The standard platform for enterprise application development has been
EJB but the difficulties of working with it caused it to become
unpopular. They also gave rise to lightweight technologies such as
Hibernate, Spring, JDO, iBATIS and others, all of which allow the
developer to work directly with the simpler POJOs. Now EJB version 3
solves the problems that gave EJB 2 a black eye-it too works with POJOs.
POJOs in Action describes the new, easier ways to develop
enterprise Java applications. It describes how to make key design
decisions when developing business logic using POJOs, including how to
organize and encapsulate the business logic, access the database, manage
transactions, and handle database concurrency. This book is a
new-generation Java applications guide: it enables readers to
successfully build lightweight applications that are easier to develop,
test, and maintain.