Chapter 1 Refactoring, a First Example（新增批注共21条）
The Starting Point
The First Step in Refactoring
Decomposing and Redistributing the Statement Method
Replacing the Conditional Logic on Price Code with
Polymorphism
Final Thoughts
Chapter 2 Principles in Refactoring（新增批注共10条）
Defining Refactoring
Why Should You Refactor?
When Should You Refactor?
What DO I Tell My Manager?
Problems with Refactoring
Refactoring and Design
Refactoring and Performance
Where Did Refactoring Come From?
Chapter 3 Bad Smells in Code (by Kent Beck and Martin
Fowler)（新增批注共17条）
Duplicated Code
Long Method
Large Class
Long Parameter List
Divergent Change
Shotgun Surgery
Feature Envy
Data Clumps
Primitive Obsession
Switch Statements
Parallel Inheritance Hierarchies
Lazy Class
Speculative Generality
Temporary Field
Message Chains
Middle Man
Inappropriate Intimacy
Alternative Classes with Different Interfaces
Incomplete Library Class
Data Class
Refused Bequest
Comments
Chapter 4 Building Tests（新增批注共2条）
The Value of Self．testing Code
The JUnit Testing Framework
Adding More Tests
Chapter 5 Toward a Catalog of Refactorings（新增批注共1条）
Format of the Refactorings
Finding References
How Mature Are These Refactorings?
Chapter 6 Composing Methods（新增批注共7条）
Extract Method11O
Inline Method
Inline Temp
Replace Temp with Query
Introduce Explaining Variable
Split Temporary Variable
Remove Assignments to Parameters
Replace Method with Method Object
Substitute Algorithm
Chapter 7 Moving Features Between Objects（新增批注共11条）
Move Method
Move Field
Extract Class
Inline Class
Hide Delegate
Remove Middle Man
Introduce Foreign Method
Introduce Local Extension
Chapter 8 Organizing Data（新增批注共9条）
Self Encapsulate Field
Replace Data Value with Object
Change Value to Reference
Change Reference to Value
Replace Array with Object
Duplicate Observed Data
Change Unidirectional Association to Bidirectional
Change Bidirectional Association to Unidirectional
Replace Magic Number with Symbolic Constant
Encapsulate Field
Encapsulate Collection
Replace Record with Data Class
Replace Type Code with Class
Replace Type Code with Subclasses
Replace Type Code with StateStrategy
Replace Subclass with Fields
Chapter 9 Simplifying Conditional Expressions（新增批注共6条）
Decompose Conditional
Consolidate Conditional Expression
Consolidate Duplicate Conditional Fragments
Remove Contr01 Flag
Replace Nested Conditional with Guard Clauses
Replace Conditional with Polymorphism
Introduce Null Object
Introduce Assertion
Chapter 10 Making Method Calls Simpler（新增批注共13条）
Rename Method
Add Parameter
Remove Parameter
Separate Query from Modifier
Parameterize Method
Replace Parameter with Explicit Methods
Preserve Whole Object
Replace Parameter with Method
Introduce Parameter Object
Remove Setting Method
Hide Method
Replace Constructor with Factory Method
Encapsulate Downcast
Replace Error Code with Exception
Replace Exception With Test
Chapter 11 Dealing with Generalization（新增批注共6条）
Pull Up Field
Pull Up Method
Pull Up Constructor Body
Push Down Method
Push Down Field
Extract Subclass
Extract Superclass
Extract Interface
Collapse Hierarchy
Form Template Method
Replace Inheritance with Delegation
Replace Delegation with Inheritance
Chapter 12 Big Refactorings (By Kent Beck and Martin
Fowler)（新增批注共11条）
Tease Apart Inheritance
Convert Procedural Design to Objects
Separate Domain from Presentation
Extract Hierarchy
Chapter 13 Refactoring, Reuse, and Reality (by William
Opdyke)（新增批注共8条）
A Reality Check
Why Are Developers Reluctant to Refactor Their
Programs?
A Reality Check (Revisited)
Resources and References for Refactoring
Implications Regarding Software Reuse and Technology
Transfer
A Final Note
References
Chapter 14 Refactoring Tools (by Don Roberts and John
Brant)
Refactoring with a Tool
Technical Criteria for a Refactoring Tool
Practical Criteria for a Refactoring Tool
Wrap Up
Chapter 15 Putting It All Together (by Kent
Beck)（新增批注共2条）
References
List of Soundbites
Index
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