Refactoring Author Martin Fowler
ISBN-10 9780133065268
Release 2012-03-09
Pages 455
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As the application of object technology--particularly the Java programming language--has become commonplace, a new problem has emerged to confront the software development community. Significant numbers of poorly designed programs have been created by less-experienced developers, resulting in applications that are inefficient and hard to maintain and extend. Increasingly, software system professionals are discovering just how difficult it is to work with these inherited, "non-optimal" applications. For several years, expert-level object programmers have employed a growing collection of techniques to improve the structural integrity and performance of such existing software programs. Referred to as "refactoring," these practices have remained in the domain of experts because no attempt has been made to transcribe the lore into a form that all developers could use. . .until now. In Refactoring: Improving the Design of Existing Code, renowned object technology mentor Martin Fowler breaks new ground, demystifying these master practices and demonstrating how software practitioners can realize the significant benefits of this new process. With proper training a skilled system designer can take a bad design and rework it into well-designed, robust code. In this book, Martin Fowler shows you where opportunities for refactoring typically can be found, and how to go about reworking a bad design into a good one. Each refactoring step is simple--seemingly too simple to be worth doing. Refactoring may involve moving a field from one class to another, or pulling some code out of a method to turn it into its own method, or even pushing some code up or down a hierarchy. While these individual steps may seem elementary, the cumulative effect of such small changes can radically improve the design. Refactoring is a proven way to prevent software decay. In addition to discussing the various techniques of refactoring, the author provides a detailed catalog of more than seventy proven refactorings with helpful pointers that teach you when to apply them; step-by-step instructions for applying each refactoring; and an example illustrating how the refactoring works. The illustrative examples are written in Java, but the ideas are applicable to any object-oriented programming language.


Refactoring Author Jay Fields
ISBN-10 9780321604170
Release 2009-10-15
Pages 480
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The Definitive Refactoring Guide, Fully Revamped for Ruby With refactoring, programmers can transform even the most chaotic software into well-designed systems that are far easier to evolve and maintain. What’s more, they can do it one step at a time, through a series of simple, proven steps. Now, there’s an authoritative and extensively updated version of Martin Fowler’s classic refactoring book that utilizes Ruby examples and idioms throughout–not code adapted from Java or any other environment. The authors introduce a detailed catalog of more than 70 proven Ruby refactorings, with specific guidance on when to apply each of them, step-by-step instructions for using them, and example code illustrating how they work. Many of the authors’ refactorings use powerful Ruby-specific features, and all code samples are available for download. Leveraging Fowler’s original concepts, the authors show how to perform refactoring in a controlled, efficient, incremental manner, so you methodically improve your code’s structure without introducing new bugs. Whatever your role in writing or maintaining Ruby code, this book will be an indispensable resource. This book will help you Understand the core principles of refactoring and the reasons for doing it Recognize “bad smells” in your Ruby code Rework bad designs into well-designed code, one step at a time Build tests to make sure your refactorings work properly Understand the challenges of refactoring and how they can be overcome Compose methods to package code properly Move features between objects to place responsibilities where they fit best Organize data to make it easier to work with Simplify conditional expressions and make more effective use of polymorphism Create interfaces that are easier to understand and use Generalize more effectively Perform larger refactorings that transform entire software systems and may take months or years Successfully refactor Ruby on Rails code

Refactoring in Large Software Projects

Refactoring in Large Software Projects Author Martin Lippert
ISBN-10 9780470858936
Release 2006-05-01
Pages 286
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Large Refactorings looks at methods of establish design improvements as an important and independent activity during development of software, and will help to ensure that software continues to adapt, improve and remain easy to read and modify without altering its observable behaviour. It provides real-world experience from real refactored projects and shows how to refactor software to ensure that it is efficient, fresh and adaptable.

Refactoring with Microsoft Visual Studio 2010

Refactoring with Microsoft Visual Studio 2010 Author Peter Ritchie
ISBN-10 9781849680110
Release 2010-07-26
Pages 372
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Refactor with Microsoft Visual Studio 2010 and evolve your software system to support new and ever-changing requirements by updating your C♯ code base with patterns and principles with this book and eBook.

