This week's book giveaway is in the Testing forum. We're giving away four copies of The Way of the Web Tester: A Beginner's Guide to Automating Tests and have Jonathan Rasmusson on-line! See this thread for details.
It is not easy to do that. In BMP the ejbLoad and ejbStore will contain the fetch and update code. Isn't is possible to define the business methods in an abstract class and have 2 sub classes one for CMP and another for BMP.