JV011 - Developing Enterprise JavaBeans V 3.0

Summary

Objective

The EJB architecture is a component architecture for the development and deployment of component-based business applications. Applications written using the Enterprise JavaBeans architecture are scalable, transactional, and multi-user secure.

The purpose of EJB 3 is to improve the EJB architecture by reducing its complexity from the EJB developer's point of view.

Table of Contents

1. Introduction

• What is JEE
• JEE APIs
• JEE Architecture
• Benefits of JEE

2. EJB 3 Concepts

• What is new in EJB 3?
• EJB Roles
• Web Services
• Types of EJB
• Session Bean
• Message-Driven Bean
• Flexible Model

3. Session Bean

• Session Bean Contract
• Classes and Interfaces
• The Stateless Session Bean
• Requirements for Stateless Session Bean
• The Life Cycle of a Stateless Bean
• Life in the Method-Ready Pool
• Life Cycle Methods
• Dependency Injection
• SessionContext Interface
• EJBContext Interface
• Example: Business Interface
• Example: Bean Class
• Steps to Compile
• Run Application
• Conversational State of a Stateful Session Bean
• Requirements for  Stateful  Session Bean
• The Life Cycle of a Stateful Bean
• Lifecycle Callbacks for Stateful Session Beans
• Bean’s Conversational State
• Example

4. Message-Driven Beans

• Overview of MDB
• Overview of JMS
• Using JMS
• Type of Messages
• Message Producer : Session Bean
• @MessageDriven
• @ActivationConfigPropert
• Message Consumer: MDB
• Example

5. Writing a Client

• Overview
• Locating Objects with JNDI
• The Server Namespace
• Locating JNDI Service
• Environmental Object in the InitialContext
• System Properties
• Client View
• Remote Client
• Local Client
• Obtaining a Session Bean’s Business Interface
• Client View: Entity
• Obtaining an EntityManager

6. JPA and Entity

• Java Persistence API
• Entity  Overview
• Domain Model
• EntityManager Interface
• Primary Keys 
• Developing  Entity
• Entity  Details
• Entity  Client
• Dependency Injection
• Dynamic Lookup
• EntityManager
• Security
• Example

7. Dependency Management

• Overview
• The JNDI ENC and Injections
• What Can Be Registered in the ENC?
• How is the JNDI ENC Populated?
• Annotation Population
• Dependency Lookup
• Dependency Injection
• Declaring Dependencies
• @EJB
• @PersistenceContext
• @Resource
• @Resources

8. Object-Relational Mapping

• Field Access
• Property Access
• Mapping to a Table
• Column Mapping
• Mapping Simple Types
• Mapping the Primary Key
• Identifier Generation
• Primary-Key Classes
• Finding an Entity
• Removing an Entity
• Updating an Entity
• Finding all Records
• Example: Primary ID is Known
• Example: Primary ID is Not Known

9. Transactions

• Overview
• Distributed Transactions
• Isolation Levels
• Transactions in EJB
• Managing Transactions
• BMT
• CMT
• Transactions Attributes
• Transactions Outside the Container
• Example