Refactoring to Patterns

Refactoring to Patterns Author Joshua Kerievsky
ISBN-10 0321630017
Release 2004-08-05
Pages 400
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In 1994, Design Patterns changed the landscape of object-oriented development by introducing classic solutions to recurring design problems. In 1999, Refactoring revolutionized design by introducing an effective process for improving code. With the highly anticipated Refactoring to Patterns , Joshua Kerievsky has changed our approach to design by forever uniting patterns with the evolutionary process of refactoring. This book introduces the theory and practice of pattern-directed refactorings: sequences of low-level refactorings that allow designers to safely move designs to, towards, or away from pattern implementations. Using code from real-world projects, Kerievsky documents the thinking and steps underlying over two dozen pattern-based design transformations. Along the way he offers insights into pattern differences and how to implement patterns in the simplest possible ways. Coverage includes: A catalog of twenty-seven pattern-directed refactorings, featuring real-world code examples Descriptions of twelve design smells that indicate the need for this book’s refactorings General information and new insights about patterns and refactoring Detailed implementation mechanics: how low-level refactorings are combined to implement high-level patterns Multiple ways to implement the same pattern–and when to use each Practical ways to get started even if you have little experience with patterns or refactoring Refactoring to Patterns reflects three years of refinement and the insights of more than sixty software engineering thought leaders in the global patterns, refactoring, and agile development communities. Whether you’re focused on legacy or “greenfield” development, this book will make you a better software designer by helping you learn how to make important design changes safely and effectively.

Refactoring in Ruby

Refactoring in Ruby Author William C. Wake
ISBN-10 0321647904
Release 2009-10-15
Pages 288
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The First Hands-On, Practical, All-Ruby Refactoring Workbook! Refactoring—the art of improving the design of existing code—has taken the world by storm. So has Ruby. Now, for the first time, there’s a refactoring workbook designed from the ground up for the dynamic Ruby language. Refactoring in Ruby gives you all the realistic, hands-on practice you need to refactor Ruby code quickly and effectively. You’ll discover how to recognize “code smells,” which signal opportunities for improvement, and then perfect your program’s design one small, safe step at a time. The book shows you when and how to refactor with both legacy code and during new test-driven development, and walks you through real-world refactoring in detail. The workbook concludes with several applications designed to help practice refactoring in realistic domains, plus a handy code review checklist you’ll refer to again and again. Along the way, you’ll learn powerful lessons about designing higher quality Ruby software—lessons that will enable you to experience the joy of writing consistently great code. Refactoring in Ruby will help you Recognize why poor code design occurs, so you can prevent it from occurring in your own code Master better design techniques that lead to more efficient, reliable, and maintainable software Fix code that’s too long, large, or difficult to follow Ferret out duplication, and express each idea “once and only once” Recognize missing or inadequately formed classes Simplify overly complex relationships between classes and their subclasses Achieve the right balance of responsibilities among objects Make your code easier to test and change Cope with incomplete library modules, and fix runaway dependencies Learn the next steps to take after you refactor

Professional Refactoring in Visual Basic

Professional Refactoring in Visual Basic Author Danijel Arsenovski
ISBN-10 9780470372548
Release 2008-03-31
Pages 517
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In this one-of-a-kind book, Microsoft MVP Danijel Arsenovski shows you how to utilize the power of refactoring to improve the design of your existing code and become more efficient and productive. You?ll discover how to perform unit testing, refactoring to patterns, and refactoring to upgrade legacy Visual Basic code. As you progress through the chapters, you?ll build a prototype application from scratch as Arsenovski walks you step-by-step through each process while offering expert coding tips.

Professional Refactoring in C ASP NET

Professional Refactoring in C    ASP NET Author Danijel Arsenovski
ISBN-10 9780470503171
Release 2009-04-08
Pages 500
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Professional Refactoring in C ASP NET has been writing in one form or another for most of life. You can find so many inspiration from Professional Refactoring in C ASP NET also informative, and entertaining. Click DOWNLOAD or Read Online button to get full Professional Refactoring in C ASP NET book for free.

Refactoring SQL Applications

Refactoring SQL Applications Author Stephane Faroult
ISBN-10 9780596514976
Release 2008-12-08
Pages 277
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This practical book helps SQL developers dramatically improve database performance through good practices and effective design. It explains methods to change code and deliver maximum performance without altering the application's purpose.

Refactoring Databases

Refactoring Databases Author Scott W. Ambler
ISBN-10 0321630173
Release 2006-03-03
Pages 384
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Refactoring has proven its value in a wide range of development projects–helping software professionals improve system designs, maintainability, extensibility, and performance. Now, for the first time, leading agile methodologist Scott Ambler and renowned consultant Pramodkumar Sadalage introduce powerful refactoring techniques specifically designed for database systems. Ambler and Sadalage demonstrate how small changes to table structures, data, stored procedures, and triggers can significantly enhance virtually any database design–without changing semantics. You’ll learn how to evolve database schemas in step with source code–and become far more effective in projects relying on iterative, agile methodologies. This comprehensive guide and reference helps you overcome the practical obstacles to refactoring real-world databases by covering every fundamental concept underlying database refactoring. Using start-to-finish examples, the authors walk you through refactoring simple standalone database applications as well as sophisticated multi-application scenarios. You’ll master every task involved in refactoring database schemas, and discover best practices for deploying refactorings in even the most complex production environments. The second half of this book systematically covers five major categories of database refactorings. You’ll learn how to use refactoring to enhance database structure, data quality, and referential integrity; and how to refactor both architectures and methods. This book provides an extensive set of examples built with Oracle and Java and easily adaptable for other languages, such as C#, C++, or VB.NET, and other databases, such as DB2, SQL Server, MySQL, and Sybase. Using this book’s techniques and examples, you can reduce waste, rework, risk, and cost–and build database systems capable of evolving smoothly, far into the future.

