EJB 3 is the most important innovation introduced in Java EE 5.0. EJB 3 simplifiesenterprise development, abandoning the complex EJB 2.x model in favorof a lightweight POJO framework. The new API represents a fresh perspectiveon EJB without sacrificing the mission of enabling business application developersto create robust, scalable, standards-based solutions.EJB 3 in Action is a fast-paced tutorial, geared toward helping you learn EJB 3and the Java Persistence API quickly and easily. For newcomers to EJB, this bookprovides a solid foundation in EJB. For the developer moving to EJB 3 from EJB2, this book addresses the changes both in the EJB API and in the way the developershould approach EJB and persistence.