Chapter 2. Managed Beans

Topics in This Chapter

“Definition of a Bean” on page 33 “CDI Beans” on page 39 “Message Bundles” on page 40 “A Sample Application” on page 45 “Bean Scopes” on page 51 “Configuring Beans” on page 56 “The Expression Language Syntax” on page 63

A central theme of web application design is the separation of presentation and business logic. JSF uses beans to achieve this separation. JSF pages refer to bean properties, and the program logic is contained in the bean implementation code. Because beans are so fundamental to JSF programming, we discuss them in detail in this chapter.