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Java Design Patterns - A Hands-On Experience with Real-World Examples
von: Vaskaran Sarcar
Apress, 2018
ISBN: 9781484240786 , 512 Seiten
2. Auflage
Format: PDF, Online Lesen
Kopierschutz: Wasserzeichen
Preis: 56,99 EUR
eBook anfordern 
Table of Contents
5
About the Author
19
About the Technical Reviewers
20
Acknowledgments
22
Foreword
23
Introduction
24
Part I: Gang of Four Patterns
31
Chapter 1: Singleton Pattern
32
GoF Definition
32
Concept
32
Real-World Example
32
Computer-World Example
33
Illustration
33
Class Diagram
33
Package Explorer View
34
Discussion
34
Implementation
35
Output
36
Q&A Session
36
Output
40
Eager Initialization
41
Discussion
41
Output
43
Analysis
43
Bill Pugh’s Solution
43
Double-Checked Locking
44
Chapter 2: Prototype Pattern
47
GoF Definition
47
Concept
47
Real-World Example
47
Computer-World Example
48
Illustration
48
Class Diagram
48
Package Explorer View
50
Implementation
51
Output
53
Q&A Session
54
Demonstration
57
Output
59
Chapter 3: Builder Pattern
60
GoF Definition
60
Concept
60
Real-World Example
61
Computer-World Example
61
Illustration
62
Class Diagram
63
Package Explorer View
63
Implementation
65
Output
69
Q&A Session
69
Modified Illustration
73
Modified Package Explorer View
73
Modified Implementation
75
Modified Output
79
Analysis
80
Chapter 4: Factory Method Pattern
82
GoF Definition
82
Concept
82
Real-World Example
83
Computer-World Example
83
Illustration
84
Class Diagram
84
Package Explorer View
85
Implementation
85
Output
88
Modified Implementation
88
Modified Output
90
Analysis
90
Q&A Session
90
Chapter 5: Abstract Factory Pattern
94
GoF Definition
94
Concept
94
Real-World Example
95
Computer-World Example
95
Illustration
95
Class Diagram
97
Package Explorer View
98
Implementation
99
Output
103
Q&A Session
103
Simple Factory Pattern Code Snippet
104
Factory Method Pattern Code Snippet
105
Abstract Factory Pattern Code Snippet
105
Conclusion
106
Modified Illustration
107
Modified Implementation
107
Modified Output
112
Chapter 6: Proxy Pattern
113
GoF Definition
113
Concept
113
Real-World Example
113
Computer-World Example
114
Illustration
114
Class Diagram
114
Package Explorer View
115
Implementation
116
Output
118
Q&A Session
118
Alternate Implementation
119
Output Without Lazy Instantiation
121
Analysis
122
Output with Lazy Instantiation
122
Analysis
122
Modified Package Explorer View
124
Modified Implementation
125
Modified Output
127
Chapter 7: Decorator Pattern
129
GoF Definition
129
Concept
129
Real-World Example
129
Computer-World Example
131
Illustration
132
Class Diagram
132
Package Explorer View
133
Implementation
133
Output
136
Q&A Session
137
Chapter 8: Adapter Pattern
143
GoF Definition
143
Concept
143
Real-World Example
143
Computer-World Example
144
Illustration
145
Class Diagram
146
Package Explorer View
146
Implementation
147
Output
149
Modified Illustration
149
Modified Class Diagram
149
Key Characteristics of the Modified Implementation
150
Modified Package Explorer View
152
Modified Implementation
153
Modified Output
156
Types of Adapters
156
Object Adapters
156
Class Adapters
157
Q&A Session
158
Chapter 9: Facade Pattern
161
GoF Definition
161
Concept
161
Real-World Example
161
Computer-World Example
162
Illustration
162
Class Diagram
163
Package Explorer View
164
Implementation
165
Output
169
Q&A Session
170
Chapter 10: Flyweight Pattern
173
GoF Definition
173
Concept
173
Real-World Example
174
Computer-World Example
174
Illustration
175
Class Diagram
176
Package Explorer View
176
Implementation
177
Output
183
Analysis
185
Q&A Session
185
Chapter 11: Composite Pattern
190
GoF Definition
190
Concept
190
Real-World Example
191
Computer-World Example
191
Illustration
191
Class Diagram
192
Package Explorer View
193
Implementation
194
Output
199
Q&A Session
201
Chapter 12: Bridge Pattern
204
GoF Definition
204
Concept
204
Real-World Example
204
Computer-World Example
205
Illustration
205
Class Diagram
208
Package Explorer View
209
Key Characteristics
210
Implementation
210
Output
214
Q&A Session
215
Chapter 13: Visitor Pattern
217
GoF Definition
217
Concept
217
Real-World Example
218
Computer-World Example
218
Illustration
218
Class Diagram
219
Package Explorer View
220
Implementation
220
Output
222
Modified Illustration
222
Key Characteristic of the Modified Example
223
Step 1
224
Step 2
224
Step 3
225
Step 4
226
Step 5
226
Modified Class Diagram
228
Modified Package Explorer View
228
Modified Implementation
230
Modified Output
236
Q&A Session
237
Chapter 14: Observer Pattern
240
GoF Definition
240
Concept
240
Real-World Example
243
Computer-World Example
243
