IntroductionCourse Outline

Topics
 
  • The core J2EE 1.4 specifications - Servlet, JSP and EJB
  • Developing a business logic layer using EJB
  • Developing a presentation layer using Servlet and JSP
  • Mastering the Rational Application Developer (RAD) tool

What you will learn
  After completing this course, the student should be able to:
  • Develop web based applications using Servlet and JSP
  • Develop business logic layer using EJB
  • Be productive developers in the Rational Application Developer (RAD) environment
  • Deploy application code inside WebSphere Application Server v6

Audience
  This course is designed for Java programmers and web application designers who have interest in learning how to build or maintain enterprise applications based on the J2EE architecture using IBM's WebSphere tools.

Prerequisites
  Intermediate level Java programming knowledge.

Duration
  5 days.
Lab Setup Guide

Outline for J2EE Programming Using Rational Application Developer (RAD) v7.0 Training

1. Introduction to Rational Application Developer (RAD) v7.0
 
  • Objectives
  • The RAD 7 Product
  • Eclipse Platform
  • Rational Web Developer
  • Rational Application Developer
  • Key Features in RAD v7.0
  • Views, Perspective, and Editor Areas
  • Basic Operations with RAD Views and Perspectives
  • The Java Perspective
  • The Debug Perspective
  • Navigator View
  • Package Explorer
  • Outline View
  • Task and Problems View
  • Build and Validation
  • Import and Export Project
  • Code Completion, Templates and Snippets
  • Searching
  • Setup Compiler Class Path
  • JRE Switching
  • Refactoring
  • Changing Class Name
  • Changing Method Name
  • Changing Variable Name
  • Moving a Class to a Different Package
  • Extracting Code to a Method
  • Pull Up and Push Down Methods
  • Migrating Workspace from RAD v6
  • Project Interchange Feature
  • Migrating J2EE Applications
  • J2EE Migration Wizard
  • Summary
 

2. J2EE Overview
 
  • Introduction
  • Why Do We Need J2EE?
  • J2EE Components
  • J2EE Technologies
  • Useful J2SE Technologies
  • Application Artifacts
  • J2EE Architecture
  • J2EE 1.4 Version Levels
  • J2EE Software Packaging
  • Deployment Descriptor
  • Enterprise Archive (EAR)
  • Web Modules and WAR
  • EJB Modules
  • Building Module Dependency
  • Objectives
  • Project Explorer
  • Servers View
  • The J2EE Perspective
  • The Web Perspective
  • Create an Enterprise Application
  • Setup Utility JAR
  • Create an EJB Project
  • Create a Web Project
  • Setup Dependent JAR Files
  • Create Server Instance and Server Configuration
  • Configure Server Instance
  • Add an Enterprise Application Project to the Test Server
  • Start and Stop the Server
  • Test a Servlet
  • Debug a servlet
  • Test a JSP
  • Debug a JSP
  • Summary
 

3. Servlet Basics
 
  • Objectives
  • History CGI
  • Server Extension APIs
  • Java Servlet
  • Servlet Container
  • Servlet Responsibilities
  • J2EE and Servlet
  • The Servlet Class
  • The HttpServlet Class
  • An Example Hello World
  • The Servlet Container
  • The Servlet API
  • Life Cycle Initialization
  • Example Initialization
  • Life Cycle Processing
  • Life Cycle Destroy
  • User Input
  • Example User Input
  • Output to Client
  • Servlet Error Handling
  • Threading Issues
  • Create a Servlet in RAD
  • Code Servlet Methods
  • The Web Deployment Descriptor
  • Test the Servlet
  • Debug Servlets in the WebSphere Test Environment
 