xUnit Test Patterns

xUnit Test Patterns Author Gerard Meszaros
ISBN-10 9780132797467
Release 2007-05-21
Pages 944
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Automated testing is a cornerstone of agile development. An effective testing strategy will deliver new functionality more aggressively, accelerate user feedback, and improve quality. However, for many developers, creating effective automated tests is a unique and unfamiliar challenge. xUnit Test Patterns is the definitive guide to writing automated tests using xUnit, the most popular unit testing framework in use today. Agile coach and test automation expert Gerard Meszaros describes 68 proven patterns for making tests easier to write, understand, and maintain. He then shows you how to make them more robust and repeatable--and far more cost-effective. Loaded with information, this book feels like three books in one. The first part is a detailed tutorial on test automation that covers everything from test strategy to in-depth test coding. The second part, a catalog of 18 frequently encountered "test smells," provides trouble-shooting guidelines to help you determine the root cause of problems and the most applicable patterns. The third part contains detailed descriptions of each pattern, including refactoring instructions illustrated by extensive code samples in multiple programming languages.

Refactoring for Software Design Smells

Refactoring for Software Design Smells Author Girish Suryanarayana
ISBN-10 9780128016466
Release 2014-11-11
Pages 258
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Awareness of design smells – indicators of common design problems – helps developers or software engineers understand mistakes made while designing, what design principles were overlooked or misapplied, and what principles need to be applied properly to address those smells through refactoring. Developers and software engineers may "know" principles and patterns, but are not aware of the "smells" that exist in their design because of wrong or mis-application of principles or patterns. These smells tend to contribute heavily to technical debt – further time owed to fix projects thought to be complete – and need to be addressed via proper refactoring. Refactoring for Software Design Smells presents 25 structural design smells, their role in identifying design issues, and potential refactoring solutions. Organized across common areas of software design, each smell is presented with diagrams and examples illustrating the poor design practices and the problems that result, creating a catalog of nuggets of readily usable information that developers or engineers can apply in their projects. The authors distill their research and experience as consultants and trainers, providing insights that have been used to improve refactoring and reduce the time and costs of managing software projects. Along the way they recount anecdotes from actual projects on which the relevant smell helped address a design issue. Contains a comprehensive catalog of 25 structural design smells (organized around four fundamental design principles) that contribute to technical debt in software projects Presents a unique naming scheme for smells that helps understand the cause of a smell as well as points toward its potential refactoring Includes illustrative examples that showcase the poor design practices underlying a smell and the problems that result Covers pragmatic techniques for refactoring design smells to manage technical debt and to create and maintain high-quality software in practice Presents insightful anecdotes and case studies drawn from the trenches of real-world projects

Refactoring Workbook

Refactoring Workbook Author William C. Wake
ISBN-10 0321109295
Release 2004
Pages 235
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& Most software practitioners deal with inherited code; this book teaches them how to optimize it & & Workbook approach facilitates the learning process & & Helps you identify where problems in a software application exist or are likely to exist

Pro PHP Refactoring

Pro PHP Refactoring Author Francesco Trucchia
ISBN-10 9781430227281
Release 2011-01-11
Pages 360
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Many businesses and organizations depend on older high-value PHP software that risks abandonment because it is impossible to maintain. The reasons for this may be that the software is not well designed; there is only one developer (the one who created the system) who can develop it because he didn’t use common design patterns and documentation; or the code is procedural, not object-oriented. With this book, you’ll learn to identify problem code and refactor it to create more effective applications using test-driven design.

