJB displayed by Oracle Banking Payments will be a stateless session bean. The actual request will be in the form of an XML message. After the necessary processing is done in Oracle Banking Payments based on the request, the response is returned to the external system as an XML message. The transaction control for the processing will stay with the Oracle Banking Payments EJB.