Illustration
244
Class Diagram
245
Package Explorer View
245
Implementation
247
Output
250
Analysis
250
Q&A Session
250
Chapter 15: Strategy (Policy) Pattern
255
GoF Definition
255
Concept
255
Real-World Example
255
Computer world Example
256
Illustration
256
Class Diagram
257
Package Explorer View
257
Implementation
259
Output
262
Q&A Session
262
Chapter 16: Template Method Pattern
272
GoF Definition
272
Concept
272
Real-World Example
272
Computer-World Example
273
Illustration
273
Class Diagram
273
Package Explorer View
274
Implementation
275
Output
277
Q&A Session
277
Modified Implementation
278
Modified Output
281
Chapter 17: Command Pattern
283
GoF Definition
283
Concept
283
Real-World Example
283
Computer-World Example
284
Illustration
284
Class Diagram
285
Package Explorer View
286
Implementation
287
Output
290
Q&A Session
290
Modified Class Diagram
291
Modified Package Explorer View
292
Modified Implementation
294
Modified Output
300
Chapter 18: Iterator Pattern
304
GoF Definition
304
Concept
304
Real-World Example
305
Computer-World Example
306
Illustration
306
Class Diagram
307
Package Explorer View
309
First Implementation
310
Output
312
Key Characteristics of the Second Implementation
313
Second Implementation
313
Output
315
Q&A Session
316
Third Implementation
318
Output
321
Chapter 19: Memento Pattern
322
GoF Definition
322
Concept
322
Real-World Example
322
Computer-World Example
323
Illustration
323
Class Diagram
324
Package Explorer View
325
Implementation
325
Output
328
Q&A Session
329
Modified Caretaker Class
330
Modified Output
331
Analysis
332
Shallow Copy vs. Deep Copy in Java
340
Key Characteristics of the Following Program
340
Implementation
341
Output
344
Analysis
344
Modified Output
345
Analysis
345
Chapter 20: State Pattern
347
GoF Definition
347
Concept
347
Real-World Example
348
Computer-World Example
348
Illustration
348
Key Characteristics
350
Class Diagram
350
Package Explorer View
352
Implementation
353
Output
357
Q&A Session
358
Modified Package Explorer View
361
Modified Implementation
363
Modified Output
368
Chapter 21: Mediator Pattern
371
GoF Definition
371
Concept
371
Real-World Example
371
Computer-World Example
372
Illustration
373
Class Diagram
374
Package Explorer View
375
Implementation
377
Output
381
Analysis
381
Modified Illustration
381
Modified Class Diagram
383
Modified Package Explorer View
384
Modified Implementation
385
Modified Output
390
Analysis
391
Q&A Session
391
Chapter 22: Chain-of-Responsibility Pattern
395
GoF Definition
395
Concept
395
Real-World Example
396
Computer-World Example
396
Illustration
397
Class Diagram
398
Package Explorer View
399
Implementation
400
Output
403
Q&A Session
404
Chapter 23: Interpreter Pattern
406
GoF Definition
406
Concept
406
Real-World Example
408
Computer-World Example
408
Illustration
408
Class Diagram
410
Package Explorer View
411
Implementation
412
Output
416
Analysis
417
Modified Illustration
417
Modified Class Diagram
417
Modified Package Explorer View
417
Modified Implementation
418
Modified Output
423
Analysis
423
Q&A Session
424
Part II: Additional Design Patterns
425
Chapter 24: Simple Factory Pattern
426
Intent
426
Concept
426
Real-World Example
426
Computer-World example
427
Illustration
428
Class Diagram
428
Package Explorer View
429
Implementation
430
Output
432
Case1. User input:0
433
Case2. User input:1
433
Case3. An unwanted user input:2
433
Q&A Session
434
Chapter 25: Null Object Pattern
436
Concept
436
A Faulty Program
437
Output with Valid Inputs
439
Analysis with an Unwanted Input
439
Encountered Exception
440
Immediate Remedy
440
Analysis
440
Real-World Example
441
Computer-World Example
441
Illustration
441
Class Diagram
442
Package Explorer View
443
Implementation
444
Output
447
Analysis
448
Q&A Session
448
Chapter 26: MVC Pattern
452
Concept
452
Key Points to Remember
453
Variation 1
454
Variation 2
454
Variation 3
455
Real-World Example
455
Computer-World Example
456
Illustration
457
Class Diagram
457
Package Explorer View
459
Implementation
459
Output
467
Q&A Session
468
Modified Output
470
Part III: Final Discussions on Design Patterns
473
Chapter 27: Criticisms of Design Patterns
474
Q&A Session
476
Chapter 28: AntiPatterns: Avoid the Common Mistakes
480
What Is an Antipattern?
480
Brief History of Antipatterns
481
Examples of Antipatterns
482
Types of Antipatterns
484
Q&A Session
484
Chapter 29: FAQs
488
Appendix A: A Brief Overview of GoF Design Patterns
494
Key Points
495
A. Creational Patterns
496
B. Structural Patterns
496
C. Behavioral Patterns
497
Q&A Session
499
Appendix B: Winning Notes and the Road Ahead
502
Appendix C: Bibliography
503
Index
505