C# - Gang Of Four - Design Patterns, Elements Of Reusable Object Oriented Software

551 Pages·1998·5.55 MB·English

by  Erich Gamma

Design Patterns CD
http://lci.cs.ubbcluj.ro/~raduking/Books/Design%20Patterns/ [21/08/2002 19:01:33]
Table of Contents
Preface to CD
Preface to Book
Foreword
Guide to Readers
Introduction
What Is a Design Pattern?
l
Design Patterns in Smalltalk MVC
l
Describing Design Patterns
l
The Catalog of Design Patterns
l
Organizing the Catalog
l
How Design Patterns Solve Design Problems
l
How to Select a Design Pattern
l
How to Use a Design Pattern
l
A Case Study: Designing a Document Editor
Design Problems
l
Document Structure
l
Formatting
l
Embellishing the User Interface
l
Supporting Multiple Look-and-Feel Standards
l
Supporting Multiple Window Systems
l
User Operations
l
Spelling Checking and Hyphenation
l
Summary
l
Design Pattern Catalog
Creational Patterns
Abstract Factory
l
Builder
l
Factory Method
l
Prototype
l
Singleton
l
Discussion of Creational Patterns
l
Structural Patterns
http://lci.cs.ubbcluj.ro/~raduking/Books/Design%20Patterns/contfs.htm (1 of 3) [21/08/2002 19:01:49]
Table of Contents
Adapter
l
Bridge
l
Composite
l
Decorator
l
Facade
l
Flyweight
l
Proxy
l
Discussion of Structural Patterns
l
Behavioral Patterns
Chain of Responsibility
l
Command
l
Interpreter
l
Iterator
l
Mediator
l
Memento
l
Observer
l
State
l
Strategy
l
Template Method
l
Visitor
l
Discussion of Behavioral Patterns
l
Conclusion
What to Expect from Design Patterns
l
A Brief History
l
The Pattern Community
l
An Invitation
l
A Parting Thought
l
Glossary
Guide to Notation
Class Diagram
l
Object Diagram
l
Interaction Diagram
l
Foundation Classes
List
l
Iterator
l
ListIterator
l
Point
l
Rect
l
http://lci.cs.ubbcluj.ro/~raduking/Books/Design%20Patterns/contfs.htm (2 of 3) [21/08/2002 19:01:49]
Table of Contents
Bibliography
Index
Preface to CD
http://lci.cs.ubbcluj.ro/~raduking/Books/Design%20Patterns/contfs.htm (3 of 3) [21/08/2002 19:01:49]
Design Patterns CD
Frequently Asked Questions (and Their
Answers)
How do I display the contents page of the Design Patterns CD?
Go back to the main screen and click on the word "Contents." This will bring up the contents
page that will let you navigate through the rest of the book.
How do I link my documents to the CD?
Because the Design Patterns CD uses framesets to provide important navigational tools, any
hyperlinks you make to point to the CD should invoke the appropriate frameset file, not just
the chapter file itself.
The best method for obtaining the appropriate URL for use in your own Web page is to use one of the
built-in navigational aids (such as the top banner or bottom pattern menu). However, rather than
clicking the left mouse button, use the right button to display the menu of extended choices. Then
select "Copy Link Location" in Netscape or "Copy Shortcut" in Internet Explorer. Put that link onto
your cut buffer. You can now paste the URL into your own HTML document as an attribute to the
anchor (<A>) tag.
Which browsers can I use with the Design Patterns CD?
The Design Patterns CD works best with Netscape Navigator on all platforms we have tested,
including MS Windows, Unix, and Macintosh. The Design Patterns CD also works with
Microsoft Internet Explorer on the MS Windows platform. Although it should be possible to
use other browsers that support both Java and JavaScript, we have not tested the Design
Patterns CD on those systems and do not provide technical support should problems occur. We
strongly recommend that you use one of these browsers to view the Design Patterns CD.
My computer resolution is 800x600. Is it okay if I use the version optimized for 640x480?
Yes, the low-res and high-res versions of the CD contain exactly the same information. The
only difference is that the formatting is done in the way that we believe will look best on high-
and low-resolution systems. If you prefer the look of the low-res screens on your high-res
system, you should not experience any problems. The reverse is not true, however. Using the
800x600 version on a 640x480 screen may cause you to lose information and is not
recommended.
Why do the applet contents disappear when I iconify and then de-iconify the search applet in
Communicator 4.0/Win95?
