设计模式 可复用面向对象软件的基础 英文版PDF电子书下载

Guide to Readers 1

1 Introduction 1

1.1 What Is a Design Pattern? 2

1.2 Design Patterns in Smalltalk MVC 4

1.3 Describing Design Patterns 6

1.4 The Catalog of Design Patterns 8

1.5 Organizing the Catalog 9

1.6 How Design Patterns Solve Design Problems 11

1.7 How to Select a Design Pattern 28

1.8 How to Usea Design Pattern 29

2 A Case Study:Designing a Document Editor 33

2.1 Design Problems 33

2.2 Document Structure 35

2.3 Formatting 40

2.4 Embellishing the User Interface 43

2.5 Supporting Multiple Look-and-Feel Standards 47

2.6 Supporting Multiple Window Systems 51

2.7 User Operations 58

2.8 Spelling Checking and Hyphenation 64

2.9 Summary 76

Design Pattern Catalog 79

3 Creational Patterns 81

Abstract Factory 87

Builder 97

Factory Method 107

Prototype 117

Singleton 127

DiscussionofCreational Patterns 135

4 Structural Patterns 137

Adapter 139

Bridge 151

Composite 163

Decorator 175

Facade 185

Flyweight 195

Proxy 207

Discussion of Structural Patterns 219

5 Behavioral Patterns 221

Chain of Responsibility 223

Command 233

Interpreter 243

Iterator 257

Mediator 273

Memento 283

Observer 293

State 305

Strategy 315

Template Method 325

Visitor 331

Discussion of Behavioral Patterns 345

6.1 What to Expect from Design Patterns 351

6 Conclusion 351

6.2 A Brief History 355

6.3 The Pattern Community 356

6.4 An Invitation 358

6.5 A Parting Thought 358

A Glossary 359

B Guide to Notation 363

B.1 Class Diagram 363

B.2 Object Diagram 364

B.3 Interaction Diagram 366

C Foundation Classes 369

C.1 List 369

C.2 Iterator 372

C.3 ListIterator 372

C.4 Point 373

C.5 Rect 374

Bibliography 375

Index 383