OReilly C Sharp 3.0 Design Patterns Jan 2008



O’Reilly Media, Inc. | ISBN 13: 978-0-596-52773-0 | English | PDF | 316 Pages | Size: 2.75 MB

Why I Wrote This Book
In 2002, Microsoft Research hosted an international meeting in Cambridge, U.K., to reveal its Rotor system, which would bring C# and .NET to non-Windows programmers. Once back home, writing software, papers, and a book on the topic, I came to realize that we had witnessed the beginning of a real revolution in programming. Since the advent of Java in 1996, programming had become platform-independent: with Java byte-code, programs could run anywhere. This independence, however, extended only to programs written in the Java language. .NET, on the other hand, was language-independent: it allowed programs in different languages to interact, but, up until that day, only on Windows. In the ensuing five years, new platforms have come to support .NET (Mono, for example) and new hardware has come to support Intel chips (on which Windows runs). The result is that .NET now runs almost anywhere. Consequently, expertise in C# programming is a very transportable skill to acquire. But C# keeps improving as a language, and we are currently at the beginning of a new leapforward into C# 3.0, which offers enormous benefits in terms of productivity and ease of programming. Having already written an introductory C# text in 2003,* I realized that the benefits of the new features announced now in 2007, four years later, would be felt at a much more advanced level of software development. I wanted to write a second book that introduced C# 3.0 to developers who already knew the basic language—but what would be the formula that could introduce a language and address a reader’s needs of precision, examples, and a heavy dose of reality? Enter design patterns. Design patterns encapsulate common, accepted, and proven ways of using language features together. They form a level of discourse at a higher plane, and they exercise and promote good programming practices. However, there is an element of unreality surrounding design patterns, and one gets the impression that they are more talked about than used. I wanted to change that and make design
patterns really accessible to ordinary programmers, using the best language for them: C# 3.0. The result is this book.

Who This Book Is For
If you are a programmer who loves your code, for whom every line has a precise meaning and every feature has a correct place, this book is for you. It will help you with your primary job of making your code correct, elegant, extensible, and efficient. If you serve the business ends of your organization by focusing on the quality of your code, you need a book like C# 3.0 Design Patterns. Knowledge about design patterns is also a big stepforward for those working upfrom low-level programmers to software engineers and architects. Through reading this book, you will acquire skills in:
• Programming design patterns
• Basic UML modeling notation for representing patterns
• Selecting patterns appropriate for given scenarios and comparing alternative implementations
• Using advanced language features of C# 3.0 to realize patterns efficiently and elegantly
Although not written as a textbook, C# 3.0 Design Patterns could fit in very well for a mid-degree course on design patterns or advanced programming. The diagrams and code for all the patterns and associated examples and case studies in this book can be found on the book’s web site,