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Design Patterns in Ruby ReviewWarning: This book is not a reference!!!
Well, it could be but it probably won't need to be as each concept is explained so well that you will remember when to apply this pattern or that pattern for every situation. The author is engaging and funny making this quite a book turner for a technical book. I almost read half the book on the 2 hour commuter flight between Perth and Karatha. Every chapter starts with a little anectode about the author's past life events and how these are related to the use of a particular pattern. The examples are well thought out and the author also discusses Ruby specific implementation details as well as providing valuable insights into how each pattern is used in the existing Ruby codebase.
I come from a Python/C/C++/Java background and have been tinkering around with ruby for a while but without really "getting it" and understanding what the fuss was about. The same could be said about design patterns. After reading this book I have finally grokked, not only Ruby but the value and power of design patterns. I can now say that I truly understand exactly why there is such a hype about Ruby. The whole method_missing thing, singleton support, ability to clone classes, etc. This language really represents the future of programming - today - and this book delivers on its intent.
This is simply one of the best technical books that I have read in a long time and I thoroughly recommend it, especially for an intermediate Ruby programmer and even those who know OO concepts and principles but may be new to Ruby.
Design Patterns in Ruby OverviewPraise for Design Patterns in Ruby
"Design Patterns in Ruby documents smart ways to resolve many problems that Ruby developers commonly encounter. Russ Olsen has done a great job of selecting classic patterns and augmenting these with newer patterns that have special relevance for Ruby. He clearly explains each idea, making a wealth of experience available to Ruby developers for their own daily work."
—Steve Metsker, Managing Consultant with Dominion Digital, Inc.
"This book provides a great demonstration of the key 'Gang of Four' design patterns without resorting to overly technical explanations. Written in a precise, yet almost informal style, this book covers enough ground that even those without prior exposure to design patterns will soon feel confident applying them using Ruby. Olsen has done a great job to make a book about a classically 'dry' subject into such an engaging and even occasionally humorous read."
—Peter Cooper
"This book renewed my interest in understanding patterns after a decade of good intentions. Russ picked the most useful patterns for Ruby and introduced them in a straightforward and logical manner, going beyond the GoF's patterns. This book has improved my use of Ruby, and encouraged me to blow off the dust covering the GoF book."
—Mike Stok
"Design Patterns in Ruby is a great way for programmers from statically typed objectoriented languages to learn how design patterns appear in a more dynamic, flexible language like Ruby."
—Rob Sanheim, Ruby Ninja, Relevance
Most design pattern books are based on C++ and Java. But Ruby is different—and the language's unique qualities make design patterns easier to implement and use. In this book, Russ Olsen demonstrates how to combine Ruby's power and elegance with patterns, and write more sophisticated, effective software with far fewer lines of code.
After reviewing the history, concepts, and goals of design patterns, Olsen offers a quick tour of the Ruby language—enough to allow any experienced software developer to immediately utilize patterns with Ruby. The book especially calls attention to Ruby features that simplify the use of patterns, including dynamic typing, code closures, and "mixins" for easier code reuse.
Fourteen of the classic "Gang of Four" patterns are considered from the Ruby point of view, explaining what problems each pattern solves, discussing whether traditional implementations make sense in the Ruby environment, and introducing Ruby-specific improvements. You'll discover opportunities to implement patterns in just one or two lines of code, instead of the endlessly repeated boilerplate that conventional languages often require.
Design Patterns in Ruby also identifies innovative new patterns that have emerged from the Ruby community. These include ways to create custom objects with metaprogramming, as well as the ambitious Rails-based "Convention Over Configuration" pattern, designed to help integrate entire applications and frameworks.
Engaging, practical, and accessible, Design Patterns in Ruby will help you build better software while making your Ruby programming experience more rewarding.
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