Preface

This guide provides information on how to migrate from WebSphere to Oracle Application Server. This preface contains the following topics:

• Audience

• Documentation Accessibility

• Organization

• Related Documents

• Conventions

Audience

Oracle Application Server Migrating from WebSphere is intended for administrators, developers, and others who are responsible for migrating from WebSphere to Oracle Application Server.

Documentation Accessibility

Our goal is to make Oracle products, services, and supporting documentation accessible, with good usability, to the disabled community. To that end, our documentation includes features that make information available to users of assistive technology. This documentation is available in HTML format, and contains markup to facilitate access by the disabled community. Accessibility standards will continue to evolve over time, and Oracle is actively engaged with other market-leading technology vendors to address technical obstacles so that our documentation can be accessible to all of our customers. For more information, visit the Oracle Accessibility Program Web site at

http://www.oracle.com/accessibility/

Accessibility of Code Examples in Documentation

Screen readers may not always correctly read the code examples in this document. The conventions for writing code require that closing braces should appear on an otherwise empty line; however, some screen readers may not always read a line of text that consists solely of a bracket or brace.

Accessibility of Links to External Web Sites in Documentation

This documentation may contain links to Web sites of other companies or organizations that Oracle does not own or control. Oracle neither evaluates nor makes any representations regarding the accessibility of these Web sites.

TTY Access to Oracle Support Services

Oracle provides dedicated Text Telephone (TTY) access to Oracle Support Services within the United States of America 24 hours a day, seven days a week. For TTY support, call 800.446.2398.

Organization

The following chapters make up this guide:

Chapter 1, "Overview"

This chapter provides you with an overview of the J2EE platform, application servers, and OracleAS. In addition, it provides you with an understanding of what is involved in migrating from WebSphere 3.5.3 to OracleAS.

Chapter 2, "Comparison of Oracle Application Server and WebSphere Features"

This chapter provides a comparison between Oracle Corporation's implementation of Sun Microsystems' J2EE platform and component specifications and that of IBM's.

Chapter 3, "Migrating Servlets"

This chapter provides you with an overview of Sun Microsystems' Java Servlet technology and its implementation in OracleAS. In addition, the issues involved in migrating servlets from WebSphere 3.5.3 to OracleAS are presented.

Chapter 4, "Migrating JSPs"

This chapter provides you with an overview of Sun Microsystems' JavaServer Pages (JSP) technology and its implementation in OracleAS. In addition, the issues involved in migrating JSP pages from WebSphere 3.5.3 to OracleAS are presented.

Chapter 5, "Migrating Enterprise Java Beans"

This chapter provides you with an overview of Sun Microsystems' Enterprise JavaBeans (EJB) architecture and its implementation in OracleAS. In addition, the issues involved in migrating EJB components from WebSphere 3.5.3 to OracleAS are presented.

Chapter 6, "Migrating JDBC Applications"

This chapter provides you with an overview of Sun Microsystems' JDBC technology and its implementation in OracleAS. In addition, the issues involved in migrating database access code from WebSphere 3.5.3 to OracleAS are presented.

Appendix A, "Migrating from WebSphere 4.0"

This chapter provides the migration strategy and tips for migrating applications from WebSphere Advanced Edition 4.0 to Oracle Application Server.

Related Documents

For more information, see these Oracle resources:

• Oracle Application Server Documentation Library

• Oracle Application Server Platform-Specific Documentation on Oracle Application Server Disk 1

Printed documentation is available for sale in the Oracle Store at

http://oraclestore.oracle.com/

To download free release notes, installation documentation, white papers, or other collateral, please visit the Oracle Technology Network (OTN). You must register online before using OTN; registration is free and can be done at

http://otn.oracle.com/membership/

If you already have a username and password for OTN, then you can go directly to the documentation section of the OTN Web site at

http://otn.oracle.com/documentation/

For additional information, see:

• http://ibm.com/ for more information on WebSphere

• http://java.sun.com/ for more information on J2EE

Conventions

The following text conventions are used in this document:

Convention	Meaning
boldface	Boldface type indicates graphical user interface elements associated with an action, or terms defined in text or the glossary.
italic	Italic type indicates book titles, emphasis, or placeholder variables for which you supply particular values.
monospace	Monospace type indicates commands within a paragraph, URLs, code in examples, text that appears on the screen, or text that you enter.