Contents

List of Figures

List of Tables

Title and Copyright Information

Preface

• Audience
• Documentation Accessibility
• Organization
• Related Documents
• Conventions

1 Overview

• 1.1 Overview of J2EE
  • 1.1.1 What is the J2EE Application Model?
  • 1.1.2 What is the J2EE Platform?
• 1.2 What is an Application Server?
• 1.3 Overview of Oracle Application Server
  • 1.3.1 J2EE Application Migration Challenges
• 1.4 J2EE Application Architecture
• 1.5 Migration Issues
  • 1.5.1 Portability
  • 1.5.2 Dependence on Vendor Specific Implementation
  • 1.5.3 Deviations from the J2EE Specification
  • 1.5.4 Migration Approach
  • 1.5.5 Migration Tool
• 1.6 Using this Guide

2 Oracle Application Server and WebSphere Features

• 2.1 Application Server Comparison
  • 2.1.1 WebSphere
    • 2.1.1.1 Websphere Standard Edition
    • 2.1.1.2 WebSphere Advanced Edition
    • 2.1.1.3 WebSphere Enterprise Edition
  • 2.1.2 Oracle Application Server
• 2.2 Architecture Comparison
  • 2.2.1 WebSphere Components
    • 2.2.1.1 IBM HTTP Server
    • 2.2.1.2 Web Server Plug-in
    • 2.2.1.3 Adminstrative Server
    • 2.2.1.4 Application Server
  • 2.2.2 Oracle Application Server Components and Concepts
    • 2.2.2.1 Oracle HTTP Server
    • 2.2.2.2 OC4J Instance
    • 2.2.2.3 Oracle Process Manager and Notification Server (OPMN)
    • 2.2.2.4 Distributed Configuration Management (DCM)
    • 2.2.2.5 Oracle Application Server Web Cache
    • 2.2.2.6 Oracle Enterprise Manager 10g Application Server Control Console
    • 2.2.2.7 Oracle Application Server Infrastructure
• 2.3 High Availability and Load Balancing
  • 2.3.1 WebSphere Support for High Availability and Load Balancing
    • 2.3.1.1 Clustering in WebSphere
    • 2.3.1.2 Load Balancing in WebSphere
  • 2.3.2 Oracle Application Server Support for High Availability and Load Balancing
    • 2.3.2.1 Oracle Application Server Instance
    • 2.3.2.2 Oracle Application Server Clusters (Middle Tier)
    • 2.3.2.3 OC4J Islands
    • 2.3.2.4 Stateful Session EJB with High Availability Using EJB Clustering
    • 2.3.2.5 Java Object Cache
    • 2.3.2.6 Oracle Web Cache Clusters
    • 2.3.2.7 Oracle Application Server Infrastructure High Availability Solutions
• 2.4 J2EE Support Comparison
  • 2.4.1 WebSphere J2EE Support
  • 2.4.2 Oracle Application Server J2EE Support
• 2.5 Java Development and Deployment Tools
  • 2.5.1 WebSphere Development and Deployment Tools
    • 2.5.1.1 WebSphere Development Tools
    • 2.5.1.2 WebSphere Studio
    • 2.5.1.3 WebSphere Administrative Console
  • 2.5.2 Oracle Application Server Development and Deployment Tools
    • 2.5.2.1 Oracle Application Server Development Tools
    • 2.5.2.2 Assembly Tools
    • 2.5.2.3 Administration Tools

3 Migrating Servlets

• 3.1 Overview of the Java Servlet API
  • 3.1.1 Servlet Lifecycle
    • 3.1.1.1 The init() Method
    • 3.1.1.2 The service() Method
    • 3.1.1.3 The destroy() Method
  • 3.1.2 Session Tracking
    • 3.1.2.1 Cookies
    • 3.1.2.2 URL rewriting
    • 3.1.2.3 Hidden form fields in HTML
  • 3.1.3 The HttpSession object
  • 3.1.4 J2EE Web Applications
    • 3.1.4.1 Web Application Archive (WAR)
    • 3.1.4.2 About the WEB-INF directory
  • 3.1.5 Differences between Servlet 2.0, 2.1 and 2.2
    • 3.1.5.1 Highlights of the Java Servlet API 2.1
    • 3.1.5.2 New Features in the Java Servlet API 2.2
    • 3.1.5.3 Servlet API 2.3
    • 3.1.5.4 Filters and Servlet Chaining
    • 3.1.5.5 Servlet Chains
  • 3.1.6 WebSphere Servlet API Support
    • 3.1.6.1 WebSphere Advanced Edition 3.5.3 Compatibility Mode
    • 3.1.6.2 Full Servlet 2.2 Compliance Mode
    • 3.1.6.3 Servlet 2.2 API Support
    • 3.1.6.4 WebSphere Extensions to the Servlet API
  • 3.1.7 Oracle Application Server Servlet API Suport
  • 3.1.8 Migrating Standalone Servlets to OC4J
    • 3.1.8.1 Sample .servlet file: SnoopServlet.servlet
  • 3.1.9 Migrating Cluster-Aware applications to OC4J
    • 3.1.9.1 Configuring an OC4J Island (in OC4J standalone mode)
    • 3.1.9.2 How OC4J Island Works (in OC4J standalone mode)

