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J2EE™ Tutorial, The by Beth Stearns, Monica Pawlan, Eric Jendrock, Kim Haase, Dale Green, Stephanie Bodoff

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Chapter 3. Enterprise Beans

Dale Green

Enterprise beans are the J2EE components that implement Enterprise JavaBeans (EJB) technology. Enterprise beans run in the EJB container, a runtime environment within the J2EE server (see Figure 1-5, page 10). Although transparent to the application developer, the EJB container provides system-level services such as transactions to its enterprise beans. These services enable you to quickly build and deploy enterprise beans, which form the core of transactional J2EE applications.

In This Chapter

What Is an Enterprise Bean?

Benefits of Enterprise Beans

When to Use Enterprise Beans

Types of Enterprise Beans

What Is a Session Bean?

State Management Modes

When to Use Session Beans

What Is an Entity Bean?

What ...

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