ature provides us with an infinite variety of
patterns, from those found in living things: in the foliage of plants,
for example, or in the structure of plants themselves, and in
animalsto those created by the actions of physical laws: the
formation of crystals, or ripples on a pond. It's not surprising therefore that
architectsof buildings or softwarefollow nature's example by making
use of patterns in their own creations.
J2EE Design Patterns
explores the patterns that underlie effective software
designs. As Crawford and Kaplan explain, a design pattern is a way of
describing recurring solutions to common, recurring problems. From a
programming perspective, they say, "a pattern provides a set of
specific interactions that can be applied to generic objects to solve a
Many of the patterns in this book focus on extensibility, scalability,
flexibility, and performance--all areas of concern to J2EE developers.
Some patterns will be new to readers and some will be familiar. But
whether readers have seen the patterns before or not, "J2EE Design
Patterns" is unique in showing readers how to apply them in real J2EE
Chapter 12 discusses the causes of antipatterns, architectural antipatterns, presentation tier
antipatterns, and EJB antipatterns.
Download the PDF of Chapter 12: "J2EE
Reproduced from J2EE Design Patterns by permission of O'Reilly & Associates.
ISBN 0596004273, copyright 2003. All rights reserved.