4. JavaServer Page (JSP) Basics
 
  • Objectives
  • JavaServer Pages
  • A Simple Example - Hello.jsp
  • JSP Benefits
  • Evolution of Dynamic Content Technologies
  • How JSP Works
  • JSP Invocation
  • JSP Scripting Elements
  • The XML Syntax
  • JSP Directive
  • page Directive Attributes
  • page Directive an Example
  • page Attribute errorPage
  • page Attribute isErrorPage
  • Using XML Syntax
  • Directives include
  • Include an Example
  • Include at compile time vs. at request time
  • Request time inclusion
  • JSP Declarations
  • Declarations an Example
  • JSP Expressions
  • JSP Expressions an Example
  • JSP Scriptlets
  • JSP Scriptlets an Example
  • JSP Comments
  • JSP Predefined Variables
  • The request Object
  • The response Object
  • The out Object
  • Out an Example
  • Creating a JSP With RAD
  • Editing a JSP With RAD
  • Testing a JSP With WSAD
  • Debugging a JSP With RAD
 

5. Servlet Interaction Interface
 
  • Objectives
  • Request
  • Request Parameters
  • Request Attributes
  • Request Headers
  • Request Path
  • Other Request Information
  • Response
  • Cookies
  • Setting Cookies
  • Servlet Context
  • Servlet Context Attributes
  • Resource
  • Session Tracking
  • Tracking Techniques
  • Cookies
  • Cookies an Example
  • HTML Hidden Fields
  • Using HttpSession
  • Session Invalidation
  • An Example of Session Tracking Code...
  • HttpSession - URL Rewriting
  • Summary
 

6. Servlet Programming Advanced
 
  • Objectives
  • Key Issues for Web Application Development Productivity
  • Web Application Programming Model MVC
  • Model
  • View
  • Controller
  • What is JDBC?
  • JDBC Architecture
  • JDBC: Basic Steps
  • Loading a Driver
  • DB2 UDB JDBC Drivers
  • Oracle JDBC Drivers
  • Create a Connection
  • Connection
  • Statement
  • PreparedStatement
  • ResultSet
  • Example JDBC Servlet With Transactions
  • Close the Connection
  • Need for Connection Pooling
  • Connection Pooling in JDBC 2.0
  • Connection Pooling
  • Basic Steps in Using JDBC Connection Pooling
  • Access a DataSource
  • Get a Connection
  • Release Connections
  • Connection Pool Example
  • Resource References
  • JavaBeans
  • MVC Implementation
  • Request Dispatching
  • Request Dispatching - Forward vs. Include
  • HTTP Redirection
  • Dispatch vs. redirection
  • Integrating Servlet and JSP
  • Calling a JSP from a Servlet
  • Request Dispatching - forward Request to JSP
  • Supply Result information to the JSP
  • A Simple Example
  • Display JavaBean Properties in JSP
 

7. Using Java Beans with JSP
 
  • Objectives
  • What is a JavaBean?
  • Structure of a JavaBean
  • Life Cycle
  • Properties
  • Very Simple Bean
  • Using Java Beans in JSP
  • The <jsp:useBean> tag
  • Java Bean scope
  • <jsp:useBean> in Action
  • The <jsp:getProperty> tag
  • The <jsp:setProperty> tag
  • Mapping all the request parameters
  • Another Example
  • Mixing Scriptlets and Bean tags
 

8. JSP Expression Language and Standard Tag Library
 
  • JSP Expression Language (EL)
  • Basic Usage
  • Built-in Objects
  • Working With Arrays and Maps
  • Operators
  • Full Example
  • JSP Standard Tag Library (JSTL 1.1)
  • JSP Standard Tag Library (JSTL 1.0)
  • Run Time Version (JSTL 1.0)
  • Basic Tags
  • Condition Tags
  • Interator Tags
  • Internationalization (I18N)
  • Setting Preferred Locale
  • Specifying Resource Bundle
  • Display Translated Text
  • Display Number
  • Display Date
  • JDBC Tags
  • Specify Data Source
  • Performing a Query
  • Display Result
  • Pagination Example
 

