NOTE: All references to the J2EE reference implementation (J2EEri) may be replaced with a particular EJB application server (e.g. WebSphere, WebLogic) based on customer preference.

Audience

Java programmers interested in developing client/server and web applications that use EJBs.

Prerequisites

Experience with JDK 1.2 including RMI, JSPs and servlets, JavaBeans, relational database theory, SQL, JDBC, Collections. Serialization, I/O and XML.

Course Duration – 5 Weeks

At the Course Completion

At the completion of this course, the student will be able to:

• Use EJB technology to build two-tier and three-tier applications

• Understand the strengths and weaknesses of the EJB architecture

• Demonstrate the use of proven design and development techniques for building efficient and high-performance EJB applications

• Understand when and when not to apply EJB technology

                                                COURSE OUTLINE

Introduction and Overview

Monitors and Object Request Brokers
EJBs Defined
EJBs vs. JavaBeans
J2EE Reference Implementation (J2EEri)

JNDI Environment Naming Context (JNDI ENC)

Motivation for JNDI
JNDI Architecture
JNDI API
J2EEri JNDI Life Cycle

EJB Architecture

Client Types
EJB Types
J2EE Application Design
J2EE Roles and Responsibilities

Entity EJBs

Entity EJB Applications
Entity EJB Interfaces
Entity EJB Exceptions
EJB Home Beans
Entity EJB Life Cycle
Entity EJB Roles and Responsibilities
J2EEri Entity EJB Tasks

JNDI Environment Naming Context (JNDI ENC)

Motivation for JNDI ENC
JNDI ENC Discussion and Examples
J2EEri JNDI ENC Tasks

Session EJBs

Motivation for Session EJBs
Session EJBs vs. Entity EJBs
Stateful vs. Stateless EJBs
Session EJB Interfaces
Stateless Session EJB Lifecycle
J2EEri Stateless Session EJB Lifecycle
J2EEri Stateless Session EJB Tasks
Stateful Session EJB Tasks
J2EEri Stateful Session EJB Tasks

EJB Exception Handling

EJB Exceptions
Application Exceptions
System Exceptions
EJB Container Exception Handling
EJB Client Exception Handling

EJB Client API

EJB Clients
EJB Object Interface and Methods
EJB Home Interface and Methods
Motivation for Handles
Handle Interfaces
Using Handles

EJB Persistence

Motivation for Bean-Managed Persistence (BMP)
BMP Interfaces and Database Manipulation
BMP vs. Container-managed Persistence (EJB 1.1 CMP)
J2EEri EJB Persistence
Guidelines for Persistence Model Selection

EJB Transactions

Database Transactions
Motivation for EJB Transactions
Container-managed Transactions (CMT) vs. Bean-managed Transactions (BMT)
CMT Transaction Attributes
Commit and Rollback
Explicit Rollback
J2EEri EJB CMT Tasks
Java Transactions APT
J2EEri EJB BMT Tasks

EJB Browser Clients

J2EE Application Design Choices
JSPs and EJBs
J2EEri EJB Browser Client Tasks

EJB Security

EJB Security Model
Security Context
Roles and Responsibilities
Permissions
Security Identities
Security Domains
Principal Realms
Runtime Security Enforcements

EJB Deployment

Motivation for EJB Deployment
EJB Deployment Descriptor
Bean Provider's Role and Responsibilities
Application Assembler's role and Responsibilities

EJB 2.0

EJB 2.0 Persistence Model
EJB Query Language
Message-Driven Beans
JMS and EJB 2.0

Building Scalable EJB Systems

EJB Strengths and Weaknesses
What to look for in and EJB Server
Key Design Patterns for EJB Success
A Blueprint for J2EE Success