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The Duke's Bank Application

Stephanie Bodoff, Dale Green, Eric Jendrock, and Monica Pawlan

This chapter describes the Duke's Bank application, an online banking application. Duke's Bank has two clients: a J2EE application client used by administrators to manage customers and accounts, and a Web client used by customers to access account histories and perform transactions. The clients access the customer, account, and transaction information maintained in a database through enterprise beans. The Duke's Bank application demonstrates how all the component technologies--enterprise beans, J2EE application clients, and Web components--presented in this tutorial are put together to provide a simple but functional application.

Figure 18-1 gives a high-level view of how the components interact. This chapter looks at each of the component types in detail and concludes with a discussion of how to build, deploy, and run the application.

Figure 18-1 Duke's Bank Application

In This Chapter

Enterprise Beans

Session Beans

CustomerControllerEJB

TxControllerEJB

Entity Beans

Helper Classes

Database Tables

Protecting the Enterprise Beans

Application Client

The Classes and Their Relationships

BankAdmin Class

EventHandle Class

DataModel Class

Web Client

Design Strategies

Web Client Life Cycle

Protecting the Web Resources

Internationalization

Building, Packaging, Deploying, and Running the Application

Adding Groups and Users to the Realm

Starting the J2EE Server, deploytool, and Database

Compiling the Enterprise Beans

Packaging the Enterprise Beans

Compiling the Web Client

Packaging the Web Client

Compiling the J2EE Application Client

Packaging the J2EE Application Client

Packaging the Enterprise Archive File

Opening the Enterprise Archive File

Reviewing JNDI Names

Mapping the Security Roles to Groups

Deploying the Duke's Bank Application

Creating the Bank Database

Running the J2EE Application Client

Running the Web Client

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