The Java EE 6 Tutorial (original) (raw)

Document Information

Part I Introduction

Java EE 6 Platform Highlights

Java EE Application Model

Distributed Multitiered Applications

Java EE Components

Java EE Clients

Application Clients

The JavaBeans Component Architecture

Java EE Server Communications

Business Components

Enterprise Information System Tier

Java EE Containers

Container Services

Container Types

Web Services Support

SOAP Transport Protocol

WSDL Standard Format

Java EE Application Assembly and Deployment

Packaging Applications

Development Roles

Java EE Product Provider

Application Component Provider

Enterprise Bean Developer

Web Component Developer

Application Client Developer

Application Assembler

Application Deployer and Administrator

Enterprise JavaBeans Technology

Java Servlet Technology

JavaServer Faces Technology

JavaServer Pages Technology

JavaServer Pages Standard Tag Library

Java Persistence API

Java Transaction API

Java API for RESTful Web Services

Contexts and Dependency Injection for the Java EE Platform (JSR 299)

Dependency Injection for Java (JSR 330)

Bean Validation

Java Message Service API

Java EE Connector Architecture

Java Authorization Contract for Containers

Java Authentication Service Provider Interface for Containers

Java EE 6 APIs in the Java Platform, Standard Edition 6 and 7

Java Database Connectivity API

Java Naming and Directory Interface API

JavaBeans Activation Framework

Java API for XML Processing

Java Architecture for XML Binding

SOAP with Attachments API for Java

Java API for XML Web Services

Java Authentication and Authorization Service

GlassFish Server Tools

2. Using the Tutorial Examples

Part II The Web Tier

3. Getting Started with Web Applications

4. JavaServer Faces Technology

5. Introduction to Facelets

6. Expression Language

7. Using JavaServer Faces Technology in Web Pages

8. Using Converters, Listeners, and Validators

9. Developing with JavaServer Faces Technology

10. JavaServer Faces Technology: Advanced Concepts

11. Using Ajax with JavaServer Faces Technology

12. Composite Components: Advanced Topics and Example

13. Creating Custom UI Components and Other Custom Objects

14. Configuring JavaServer Faces Applications

15. Java Servlet Technology

16. Uploading Files with Java Servlet Technology

17. Internationalizing and Localizing Web Applications

Part III Web Services

18. Introduction to Web Services

19. Building Web Services with JAX-WS

20. Building RESTful Web Services with JAX-RS

21. JAX-RS: Advanced Topics and Example

Part IV Enterprise Beans

22. Enterprise Beans

23. Getting Started with Enterprise Beans

24. Running the Enterprise Bean Examples

25. A Message-Driven Bean Example

26. Using the Embedded Enterprise Bean Container

27. Using Asynchronous Method Invocation in Session Beans

Part V Contexts and Dependency Injection for the Java EE Platform

28. Introduction to Contexts and Dependency Injection for the Java EE Platform

29. Running the Basic Contexts and Dependency Injection Examples

30. Contexts and Dependency Injection for the Java EE Platform: Advanced Topics

31. Running the Advanced Contexts and Dependency Injection Examples

Part VI Persistence

32. Introduction to the Java Persistence API

33. Running the Persistence Examples

34. The Java Persistence Query Language

35. Using the Criteria API to Create Queries

36. Creating and Using String-Based Criteria Queries

37. Controlling Concurrent Access to Entity Data with Locking

38. Using a Second-Level Cache with Java Persistence API Applications

Part VII Security

39. Introduction to Security in the Java EE Platform

40. Getting Started Securing Web Applications

41. Getting Started Securing Enterprise Applications

42. Java EE Security: Advanced Topics

Part VIII Java EE Supporting Technologies

43. Introduction to Java EE Supporting Technologies

44. Transactions

45. Resources and Resource Adapters

46. The Resource Adapter Example

47. Java Message Service Concepts

48. Java Message Service Examples

49. Bean Validation: Advanced Topics

50. Using Java EE Interceptors

Part IX Case Studies

51. Duke's Bookstore Case Study Example

52. Duke's Tutoring Case Study Example

53. Duke's Forest Case Study Example

Chapter 1

Overview

Developers today increasingly recognize the need for distributed, transactional, and portable applications that leverage the speed, security, and reliability of server-side technology. Enterprise applications provide the business logic for an enterprise. They are centrally managed and often interact with other enterprise software. In the world of information technology, enterprise applications must be designed, built, and produced for less money, with greater speed, and with fewer resources.

With the Java Platform, Enterprise Edition (Java EE), development of Java enterprise applications has never been easier or faster. The aim of the Java EE platform is to provide developers with a powerful set of APIs while shortening development time, reducing application complexity, and improving application performance.

The Java EE platform is developed through the Java Community Process (JCP), which is responsible for all Java technologies. Expert groups, composed of interested parties, have created Java Specification Requests (JSRs) to define the various Java EE technologies. The work of the Java Community under the JCP program helps to ensure Java technology’s standard of stability and cross-platform compatibility.

The Java EE platform uses a simplified programming model. XML deployment descriptors are optional. Instead, a developer can simply enter the information as an annotation directly into a Java source file, and the Java EE server will configure the component at deployment and runtime. These annotations are generally used to embed in a program data that would otherwise be furnished in a deployment descriptor. With annotations, you put the specification information in your code next to the program element affected.

In the Java EE platform, dependency injection can be applied to all resources a component needs, effectively hiding the creation and lookup of resources from application code. Dependency injection can be used in EJB containers, web containers, and application clients. Dependency injection allows the Java EE container to automatically insert references to other required components or resources, using annotations.

This tutorial uses examples to describe the features available in the Java EE platform for developing enterprise applications. Whether you are a new or experienced Enterprise developer, you should find the examples and accompanying text a valuable and accessible knowledge base for creating your own solutions.

If you are new to Java EE enterprise application development, this chapter is a good place to start. Here you will review development basics, learn about the Java EE architecture and APIs, become acquainted with important terms and concepts, and find out how to approach Java EE application programming, assembly, and deployment.

The following topics are addressed here:

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