9. Enterprise JavaBean (EJB) Overview
 
  • Objectives
  • Needs for EJB
  • Distributed Computing
  • Distributed Transaction
  • Distributed Security
  • What are EJBs?
  • Main Characteristics of EJBs
  • EJB Remote Method Call
  • EJB Architecture Components
  • EJB Client
  • EJB JAR File
  • EJB Server
  • EJB Container
  • EJB Container - Persistence
  • EJB Container - Transaction
  • Enterprise Java Beans
  • Session Beans
  • Entity Beans
  • EJB Classes and Interfaces
  • Basic Components of Entity and Session Beans
  • EJB Home Interface
  • An EJB Home Interface Example
  • EJBHome Object
  • EJB Remote Interface
  • Remote Interface Example
  • EJB Local Home Interface
  • EJB Local Interface
  • Remote EJB Objects
  • Local EJB Objects
  • EJB Implementation Class
  • Remote v. Local EJBs
  • EJB Application Development
  • Deploying Enterprise Beans
  • Major Components of Deployed EJBs
  • Summary
 

10. Session Bean
 
  • Objectives
  • Session Beans
  • Stateless Session Bean
  • Stateful Session Bean
  • Components of Session Beans
  • Home Interfaces
  • Remote Interface
  • Local Interface
  • Service Endpoint Interface (SEI)
  • The Session Bean Class
  • ejbCreate() Method
  • Business Methods
  • A Simple Stateless Session Bean Example
  • A Simple Stateful Session Bean Example
  • Registering Artifacts in ejb-jar.xml
  • Session Context
  • EJB Context
  • EJB Context
  • Session Bean Lifecycle
  • Lifecycle - Stateless
  • Lifecycle - Stateful
  • Concurrency Issues
  • Invoking Session Beans from Client Application
  • Looking Up a Home Object
  • EJB Reference
  • Create an EJB Object
  • Calling Business Methods
  • IBM RAD for EJB Development
  • Developing a Session Bean using RAD
  • EJB Project in RAD
  • Create an EJB Project
  • Examine the EJB Project
  • Create a Session Bean
  • Code Methods
  • Promote Methods to Interfaces
  • Deploying EJBs
  • EJB Deployment Descriptor
  • Generating Deployed Code
  • Run on Server
  • JNDI Explorer
  • Test the Home Interface
  • Test the Component Interface
  • EJB JAR File Structure
  • EJB Client JAR File Structure
 

11. Entity Bean
 
  • Objectives
  • Entity Beans
  • Persistence
  • Entity Bean Components
  • Container
  • Container
  • Container
  • Primary Key Class
  • A Primary Key Class Example
  • (Remote) Home Interface
  • Local Home Interface
  • Remote Interface
  • Local Interface
  • Entity Bean Class
  • Entity Instance
  • Entity Object Lifecycle
  • Bean Instance Lifecycle
  • Bean Managed Persistence
  • Container Managed Persistence
  • Writing BMP Bean
  • A BMP Bean Example
  • Writing a CMP Bean
  • Indicating Persistent Fields
  • Writing a CMP Bean
  • Writing a CMP Bean
  • Example Bean Class
  • Deployment Descriptor Settings
  • Writing finder methods
  • EJB Query Language
  • EJBQL: Simple examples
  • EJBQL: SELECT clause
  • EJBQL: FROM clause
  • EJBQL: WHERE clause
  • EJBQL: Watch out!
  • Using EJBQL in a CMP bean
  • Business Methods
  • EntityContext
  • Writing CMP Beans
  • Defining and Mapping CMP Fields
  • Developing Entity Beans in RAD
  • Adding a CMP Entity EJB
  • EJB Deployment Descriptor
  • Add an EJBQL Query
  • Create a Physical Data Model
  • Creating a Database Mapping
  • Choosing a Backend
  • Choosing a Mapping Type
  • Specifying the Mapping
  • EJB 2.0 Relationships
  • WebSphere Extensions
 

12. J2EE Application Deployment
 
  • Objectives
  • Overview
  • Generate Deployed Code
  • Export EAR
  • Separate Client Side Code
  • Export EJB Client JAR
  • Export Utility JAR
  • J2EE Deployment
  • Administrative Console
  • Environment Variables
  • Security
  • Resources
  • Creating JDBC Provider
  • Creating Data Source
  • WebSphere MQ JMS Configuration
  • WebSphere MQ JMS Provider
  • Connection Factory
  • Destination
  • Listener Port
  • Relationship Between Messaging Components
  • Installing Applications
  • Server Options
  • Starting an Application
  • Summary
 

