State | 5 |
Vehicle State Transitions | 6 |
State Vehicle Example | 7 |
State Vehicle Enum Example | 8 |
Simple Vehicle | 9 |
Who Controls State Transitions? | 10 |
Which State Design Do You Like Best? | 11 |
State: The Players | 12 |
Introduction ← Click to Preview | 14 |
What Needs To Be Refactored? | 15 |
SystemPermission Using The State Pattern
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16 |
Problem Code | 17 |
Critiquing Your Performance | 18 |
Download and Setup Instructions | 19 |
Upload Your Exercise | 20 |
A Graph of Your Refactoring & Testing Activity | 21 |
Your Critique Results | 22 |
Your Customized Feedback | 23 |
Solution Code | 24 |
Command | 26 |
Command Essence ← Click to Preview | 27 |
A Classic Example | 28 |
Command: The Players | 29 |
Executing and Unexecuting Commands | 30 |
Observer | 32 |
Observer The Essence | 33 |
Observer Players ← Click to Preview | 34 |
Bad or Good? | 35 |
A Problem to Solve | 37 |
Problem Source Code | 38 |
Refactoring Guidance | 39 |
Download, Build & Test Instructions | 40 |
Solution | 41 |
Solution Source Code | 42 |
Dependency Injection | 44 |
What is Dependency? | 45 |
What is a Service Locator? | 46 |
What is Dependency Injection? ← Click to Preview | 47 |
What is Inversion of Control? | 48 |
How Does the Injector Know What to Inject? | 49 |
Ravioli Code | 50 |
Casting | 51 |
Stunt Doubles | 52 |
The A-List | 53 |
Iterator | 55 |
Iterator Players ← Click to Preview | 56 |
Iterator Benefits | 57 |
Concurrent Modification? | 58 |
Iterator Loan Quiz ← Click to Preview | 59 |
Identifying Iterators and Other Patterns… | 60 |
A Problem to Solve | 62 |
Problem Source Code | 63 |
Refactoring Guidance | 64 |
Critiquing Your Performance | 65 |
Download, Build & Test Instructions | 66 |
Upload Your Exercise | 67 |
A Graph of Your Refactoring & Testing Activity | 68 |
Your Critique Results | 69 |
Your Customized Feedback | 70 |
Solution Source Code | 71 |
Visitor is Confusing at First | 76 |
Start with an Interpreter | 77 |
Evaluating Expression Visitor | 78 |
Extra Credit | 79 |
Refactoring to Visitor Solution | 80 |
Downcast Solution | 81 |
Overloaded Solution | 82 |
Generic Solution | 83 |
Stack Solution | 84 |
Alternate Solution | 85 |
Visitor Spreadsheet Exercise: Groundwork | 86 |
Visitor Spreadsheet Exercise: Preliminaries | 87 |
Visitor Spreadsheet Exercise: Solution | 88 |
Visitor Spreadsheet Exercise: Clean Up | 89 |
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