Refactoring HTML

Refactoring HTML Author Elliotte Rusty Harold
ISBN-10 9780132701877
Release 2012-03-16
Pages 368
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Like any other software system, Web sites gradually accumulate “cruft” over time. They slow down. Links break. Security and compatibility problems mysteriously appear. New features don’t integrate seamlessly. Things just don’t work as well. In an ideal world, you’d rebuild from scratch. But you can’t: there’s no time or money for that. Fortunately, there’s a solution: You can refactor your Web code using easy, proven techniques, tools, and recipes adapted from the world of software development. In Refactoring HTML, Elliotte Rusty Harold explains how to use refactoring to improve virtually any Web site or application. Writing for programmers and non-programmers alike, Harold shows how to refactor for better reliability, performance, usability, security, accessibility, compatibility, and even search engine placement. Step by step, he shows how to migrate obsolete code to today’s stable Web standards, including XHTML, CSS, and REST—and eliminate chronic problems like presentation-based markup, stateful applications, and “tag soup.” The book’s extensive catalog of detailed refactorings and practical “recipes for success” are organized to help you find specific solutions fast, and get maximum benefit for minimum effort. Using this book, you can quickly improve site performance now—and make your site far easier to enhance, maintain, and scale for years to come. Topics covered include • Recognizing the “smells” of Web code that should be refactored • Transforming old HTML into well-formed, valid XHTML, one step at a time • Modernizing existing layouts with CSS • Updating old Web applications: replacing POST with GET, replacing old contact forms, and refactoring JavaScript • Systematically refactoring content and links • Restructuring sites without changing the URLs your users rely upon This book will be an indispensable resource for Web designers, developers, project managers, and anyone who maintains or updates existing sites. It will be especially helpful to Web professionals who learned HTML years ago, and want to refresh their knowledge with today’s standards-compliant best practices. This book will be an indispensable resource for Web designers, developers, project managers, and anyone who maintains or updates existing sites. It will be especially helpful to Web professionals who learned HTML years ago, and want to refresh their knowledge with today’s standards-compliant best practices.

Genome Refactoring

Genome Refactoring Author Natalie Kuldell
ISBN-10 9781598299472
Release 2009
Pages 66
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The science of biology celebrates the discovery and understanding of biological systems that already exist in nature. In parallel, the engineering of biology must learn how to make use of our understanding of the natural world to design and build new useful biological systems. "Synthetic biology" represents one example of recent work to engineer biological systems. This emerging field aims to replace the ad hoc process of assembling biological systems by primarily developing tools to assemble reliable-but-complex living organisms from standard components that can later be reused in new combination. The focus of this book is "genome refactoring," one of several approaches to manage the complexity of a biological system in which the goal is to redesign the genetic elements that encode a living form--preserving the function of that form but encoding it with a genome far easier to study and extend. This book presents genome refactoring in two ways: as an important aspect of the emerging field of synthetic biology and as a powerful teaching tool to train would be professionals in the subject. Chapters focus on the overarching goals of synthetic biology and their alignment with the motivations and achievements in genome engineering; the engineering frameworks of refactoring, including genome synthesis, standardization of biological parts, and abstraction; a detailed description of the bacteriophages that have been refactored up to this point; and the methods of refactoring and contexts for that work drawn from the bacteriophage M13. Overall, these examples offer readers the potential for synthetic biology and the areas in need of further research. If successful, synthetic biology and genome refactoring could address any number of persistent societal needs, including sustainable energy, affordable and effective medicine, and green manufacturing practices. Table of Contents: Tools for Genome Engineering and Synthetic Biology / Bacteriophage as Templates for Refactoring / Methods/Teaching Protocols for M13 Reengineering / Writing and Speaking as Biological Engineers / Summary and Future Directions / Appendix A / Appendix B / Appendix C

Refactoring with Relations A New Method for Refactoring Object Oriented Software

Refactoring with Relations  A New Method for Refactoring Object Oriented Software Author Sergio Pissanetzky, Jr.
ISBN-10 9780976277545
Release 2006-07-01
Pages 83
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This electronic book discusses refactoring with support from the relational model of computer programs. Code in all programming languages needs refactoring, and a multi-language refactoring engine is needed to refactor that code. Refactoring is about structure, and the book is about structure. The book proceeds to discuss the structure of code, argues that it needs to be identified, separated from language constructs, and encapsulated into a container. The encapsulated structure is preserved in a pristine state and serves as an invariant point of reference for the refactoring transformations.The book defines "bad" code as one with a damaged structure and "good" code as one with a properly encapsulated and logically sound structure. The book proposes the relational model as the container for the structure of the program and to serve as a language-independent, non-object-oriented repository with sufficient information to support refactoring. Relations are covered as a fundamental mathematical tool used to describe structure. The model can be created from existing code by a specialized parser, and a sparse matrix partitioning algorithm can create the refactored classes by recursively encapsulating user types. The combination of the model and the algorithm makes automatic polyglot refactoring of computer code possible. The model provides for integration of refactoring tools and development tools into one platform.The book also demonstrates that deep refactoring converts "bad" code into Strong Ownership code, a programming style described in the book, and demonstrates that the need for refactoring may be reduced by following the Strong Ownership prescriptions during development. The book includes many practical examples, presents experimental evidence, discusses various applications and possible implementations, and covers details of the process of refactoring with relational support, as well as the conversion from the model to final object-oriented code.Relational support for refactoring is a new concept. The production of tools will take time, meanwhile, developers are advised to mind Strong Ownership techniques. This is an 83-page eBook in PDF format presenting refactoring in a new light and a much larger scale. Downloads are provided and a page sample is available from The page sample is a pdf file with the preface, table of contents, index, and some selected pages.