Data access from J2EE Connector Architecture applications
To access data from a J2EE Connector Architecture (JCA) compliant application in WebSphere Application Server, you can use encapsulated session beans and JCA connectors.
Use WebSphere Studio Application Developer Integration Edition (WSADIE) 4.1.1 to create a SessionBean that encapsulates the access to the backend. To find help on this subject, see the documentation for WSADIE.
J2EE Connector Architecture migration tips
Accessing data using J2EE Connector Architecture connectors
Example: Connection factory lookup
Data access : Resources for learning