Design Patterns Explained

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$MATLAB C++ Math Library Reference$

Chapter 12 • Solving the CAD/CAM Problem with Patterns 2O9 Figure 12-8 The canonical Bridge pattern. Substituting the classes into the canonical Bridge pattern gives Figure 12-9. Figure 12-9 Applying the Bridge pattern to the problem. In Figure 12-9, the Features are being implemented by an ImpFeature, which is either a Vllmp or a V2lmp. In this design, ImpFeature would have to have an interface that allowed for Feature to get whatever information it needed to give Model the information it requested. Thus, ImpFeature would have an interface including methods such as
21O Part IV • Putting It All Together: Thinking in Patterns Not done yet Identifying any additional patterns Do the remaining patterns create a context for each other? • getx to get the X position of Feature • getYto get the Y position of Feature • getLength to get the length of Feature It would also have methods used by only some Features: • getEdgeType to get the type of edge of Feature Note: Only features that need this information should call this method. Later, I will talk about how to use this contextual information to help debug the code. Thinking in Patterns: Step 2c Maybe I cannot see how to finish the implementation yet, and that is okay. I still have other patterns to apply. Looking at Figure 12-9, I should ask myself if any other patterns show up that I had not previously identified. I do not see any additional patterns. There is only the challenge of hooking the V1 and V2 CAD/CAM systems into the design. That is what the Facade and Adapter patterns will do for me. Thinking in Patterns: Step 2d (Facade) Next, I need to verify if any of the remaining patterns create a context for each other. In this case, Facade and Adapter now clearly relate to different pieces of the design and are independent of each other. Therefore, I can apply them in whatever order I choose. I will arbitrarily pick the Facade to apply next, which results in Figure 12-10.
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xvi Preface From Object Orientation
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xviii Preface Patterns are supposed
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xx Preface A slight digression. The
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xxii Preface abstractly and because
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xxiv Preface Approach Rationale A N
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xxvi Preface Acknowledgments Almost
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Overview CHAPTER 1 The Object-Orien
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Chapter 1 The Object-Oriented Parad
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Table 1-2 Objects and Their Respons
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The main program would now look lik
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Table 1-4 Object-Oriented Terminolo
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3O Part I • An Introduction to Ob
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32 Part I • An Introduction to Ob
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4O Part I • An Introduction to Ob
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PART II The Limitations of Traditio
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CHAPTER 3 A Problem That Cries Out
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Chapter 3 • A Problem That Cries
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Figure 3-6 Class diagram of my solu
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Summary Chapter 3 • A Problem Tha
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58 Part II • The Limitations of T
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6O Part II • The Limitations of T
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Chapter 4 • A Standard Object-Ori
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Chapter 4 • A Standard Object-Ori
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Example 4-6 C++ Code Fragments: Imp
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Part Overview PART III Design Patte
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Overview CHAPTER 5 An Introduction
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Chapter 5 An Introduction to Design
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Table 5-2 Key Features of Patterns
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Figure 5-2 A miter joint Chapter 5
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Overview CHAPTER 6 The Facade Patte
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This person would determine how I a
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Field Notes: The Facade Pattern Fac
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Summary Chapter 6 • The Facade Pa
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96 Part III • Design Patterns Int
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98 Part III • Design Patterns How
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1OO Part III • Design Patterns /
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1O2 Part III • Design Patterns Th
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1O4 Part III • Design Patterns Co
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1O6 Part III • Design Patterns Ad
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CHAPTER 8 Expanding Our Horizons Ov
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1. Make a preliminary design withou
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Chapter 8 • Expanding Our Horizon
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124 Part III • Design Patterns It
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126 Part III Design Patterns Proper
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128 Part III Design Patterns But, t
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130 Part III Design Patterns Unders
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132 Part III Design Patterns This s
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134 Part III Design Patterns An alt
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136 Part III Design Patterns It sti
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138 Part III Design Patterns Learni
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140 Part III Design Patterns Strate
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142 Part III Design Patterns Tying
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144 Part III Design Patterns One ru
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146 Part III Design Patterns From a
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148 Part III Design Patterns Exampl
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150 Part III Design Patterns The es
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152 Part III Design Patterns Compou
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154 Part III Design Patterns A usef
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26O Part V • Handling Variations
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262 Part V • Handling Variations
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27O Part V • Handling Variations
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Overview CHAPTER 18 The Template Me
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Chapter 18 • The Template Method
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Intent Problem Solution Participant
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CHAPTER 19 The Factory Method Patte
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The Factory Method Pattern Chapter
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Summary Chapter 19 • The Factory
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Figure 2O-1 Using Strategy patterns
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3O2 Part V • Handling Variations
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CHAPTER 21 Design Patterns Reviewed
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Chapter 21 • Design Patterns Revi
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Chapter 21 • Design Patterns Revi
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Figure 21-1 The relationships betwe
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CHAPTER 22 Bibliography This book h
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• Meyer, B., Object-Oriented Soft
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• See http://java.sun.com/j2se/L3
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Personal Favorites It is my belief
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Spradely, J. P., The Ethnographic I
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Section Overview Section 3: Design
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How do we get good quality repeated
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Or again, people are creatures of h
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this book is not a book about writi
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…The details can confuse the solu
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Patterns help us see the forest for
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Design Pattern Matrix Design Patter
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Design Pattern Matrix How it is imp
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Design Pattern Matrix Is there vari
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: (colon), connecting object and cl
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usiness rules defining, 238 encapsu
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decompression object, 249 decorator
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FilterlnputStream class, 250 flexib
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notifyObservers method, 272 NULL te
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sales-order architecture, e-tail sy
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