Java Training : Fundamentals of Enterprise JavaBeans (EJB) Using WebLogic 7

This class uses lecture and extensive hands-on workshops to teach you the concepts and techniques of coding Enterprise JavaBeans.

Java Training Background

Enterprise JavaBeans is a specification that promises to greatly ease the creation of sophisticated transaction-based applications with minimal work. It does this by shifting the burden of writing the complex "plumbing" of such applications from the programmer to the middleware vendor. The application programmer need only be concerned with solving the business problem at hand. The resulting server application is not only portable to all platforms that conform to EJB specifications but it also encourages reuse through its modular design. EJB has quickly gained enthusiastic support by most middleware vendors, and it is expected to become the standard solution for Java-based transaction applications in the near future.

Note: This course addresses version 2.0 of the EJB specification as implemented in J2EE version 1.3 and WebLogic 7.

Java Training Platform

WebLogic Application Server 7 running on Windows NT 4.0 or 2000 Professional or Sun Solaris.

Java Training Prerequisites

Familiarity with the Java programming language. An understanding of databases and transactions concepts is helpful but not required. A basic understanding of XML and XML DTDs (document type definitions) is also helpful but not required.

Java Training Course duration

4 Days

Java Training Learning Objectives

After successfully completing this course, you will be able to:

Code Enterprise JavaBeans!
Understand the EJB architecture and show its advantages
Understand how EJB relates to other middleware technologies
See EJB examples that can be used as basis for real applications
Get a solid base of the technology to work independently
Practice use the basic WebLogic utilities for creating and deploying EJBs
Understand the differences between the latest version of the EJB 2.0 specification and WebLogic's implementation of it.

Java Training Course outline

Introduction to EJB

Distributed Objects
Local and Remote Objects
What is EJB?
EJB & Enterprise Java
EJB Architecture

Session Beans

Session Beans: Overview
Session Bean Life Cycle
Writing a Session Bean
The Remote Interface
The Home Interface
The Session Bean Class
Writing a Bean: Recap

Deploying Session Beans

Overview
Deployment Descriptor
Deploying the Bean

Introduction to WebLogic 7

Overview
Architecture
System Management

Deploying EJBs in WebLogic

Overview
1. Create DDs
2. Jar the Beans & DDs
3. Make container classes
4. Install the Jar
Management

Writing an EJB Client

EJB Clients
JNDI
Looking Up a Bean

Entity Beans

Entity Beans: Overview
Entity Bean Life Cycle
Writing an Entity Bean
The Remote Interface
The Primary Key
The Home Interface
The Entity Bean Class
The EntityBean Interface

Deploying Entity Beans

Overview
Deployment Descriptor
Deploying the Bean
Deploying an Entity Bean

Managing Persistence in Weblogic

J2EE & Persistence
Setting Up Persistence
Creating connection pools

The Bean Class Revisited

EnterpriseBean
Passivation / Activation
Load & Store
Removing a Bean
Bean Context
Bean Class Bases
Using Bean References

Using Exceptions in EJB

EJB Exceptions Overview
Application Exceptions
System Exceptions
Recap

Transactions

Transactions
Transactions in EJB
Container-Managed TXs
Bean-Managed TX's

Bean-Managed Persistence

BMP vs CMP
The Bean Class

Other EJB Issues

Environment Settings
Beans & Threads
Design Ideas

Hardware/Software Requirements

Hardware Requirements

Intel-based PC Workstation

Windows NT 4.0 or 2000 Professional

Note: Windows 95 & 98 are NOT supported

Minimum 200 MHz Processor
Minimum of 64 MB memory
Minimum of 4 KB environment space
Minimum of 400 MB disk space for Java & WebLogic software; additional 140 MB for documentation

The workstations must have TCP/IP access to themselves (i.e. they can recognize localhost). TCP/IP access to the instructor machine is highly desirable but not absolutely necessary.

Software Requirements

WebLogic Application Server v 7.0
Java 2 Standard Edition version 1.4 software and documentation*
Java 2 Enterprise Edition version 1.4 software and documentation*
A standard browser (for documentation)
Adobe Acrobat Reader*
Student files
Text Editor*

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