BEA WebLogic Workshop 8.1 Kick Start: Simplifying Java Web Applications and J2EE

Chapter 8. Advanced Control Development

by Albert J. Saganich, Jr.

IN THIS CHAPTER

• Control Life Cycle

• Control Events

• Controls and Transactions

• Control Projects and Packaging

• Building and Using EJB Controls

• Comparing Controls, EJBs, and JavaBeans

Control Life Cycle

As you saw in Chapter 3, “WebLogic Workshop Application Development Basics,” controls are specially annotated Java objects. As with any Java object, controls have a well-defined life cycle. They are created, perform their function, and are then destroyed. Controls differ from other objects in that you can catch life cycle events at various stages and perform work. Figure 8.1 shows the minimum life cycle events of all controls. Table 8.1 describes the details of each life cycle method. Other control ...