4 Migrating Java Server Pages

• 4.1 Overview of Java Server Pages
  • 4.1.1 Parts of a JSP Page
    • 4.1.1.1 Directives
  • 4.1.2 What is a JSP container?
  • 4.1.3 Life Cycle of a JSP Page
• 4.2 WebSphere Support for the JSP API
  • 4.2.1 WebSphere-Specific Features
    • 4.2.1.1 Batch JSP Compiler
    • 4.2.1.2 HTML Template Extensions in JSP 0.91
    • 4.2.1.3 WebSphere Extensions to JSP 1.0
  • 4.2.2 OC4J JSP Features
    • 4.2.2.1 Edge Side Includes for Java (JESI) Tags
    • 4.2.2.2 Web Object Cache Tags
    • 4.2.2.3 Oracle JDeveloper and OC4J JSP Container
• 4.3 Migrating from WebSphere JSP 0.91
  • 4.3.1 The <REPEATGROUP> Tag
• 4.4 Migrating WebSphere Extensions to OC4J
  • 4.4.1 <REPEAT> or <tsx:repeat> tag:

5 Migrating Enterprise Java Beans

• 5.1 Overview of Enterprise JavaBeans
• 5.2 EJB Migration Considerations
• 5.3 EJB Functionality and Components
  • 5.3.1 The EJB Server
  • 5.3.2 EJB container
  • 5.3.3 EJB Specification Roles
    • 5.3.3.1 Enterprise Bean Provider
    • 5.3.3.2 Application Assembler
    • 5.3.3.3 Deployer
    • 5.3.3.4 EJB Server Provider
    • 5.3.3.5 EJB Container Provider
    • 5.3.3.6 System Administrator
  • 5.3.4 Session Beans
    • 5.3.4.1 Stateful Session Beans
    • 5.3.4.2 Stateless Session Beans
  • 5.3.5 Entity Beans
    • 5.3.5.1 Container-managed Persistence (CMP) Entity Beans
    • 5.3.5.2 Bean-managed Persistence (BMP) Entity Beans
    • 5.3.5.3 The Entity Beans Life Cycle
  • 5.3.6 Object-relational (O-R) Mapping and Persistence
  • 5.3.7 EJB Transactions and Concurrency
    • 5.3.7.1 The Java Transaction API(JTA)
    • 5.3.7.2 Transaction Boundaries
    • 5.3.7.3 Client-Managed Transactions
    • 5.3.7.4 Container-Managed Transactions (CMT)
    • 5.3.7.5 Bean Managed Transactions (BMT)
  • 5.3.8 Transaction Isolation and Concurrency
  • 5.3.9 EJB Caching
• 5.4 WebSphere 3.5.x Support for the EJB API
  • 5.4.1 Read-only Methods
  • 5.4.2 EJB Finder-Helper Interface
  • 5.4.3 CMP in WebSphere
  • 5.4.4 Transactions
  • 5.4.5 EJB Inheritance
  • 5.4.6 Distributed Exceptions
  • 5.4.7 Access Beans
  • 5.4.8 Associations Between Enterprise Beans

6 Migrating JDBC Applications

• 6.1 The JDBC API
• 6.2 Database Drivers
  • 6.2.1 The DriverManager Class
    • 6.2.1.1 Registering JDBC Drivers
  • 6.2.2 The DataSource Class
  • 6.2.3 Configuring Data Sources
  • 6.2.4 Configuring OC4J with DB2 Database
  • 6.2.5 Obtaining a Data Source Object
• 6.3 Connection Pooling
  • 6.3.1 Migrating WebSphere Connection Pooling to Oracle Application Server
    • 6.3.1.1 Migrating from WebSphere JDBC 2.0 connection pooling:
• 6.4 IBM Extensions
  • 6.4.1 Data Access Beans
  • 6.4.2 Connection Pool Manager

A Migrating from WebSphere 4.0

• A.1 Feature Differences Between WebSphere Advanced Edition 3.5.3 and 4.0
• A.2 J2EE Specification Differences Between WebSphere Advanced Edition 4.0 and Oracle Application Server
• A.3 Migrating WebSphere 4.0 Servlets to Oracle Application Server
  • A.3.1 WebSphere Specific Servlet Extensions
  • A.3.2 WebSphere-Specific Deployment Descriptors
  • A.3.3 Deprecated 3.5.3 API (Supported in WebSphere 4.0)
• A.4 Migrating WebSphere 4.0 JSPs to Oracle Application Server
• A.5 Migrating WebSphere 4.0 EJBs to Oracle Application Server
• A.6 Other Considerations
  • A.6.1 Dynamic Fragment Cache
  • A.6.2 Data Access and Sources

Index