There is a bug in Netscape's Java Virtual Machine for Communicator 4.0 that causes many
java applets to crash when they are iconified to the Windows 95 toolbar. Iconifying the search
applet under Communicator 4.0 on Windows 95 will always result in a loss of search contents.
If you encounter this behavior, simply close the applet and click on the Search button in the
main frameset to restore it.
http://lci.cs.ubbcluj.ro/~raduking/Books/Design%20Patterns/faq.htm (1 of 2) [21/08/2002 19:01:57]
Design Patterns CD
Why doesn't an exhaustive search always return the same results as an indexed search?
There are two things that can cause the index search and exhaustive search to return different
results.
The first is that the exhaustive search is done over the raw HMTL so that if you the phrase
"<B>describing</B> design patterns" is found in the HTML source, the exhaustive search
won't match it. The indexer ignores the HTML tags so that it will match this phrase.
The second is that an indexed search matches any section that contains all of the words entered
in any order and with any words in-between. So for example this sentence in the conclusion
matches on the indexed search: "Moreover, describing a system in terms of the design
patterns..." The exhaustive search is much more strict; the words must be in the correct order,
separated only by whitespace.
How can I obtain updates, patches and news about the Design Patterns CD?
Addison Wesley Longman maintains a web page for the Design Patterns CD at
http://www.awl.com/cseng/titles/0-201-63498-8/. Updates, ancillary materials and all other
information will be made available from this site.
http://lci.cs.ubbcluj.ro/~raduking/Books/Design%20Patterns/faq.htm (2 of 2) [21/08/2002 19:01:57]
Related Books
Design Patterns: Elements of Reusable Object-Oriented Software
Erich Gamma, Richard Helm, Ralph Johnson, and John Vlissides
These four top-notch authors show how object-oriented systems exhibit recurring patterns and
structures of objects that solve particular design problems, allowing designers to reuse successful
designs and architectures without having to rediscover the design solutions. Central to this book is a
catalog of 23 design patterns that have seen successful practical application and are representative of
good object-oriented design. 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 in a larger design.
ISBN 0-201-63442-2 Hardback 416 pages ©1995
The Design Patterns Smalltalk Companion
Sherman Alpert, Kyle Brown, and Bobby Woolf
In this new book, intended as a language companion to Design Patterns, noted Smalltalk and design
patterns experts implement the 23 design patterns using Smalltalk code. Using the same successful
format as Design Patterns, this book tailors the topic of design patterns to the Smalltalk
programmer—no other book offers this. The authors have worked closely with the Design Patterns
authors to ensure that this companion volume is held to the same high quality standards that made the
original a bestseller. The full source code will be available on Addison-Wesley's web site.
ISBN 0-201-18462-1 Hardback 448 pages ©1998
Analysis Patterns: Reusable Object Models
Martin Fowler
Analysis Patterns is an important contribution to the growing patterns literature. It
captures profound object modeling expertise from different domains as a catalog of
patterns. These domain patterns will help you solve challenging modeling problems
across different domains.
—Erich Gamma, Technical Director, Object Technology International.
Martin Fowler shares with you his wealth of object modeling experience and his keen eye for solving
repeating problems and transforming the solutions into reusable models. Analysis Patterns provides a
catalog of patterns that have emerged in a wide range of domains, including trading, measurement,
accounting, and organizational relationships.
http://lci.cs.ubbcluj.ro/~raduking/Books/Design%20Patterns/related.htm (1 of 3) [21/08/2002 19:02:12]
Related Books
ISBN 0-201-89542-0 Hardback 672 pages ©1997
Concurrent Programming in Java™: Design Principles and Patterns
Doug Lea
Serious Java programmers interested in using this rich language to the fullest need to master thread
programming to significantly enhance their ability to create high-performance Java applications.
Taking a design pattern approach, this book offers numerous standard design techniques for creating
and implementing Java structures that solve common concurrent programming challenges. You will
learn how to initiate, control, and coordinate concurrent activities using the Java constructs
java.lang.Thread, the keywords synchronized and volatile, and the methods wait, notify, and
notifyAll. In addition, you will find detailed coverage of all aspects of thread programming, including
such topics as containment and synchronization, deadlocks and conflicts, state-dependent action,
control, handling user services, flow, and coordinated interaction. Code examples throughout help
clarify the subtleties of the concurrent programming concepts discussed.
