Document Information


Part I Introduction

1.  Overview

2.  Using the Tutorial Examples

Part II The Web Tier

3.  Getting Started with Web Applications

4.  Java Servlet Technology

5.  JavaServer Pages Technology

6.  JavaServer Pages Documents

7.  JavaServer Pages Standard Tag Library

8.  Custom Tags in JSP Pages

9.  Scripting in JSP Pages

10.  JavaServer Faces Technology

11.  Using JavaServer Faces Technology in JSP Pages

12.  Developing with JavaServer Faces Technology

13.  Creating Custom UI Components

14.  Configuring JavaServer Faces Applications

15.  Internationalizing and Localizing Web Applications

Part III Web Services

16.  Building Web Services with JAX-WS

17.  Binding between XML Schema and Java Classes

18.  Streaming API for XML

19.  SOAP with Attachments API for Java

Part IV Enterprise Beans

20.  Enterprise Beans

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

Stateful Session Beans

Stateless Session Beans

When to Use Session Beans

What Is a Message-Driven Bean?

What Makes Message-Driven Beans Different from Session Beans?

When to Use Message-Driven Beans

Defining Client Access with Interfaces

Remote Clients

Local Clients

Deciding on Remote or Local Access

Web Service Clients

Method Parameters and Access


Granularity of Accessed Data

Naming Conventions for Enterprise Beans

The Life Cycles of Enterprise Beans

The Life Cycle of a Stateful Session Bean

The Life Cycle of a Stateless Session Bean

The Life Cycle of a Message-Driven Bean

Further Information about Enterprise Beans

21.  Getting Started with Enterprise Beans

22.  Session Bean Examples

23.  A Message-Driven Bean Example

Part V Persistence

24.  Introduction to the Java Persistence API

25.  Persistence in the Web Tier

26.  Persistence in the EJB Tier

27.  The Java Persistence Query Language

Part VI Services

28.  Introduction to Security in the Java EE Platform

29.  Securing Java EE Applications

30.  Securing Web Applications

31.  The Java Message Service API

32.  Java EE Examples Using the JMS API

33.  Transactions

34.  Resource Connections

35.  Connector Architecture

Part VII Case Studies

36.  The Coffee Break Application

37.  The Duke's Bank Application

Part VIII Appendixes

A.  Java Encoding Schemes

B.  About the Authors



The Contents of an Enterprise Bean

To develop an enterprise bean, you must provide the following files:

  • Enterprise bean class: Implements the methods defined in the business interface and any life cycle callback methods.

  • Business Interfaces: The business interface defines the methods implemented by the enterprise bean class.

  • Helper classes: Other classes needed by the enterprise bean class, such as exception and utility classes.

You package the files in the preceding list into an EJB JAR file, the module that stores the enterprise bean. An EJB JAR file is portable and can be used for different applications. To assemble a Java EE application, you package one or more modules (such as EJB JAR files) into an EAR file, the archive file that holds the application. When you deploy the EAR file that contains the bean’s EJB JAR file, you also deploy the enterprise bean to the Application Server. You can also deploy an EJB JAR that is not contained in an EAR file. Figure 20-2 shows the contents of an EJB JAR file.

Figure 20-2 Structure of an Enterprise Bean JAR

Diagram showing the structure and contents of an enterprise bean JAR file.