Special Edition Using Enterprise JavaBeans™ 2.0

Choosing to Manage Persistence Yourself

For every entity bean you develop, you have the option to write the database access code to manage its persistence yourself. The other choice is to define mappings between your bean’s fields and the database and put the responsibility on the container to keep your bean and the database in synch. This chapter looks at what you have to do to manage a bean’s persistence yourself. The two chapters that follow look at what you do to let the container do more of the work for you.

Most of this chapter is focused on the mechanics of implementing a bean using bean-managed persistence (BMP). You’ll learn what you’re expected to do within each of the callback methods that were introduced in the preceding chapter. ...