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Design Patterns: Elements of Reusable Object-Oriented Software
- By Erich Gamma, Richard Helm, Ralph Johnson, John Vlissides
- Published Oct 31, 1994 by Addison-Wesley Professional. Part of the Addison-Wesley Professional Computing Series series.
Description
- Copyright 1995
- Dimensions: 7-3/8" x 9-1/4"
- Pages: 416
- Edition: 1st
- Book
- ISBN-10: 0-201-63361-2
- ISBN-13: 978-0-201-63361-0
Capturing a wealth of experience about the design of object-oriented software, four top-notch designers present a catalog of simple and succinct solutions to commonly occurring design problems. Previously undocumented, these 23 patterns allow designers to create more flexible, elegant, and ultimately reusable designs without having to rediscover the design solutions themselves.
The authors begin by describing what patterns are and how they can help you design object-oriented software. They then go on to systematically name, explain, evaluate, and catalog recurring designs in object-oriented systems. With Design Patterns as your guide, you will learn how these important patterns fit into the software development process, and how you can leverage them to solve your own design problems most efficiently.
Each pattern describes the circumstances in which it is applicable, when it can be applied in view of other design constraints, and the consequences and trade-offs of using the pattern within a larger design. All patterns are compiled from real systems and are based on real-world examples. Each pattern also includes code that demonstrates how it may be implemented in object-oriented programming languages like C++ or Smalltalk.
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Extras
Related Articles
A Look Back: Why We Wrote Design Patterns: Elements of Reusable Object-Oriented Software
An Interview with John deVadoss on Patterns and Practices at Microsoft
Brian Foote on the 15th Anniversary of Design Patterns
Design Patterns 15 Years Later: An Interview with Erich Gamma, Richard Helm, and Ralph Johnson
Erik M. Buck on the 15th Anniversary of Design Patterns
Gerard Meszaros on the 15th Anniversary of Design Patterns
Grady Booch on Design Patterns, OOP, and Coffee
John Crupi on the 15th Anniversary of Design Patterns
Josh Bloch on the 15th Anniversary of Design Patterns
Linda Rising on the 15th Anniversary of Design Patterns
Marshall Cline on the 15th Anniversary of Design Patterns
On the 20th Anniversary of Design Patterns
Rebecca Wirfs-Brock on the 15th Anniversary of Design Patterns
Russ Olsen on the 15th Anniversary of Design Patterns
Steve Vinoski on the 15th Anniversary of Design Patterns
Thomas Erl on the 15th Anniversary of Design Patterns
Why Design Patterns Still Matter
William Wake on the 15th Anniversary of Design Patterns
Sample Content
Excerpts
Design Patterns: Abstract Factory
Design Patterns: Chain of Responsibility
Table of Contents
- 1. Introduction.
- 2. A Case Study: Designing a Document Editor.
- 3. Creational Patterns.
- 4. Structural Pattern.
- 5. Behavioral Patterns.
- 6. Conclusion.
- Appendix A: Glossary.
- Appendix B: Guide to Notation.
- Appendix C: Foundation Classes.
- Bibliography.
- Index.
Preface
This book isn't an introduction to object-oriented technology or design. Many books already do a good job of that. This book assumes you are reasonably proficient in at least one object-oriented programming language, and you should have some experience in object-oriented design as well. You definitely shouldn't have to rush to the nearest dictionary the moment we mention "types" and"polymorphism," or "interface" as opposed to "implementation" inheritance.
On the other hand, this isn't an advanced technical treatise either. It's a book of design patterns that describes simple and elegant solutions to specific problems in object-oriented software design. Design patterns capture solutions that have developed and evolved over time. Hence they aren't the designs people They reflect untold redesign and recoding as developers have struggled for greater reuse and flexibility in their software.Design patterns capture these solutions in a succinct and easily applied form.
The design patterns require neither unusual language features nor amazing programming tricks with which to astound your friends and managers. All can be implemented in standard object-oriented languages, though they might take a little more work than ad hoc solutions. But the extra effort invariably pays dividends in increased flexibility and reusability.
Once you understand the design patterns and have had an "Aha!" (and not just a "Huh?") experience with them, you won't ever think about object-oriented design in the same way. You'll have insights that can make your own designs more flexible, modular, reusable, and understandable - which is why you're interested in object-oriented technology in the first place, right?
A word of warning and encouragement: Don't worry if you don't understand this book completely on the first reading. We didn't understand it all on the first writing! Remember that this isn't a book to read once and put on a shelf. We hope you'll find yourself referring to it again and again for design insights and for inspiration.
This book has had a long gestation. It has seen four countries, three of its authors' marriages, and the birth of two (unrelated) offspring.Many people have had a part in its development. Special thanks are due Bruce Andersen, Kent Beck, and Andre Weinand for their inspiration and advice. We also thank those who reviewed drafts of the manuscript: Roger Bielefeld, Grady Booch, Tom Cargill, Marshall Cline, Ralph Hyre, Brian Kernighan, Thomas Laliberty, Mark Lorenz, Arthur Riel, Doug Schmidt, Clovis Tondo, Steve Vinoski, and Rebecca Wirfs-Brock. We are also grateful to the team at Addison-Wesley for their help and patience: Kate Habib, Tiffany Moore, Lisa Raffaele, Pradeepa Siva, and John Wait. Special thanks to Carl Kessler, Danny Sabbah, and Mark Wegman at IBM Research for their unflagging support of this work.
Last but certainly not least, we thank everyone on the Internet and points beyond who commented on versions of the patterns, offered encouraging words, and told us that what we were doing was worthwhile. These people include but are not limited to Ran Alexander, Jon Avotins, Steve Berczuk, Julian Berdych, Matthias Bohlen, John Brant, Allan Clarke, Paul Chisholm, Jens Coldewey, Dave Collins, Jim Coplien, Don Dwiggins, Gabriele Elia, Doug Felt, Brian Foote, Denis Fortin, Ward Harold, Hermann Hueni, Nayeem Islam, Bikramjit Kalra, Paul Keefer, Thomas Kofler, Doug Lea, Dan LaLiberte, James Long, Ann Louise Luu, Pundi Madhavan, Brian Marick, Robert Martin, Dave McComb, Carl McConnell, Christine Mingins, Hanspeter Mossenbock, Eric Newton, Marianne Ozcan, Roxsan Payette, Larry Podmolik, George Radin, Sita Ramakrishnan, Russ Ramirez, Dirk Riehle, Bryan Rosenburg, Aamod Sane, Duri Schmidt, Robert Seidl, Xin Shu, and Bill Walker.
We don't consider this collection of design patterns complete and static; it's more a recording of our current thoughts on design. We welcome comments on it, whether criticisms of our examples, references and known uses we've missed, or design patterns we should have included. You can write us care of Addison-Wesley, or send electronic mail to design-patterns@cs.uiuc.edu. You can also obtain softcopy for the code in the Sample Code sections by sending the message "send design pattern source" to design-patterns-source@cs.uiuc.edu.
Mountain View, California - E.G.
Montreal, Quebec - R.H.
Urbana, Illinois - R.J.
Hawthorne, New York - J.V.
August 1994
0201633612P04062001
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