软件预构艺术（影印版）

PREFACE
1 INTRODUCTION TO PREFACTORING
What Is Prefactoring?
The Three Extremes
The Guidelines Explored
The Context for This Book
2 THE SYSTEM IN SO MANY WORDS
Meet Sam
Reinvention Avoidance
What's in a Name?
Splitters Versus Lumpers
Clumping
Abstracting
Prototypes Are Worth a Thousand Words
3 GENERAL DEVELOPMENT ISSUES
Start with the Big Picture
Interface Contracts
Validation
Code Communicates
Consistency Is Simplicity
A Prefactoring Attitude
Don't Repeat Yourself
Documentation of Assumptions and Decisions
Dealing with Deuiations and Errors
Speeding
The Spreadsheet Conundrum
Tools Are Tools--Use Them Wisely
4 GETTING THE BIG PICTURE
The Rest of the Story
Process
The Initial Design
Global Planning, Local Designing
Testing Functionality
Testing quality
Security
5    GOT CLASS ？
    Categories and Classes
    Declaration Versus Execution
    Appropriate Inheritance
     Communicate withext
     More Than One
6    A FEW WORDS ON CLASSES
     Honor the Class Maxims
     Three Laws of Objects
     Need Determines Class
     Polymorphism
     One Little.lob
     Policy Versus Implementation
     Extreme Naming
     Overloading Functions
  7   GETTING THERE
     Where We Are
     Separating Concerns
     Migrating to the New System
8 THE FIRSTRELEASE
      The Proof Is in the Puddin.~
      Relrospective Time
      The System as It Stands Now
      Operations Interface
      Abstract Data Types
      Configuration
      Testing
      Dealing with Deuiations and Errors
      A Little Prefactofing
      The First Released Iteration
      Sometimes Practice Does Not Match Theory
      The Rest of the Classes
   9   ASSOCIATIONS AND STATES
      Sam's Neuw Requirement
      Who's in Charge?
      The State of an Object
]0  INTERFACES AND ADAPTATION
       The Catalog Search Use Case
       Designinn the Interface
       Interface Development
       Interface Testing
       Interface Splitting
       Something Worlking
11   ZIP CODES AND INTERFACES
      Adaptation
      Pass the Buck
       Unwritten Code
       Indirection
       Logging
       Paradigm Mismatch
12   MORE REPORTS
       Fancy Reports
       Change Happens
       Exports
13   INVOICES, CREDIT CARDS, AND DISCOUNTS
       The Next Step
       The Language of the Client
       Security and Priuacy
14  SAM IS EXPANDING
       The Second Store
       A New Development
       The Third Store
       Goodbye Sam
       Generality
15   A PRINTSERVER EXAMPLE
       Introduction
       The System
       The Message
       Testing
       Logging
       Still More Separation
       Epilogue
]6   ANTISPAM EXAMPLE
       The Context
       Spare Checking
       The ReceivingMailServer
       ReceivedMailExaminer
       The Full Flow
17  EPILOGUE
A     GUIDELINES AND PRINCIPLES
  B   SOURCE CODE
        INDEX