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內(nèi)容簡介

　　本書榮獲2005年《軟件開發(fā)》雜志圖書通用類的效率大獎（ProductivityAward）.1994年，《設(shè)計模式》通過引入經(jīng)典的解決方案來處理反復(fù)出現(xiàn)的設(shè)計問題而改變了面向?qū)ο箝_發(fā)技術(shù)的發(fā)展前景；1999年，《重構(gòu)》通過引入一種有效的過程來改善代碼而徹底變革了設(shè)計的內(nèi)涵；本書則通過重構(gòu)的演進過程來保持模式的一致性，從而改變了我們的設(shè)計方法。..本書介紹了以模式為導(dǎo)向的重構(gòu)方法的理論和實踐：一系列低級重構(gòu)，讓設(shè)計人員能夠安全地將設(shè)計移到模式實現(xiàn)，或從模式實現(xiàn)中移出設(shè)計。通過使用實際項目的代碼，本書記錄了潛藏在20多個基于模式的設(shè)計轉(zhuǎn)換之下的思想方法和設(shè)計步驟。同時，本書對于模式差異以及如何以盡可能簡單的方式實現(xiàn)模式提出了頗有見解的觀點。本書的主要內(nèi)容■列出27個以模式為導(dǎo)向的重構(gòu)，并輔以實際項目的代碼實例。■描述12個“設(shè)計味道”（designsmell），指示出需要本書所講述的重構(gòu)方法。■關(guān)于模式和重構(gòu)的綜合說明以及新的觀點和想法?！鲈敿?xì)的實現(xiàn)機制：如何組合低級重構(gòu)來實現(xiàn)高級模式。■多種方式來實現(xiàn)相同的模式以及何時使用哪一種?！霾捎脤嶋H的方法引導(dǎo)讀者尤其是缺乏模式或重構(gòu)經(jīng)驗的讀者開始學(xué)習(xí)模式或重構(gòu)方面的知識。...本書提煉和反映了全球模式、重構(gòu)和敏捷開發(fā)社區(qū)60多位軟件工程領(lǐng)域先驅(qū)的思想和觀點。不管你正在集中精力進行遺留開發(fā)還是新型開發(fā)，本書都將幫助你學(xué)會如何安全、有效地做出重要的設(shè)計變更，使你成為更好的軟件設(shè)計人員。

作者簡介

　　Joshua Kerievsky Industrial Logic公司（hllp：industria11ogic．com）的創(chuàng)始人，這是一家主營極限編程業(yè)務(wù)的公司。自1988年以來，作為一名專業(yè)的軟件開發(fā)人員、教員和導(dǎo)師，他為Bankers Trust、MTV、MBNA、Ansys、MDS Sciex、Nielsen Media Research和SunMicrosystems等客戶提供咨詢及培訓(xùn)服務(wù)。他還經(jīng)常在各種會議上發(fā)言，并撰寫了大量的論文。

圖書目錄

ForewordbyRalphJohnson
ForewordbyMartinFowler
Preface
WhatisThisBookAbout?.
WhatAretheGoalsofThisBook?
WhoShouldReadThisBook?
WhatBackgroundDoYouNeed?
HowtoUseThisBook
TheHistoryofThisBook
StandingontheShouldersofGiants
Acknowledgments
Chapter1:WhyIWroteThisBook
Over-Engineering
ThePatternsPanacea
Under-Engineering
Test-DrivenDevelopmentandContinuousRefactoring
RefactoringandPatterns
EvolutionaryDesign
Chapter2:Refactoring
WhatIsRefactoring?
WhatMotivatesUstoRefactor?
ManyEyes
Human-ReadableCode
KeepingItClean
SmallSteps
DesignDebt
EvolvingaNewArchitecture
CompositeandTest-DrivenRefactorings
TheBenefitsofCompositeRefactorings
RefactoringTools
Chapter3:Patterns
WhatIsaPattern?
PatternsHappy
ThereAreManyWaystoImplementaPattern
Refactoringto,towards,andawayfromPatterns
DoPatternsMakeCodeMoreComplex?
PatternKnowledge
Up-FrontDesignwithPatterns
Chapter4:CodeSmells
DuplicatedCode
LongMethod
ConditionalComplexity
PrimitiveObsession
IndecentExposure
SolutionSprawl
AlternativeClasseswithDifferentInterfaces
LazyClass
LargeClass
SwitchStatements
CombinatorialExplosion
OddballSolution
Chapter5:ACatalogofRefactoringstoPatterns
FormatoftheRefactorings
ProjectsReferencedinThisCatalog
XMLBuilders
HTMLParser..
LoanRiskCalculator
AStartingPoint
AStudySequence
Chapter6:Creation
ReplaceConstructorswithCreationMethods
Motivation
Mechanics
Example
Variations
MoveCreationKnowledgetoFactory
Motivation
Mechanics
Example
EncapsulateClasseswithFactory
Motivation
Mechanics
Example
Variations
IntroducePolymorphicCreationwithFactoryMethod
Motivation
Mechanics
Example
EncapsulateCompositewithBuilder
Mechanics
Example
Variations
InlineSingleton
Motivation
Mechanics
Example
Chapter7:Simplification
ComposeMethod
Motivation
Mechanics
Example
ReplaceConditionalLogicwithStrategy
Motivation
Mechanics
Example
MoveEmbellishmenttoDecorator
Motivation
Mechanics
Example
ReplaceState-AlteringConditionalswithState
Motivation
Mechanics
Example
ReplaceImplicitTreewithComposite
Motivation
Mechanics
Example
ReplaceConditionalDispatcherwithCommand
Motivation
Mechanics
Example
Chapter8:Generalization
FormTemplateMethod
Motivation
Mechanics
Example
ExtractComposite
Motivation
Mechanics
Example
ReplaceOne/ManyDistinctionswithComposite
Motivation
Mechanics
Example
ReplaceHard-CodedNotificationswithObserver
Motivation
Mechanics
Example
UnifyInterfaceswithAdapter
Motivation
Mechanics
Example
ExtractAdapter
Motivation
Mechanics
Example
Variations
ReplaceImplicitLanguagewithInterpreter
Motivation
Mechanics
Example
Chapter9:Protection
ReplaceTypeCodewithClass
Motivation
Mechanics
Example
LimitInstantiationwithSingleton
Motivation
Mechanics
Example
IntroduceNullObject
Motivation
Mechanics
Example
Chapter10:Accumulation
MoveAccumulationtoCollectingParameter
Motivation
Mechanics
Example
MoveAccumulationtoVisitor
Motivation
Mechanics
Example
Chapter11:Utilities
ChainConstructors
Motivation
Mechanics
Example
UnifyInterfaces
Motivation
Mechanics
Example
ExtractParameter
Motivation
Mechanics
Example...
AfterwordbyJohnBrantandDonRoberts
References
Index