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The Java EE 6 Tutorial: Basic Concepts, Fourth Edition by Chinmayee Srivathsa, Kim Haase, Devika Gollapudi, Ian Evans, Eric Jendrock

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Chapter 16. Running the Enterprise Bean Examples

Session beans provide a simple but powerful way to encapsulate business logic within an application. They can be accessed from remote Java clients, web service clients, and components running in the same server.

In Chapter 15, “Getting Started with Enterprise Beans,” you built a stateless session bean named ConverterBean. This chapter examines the source code of four more session beans:

CartBean: a stateful session bean that is accessed by a remote client

CounterBean: a singleton session bean

HelloServiceBean: a stateless session bean that implements a web service

TimerSessionBean: a stateless session bean that sets a timer

The following topics are addressed here:

• “The cart Example

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