13. Business and Integration Tier Patterns
 
  • Objectives
  • Business Delegate Pattern
  • How it works
  • Data Transfer Object Pattern
  • DTO Example (Output)
  • DTO Example (Input)
  • Role of DTO in MVC
  • Access Beans
  • Types of Access Beans
  • Data Class Access Bean
  • Data Class Programming Model
  • Access Bean Constructor
  • Generating Access Beans
  • Generating a Data Class
  • Generating an EJB Factory
  • Using EJB Factory and Data Class
  • Deleting the Access Bean
  • Value Object Pattern
  • Multiple Value Objects
  • Best Practice derive EJB from the Value Object
  • Composite Entity Pattern
  • An example
  • Class Diagram
  • How the client interacts
  • Value Object Assembler
  • Value List Handler
  • How does it work?
  • How does it work - continued
  • Design Considerations
  • Service Locator
  • Data Access Object (DAO)
  • DAO Implementation Guidelines
  • Service Activator
  • MDB- Integrating JMS and EJB
  • Message-Driven Beans Are Different From Other EJBs
  • Message-Driven Beans are Stateless
  • Message-Driven Bean Interfaces
  • Example: Message Counter
  • Class MessageCounter
  • Processing the Message
  • Deployment Descriptor Entry
  • Summary
 

Appendix A. Message-Driven Beans
 
  • Objectives
  • The Trouble with RMI/IIOP
  • Messaging to the Rescue
  • Messaging Features
  • Message-Oriented Middleware
  • Messaging Domains
  • Publish/Subscribe
  • Point-to-Point
  • Java Message Service
  • JMS Programming: Overview
  • The JMS Interfaces
  • JMS Programming: Example
  • Integrating JMS and EJB
  • Message-Driven Beans Are Different From Other EJBs
  • Message-Driven Beans Cannot Talk to Their Clients
  • Message-Driven Beans are Stateless
  • Durable Subscription
  • Message-Driven Bean Interfaces
  • javax.ejb.MessageDrivenBean
  • javax.jms.MessageListener
  • javax.jms.Message
  • Lifecycle
  • Example: Message Counter
  • Class MessageCounter
  • Working With Messages
  • Processing the Message
  • Deployment Descriptor Entry
  • Binding the Queue or Topic
  • Transactions
  • Security
  • Load Balancing
  • Clustering and Topics
  • Clustering and Queues
  • A Few Tips
  • Poison Messages
  • How the Programmer Can Avoid Poison Messages
  • How the System Administrator Can Avoid Poison Messages
  • Building a Response
  • Potential Problems
  • A Simple Alternative
  • Type Checking and Messages
  • Testing Message-Driven Beans
  • Summary
  • References
 

Appendix B. JSP Custom Tag Development
 
  • Objectives
  • What is Custom Tag?
  • Why Develop Custom Tags?
  • The Nature of a Custom Tag
  • Tag Body
  • Fragment Attribute
  • Dynamic Attributes
  • Tag Library Descriptor (TLD)
  • Tag Implementation Options
  • The Simple Tag API
  • Example Tag Class
  • Life Cycle of a Simple Tag
  • The JspContext Object
  • Dealing With the Body
  • Implementing an Iteration Tag
  • Accessing a Parent Tag
  • Working With Fragment Attributes
  • The TLD File
  • Defining a Tag
  • Packaging a Tag Library
  • Using a Tag Library
  • The Tag File Approach
  • Example Tag File
  • The Tag Directive
  • Defining Attributes
  • Working With Variables
  • Working With Fragment Attributes
  • Packaging Tag Files
  • Creating the TLD File
  • Using a Tag File From a JSP
 

Appendix C. JMS Overview
 
  • Objectives
  • Messaging Intro
  • Messaging Example
  • Messaging Components
  • Messaging Types
  • JMS (Java Messaging Service)
  • Message Driven Beans (MDB)
  • MDB as Message Consumer
  • JMS Resources
  • JMS Messaging Configuration Questions
  • JMS Messaging Configuration Answers