Expert One-on-One J2EE Design and Development

Rod Johnson

WROX

Programmer to Programmer

Published by

Wiley Publishing, Inc.

10475 Crosspoint Boulevard

Indianapolis, IN 46256

http://www.wiley.com

Copyright © 2003 Wiley Publishing, Inc., Indianapolis, Indiana

Library of Congress Card Number: 2003107067

0-7645-4385-7

Manufactured in the United States of America

10 9 8 7 6 5 4 3 2 1

1B/RQ/QW/QT/IN

No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, scanning or otherwise, except as permitted under Sections 107 or 108 of the 1976 United States Copyright Act, without either the prior written permission of the Publisher, or authorization through payment of the appropriate per-copy fee to the Copyright Clearance Center, 222 Rosewood Drive, Danvers, MA 01923, (978) 750-8400, fax (978) 646-8700. Requests to the Publisher for permission should be addressed to the Legal Department, Wiley Publishing, Inc., 10475 Crosspoint Blvd., Indianapolis, IN 46256, (317) 572-3447, fax (317) 572-4447, E-Mail: permcoordinator@wiley.com.
LIMIT OF LIABILITY/DISCLAIMER OF WARRANTY: WHILE THE PUBLISHER AND AUTHOR HAVE USED THEIR BEST EFFORTS IN PREPARING THIS BOOK, THEY MAKE NO REPRESENTATIONS OR WARRANTIES WITH RESPECT TO THE ACCURACY OR COMPLETENESS OF THE CONTENTS OF THIS BOOK AND SPECIFICALLY DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. NO WARRANTY MAY BE CREATED OR EXTENDED BY SALES REPRESENTATIVES OR WRITTEN SALES MATERIALS. THE ADVICE AND STRATEGIES CONTAINED HEREIN MAY NOT BE SUITABLE FOR YOUR SITUATION. YOU SHOULD CONSULT WITH A PROFESSIONAL WHERE APPROPRIATE. NEITHER THE PUBLISHER NOR AUTHOR SHALL BE LIABLE FOR ANY LOSS OF PROFIT OR ANY OTHER COMMERCIAL DAMAGES, INCLUDING BUT NOT LIMITED TO SPECIAL, INCIDENTAL, CONSEQUENTIAL, OR OTHER DAMAGES.

For general information on our other products and services or to obtain technical support, please contact our Customer Care Department within the U.S. at (800) 762-2974, outside the U.S. at (317) 572-3993 or fax (317) 572-4002.

Wiley also publishes its books in a variety of electronic formats. Some content that appears in print may not be available in electronic books.

Trademarks: Wiley, the Wiley Publishing logo, Wrox, the Wrox logo, the Wrox Programmer to Programmer logo and related trade dress are trademarks or registered trademarks of Wiley in the United States and other countries, and may not be used without written permission. J2EE is a trademark of Sun Microsystems. All other trademarks are the property of their respective owners. Wiley Publishing, Inc., is not associated with any product or vendor mentioned in this book.

Trademark Acknowledgments

Wrox has endeavored to provide trademark information about all the companies and products mentioned in this book by the appropriate use of capitals. However, Wrox cannot guarantee the accuracy of this information.

Credits

Author

Rod Johnson

Commissioning Editor

Craig A. Berry

Technical Editors

Kalpana Grade

Niranjan Jahagirdar

Project Managers

Cilmara Lion

Abbas Rangwala

Author Agent

Nicola Phillips

Index

Adrian Axinte

Andrew Criddle

John Collin

Proof Reader

Chris Smith

Technical Reviewers

Simon Brown

John Carnell

Eric Eicke

Meeraj Kunnumpurath

Todd Lauinger

Eric Paul Schley

Andrew Smith

Tobin Titus

Tom Watkins

David Whitney

Dave Writz

Production Coordinators

Abbie Forletta

Manjiri Karande

Illustrations

Santosh Haware

Manjiri Karande

Cover

Dawn Chellingworth

Natalie O''''''''''''''''Donnell

About the Author

Rod Johnson is an enterprise Java architect specializing in scalable web applications. Rod spent two years designing and delivering a J2EE solution for FT.com, Europe''''''''''''''''s largest business portal, before trekking to Everest Base Camp, parenting a baby, and writing this book. He would like to thank Tristan for providing the toughest of these challenges.

Rod completed an arts degree majoring in music and computer science at the University of Sydney. He obtained a PhD in musicology before returning to software development. With a background in C and C++, Rod has worked with both Java and J2EE since their release. He is currently a member of JSR 154 Expert Group defining the Servlet 2.4 specification.

Rod has contributed several chapters to other Wrox publications including Professional Java Server Programming (J2EE and J2EE 1.3 editions) and Professional Java Server Pages (2nd edition), and is a reviewer for Wrox Press. He has presented at international conferences including Times Java, Mumbai (2001), and his writing has been featured on java.sun.com.

An Australian, Rod is currently living and working in London.

He can be contacted at