ISBN 0-201-69581-2 Paperback 352 pages ©1997
Pattern Languages of Program Design
Edited by James O. Coplien and Douglas C. Schmidt
This book brings you the expertise and creativity of leaders in the design patterns field, including
James Coplien, Douglas Schmidt, and Ward Cunningham. It explores many facets of design patterns
and reveals how useful this technique can be in a wide range of fields and industries—client/server
programming, software design, distributed and parallel processing, financial services, software reuse,
and interface design.
ISBN 0-201-60734-4 Paperback 576 pages ©1995
Pattern Languages of Program Design 2
John M. Vlissides, James O. Coplien, and Norman L. Kerth
This volume, with contributions from the biggest names in the patterns community, is the second in a
series documenting patterns for professional software developers. This new collection not only reveals
the secrets of great software professionals, but also makes those secrets easy to apply.
ISBN 0-201-89527-7 Paperback 624 pages ©1996
Pattern Languages of Program Design 3
http://lci.cs.ubbcluj.ro/~raduking/Books/Design%20Patterns/related.htm (2 of 3) [21/08/2002 19:02:12]
Related Books
Robert Martin, Dirk Riehle, and Frank Buschmann
This third volume is the first to include international submissions, giving the editors even more high-
quality essays from which to choose. This new collection builds upon the popular appeal of the first
two volumes, keeping developers up-to-date on the latest uses and implementations of patterns.
ISBN 0-201-31011-2 Paperback 688 pages ©1998
http://lci.cs.ubbcluj.ro/~raduking/Books/Design%20Patterns/related.htm (3 of 3) [21/08/2002 19:02:12]
Preface to CD
As we were writing Design Patterns, we knew the patterns we were describing had value because they
had proven themselves in many different contexts. Our hope was that other software engineers would
benefit from these patterns as much as we had.
Now, three years after its debut, we find ourselves both grateful and thrilled by how the book has been
received. Lots of people use it. Many tell us the patterns have helped them design and build better
systems. Many others have been inspired to write their own patterns, and the pool of patterns is growing.
And many have commented on what might be improved about the book and what they would like to see
in the future.
A recurring comment in all the feedback has been how well-suited the book is to hypertext. There are
numerous cross-references, and chasing references is something a computer can do very well. Since
much of the software development process takes place on computers, it would be natural to have a book
like ours as an on-line resource. Observations like these got us excited about the potential of this
medium. So when Mike Hendrickson approached us about turning the book into a CD-ROM, we jumped
at the chance.
Two years and several megabytes of e-mail later, we're delighted that you can finally obtain this edition,
the Design Patterns CD, and put its unique capabilities to work. Now you can access a pattern from your
computer even when someone has borrowed your book. You can search the text for key words and
phrases. It's also considerably easier to incorporate parts of it in your own on-line documentation. And if
you travel with a notebook computer, you can keep the book handy without lugging an extra two pounds
of paper.
Hypertext is a relatively new publishing venue, one we are learning to use just like everyone else. If you
have ideas on how to improve this edition, please send them to [email protected]. If you
have questions or suggestions concerning the patterns themselves, send them to the gang-of-4-
[email protected] mailing list. (To subscribe, send e-mail to [email protected] with the
subject "subscribe".) This list has quite a few readers, and many of them can answer questions as well as
we can—and usually a lot faster! Also, be sure to check out the Patterns Home Page at
http://hillside.net/patterns/. There you'll find other books and mailing lists on patterns, not to mention
conference information and patterns published on-line.
This CD entailed considerable design and implementation work. We are indebted to Mike Hendrickson
and the team at Addison-Wesley for their on-going encouragement and support. Jeff Helgesen, Jason
Jones, and Daniel Savarese garner many thanks for their development effort and for patience despite
what must appear to have been our insatiable appetite for revision. A special acknowledgment is due
IBM Research, which continues to underwrite much of this activity. We also thank the reviewers,
including Robert Brunner, Sandeep Dani, Bob Koss, Scott Meyers, Stefan Schulz, and the Patterns
Discussion Group at the University of Illinois Urbana-Champaign. Their advice led to at least one major
redesign and several minor ones.
Finally, we thank all who have taken time to comment on Design Patterns. Your feedback has been
invaluable to us as we strive to better our understanding and presentation of this material.
Zurich, Switzerland E.G.
Sydney, Australia R.H.
Urbana, Illinois R.J.
http://lci.cs.ubbcluj.ro/~raduking/Books/Design%20Patterns/preffs.htm (1 of 2) [21/08/2002 19:02:40]