ActionScript 3.0 Design Patterns
280 | Chapter 7: Command Pattern radio, very much like someone programming actual push buttons on a car radio to specific statio ...
Summary | 281 Summary The command pattern is a very powerful example of encapsulation or information hiding, and shows its utili ...
282 Chapter 8 CHAPTER 8 Observer Pattern 8 It is the theory that decides what can be observed. —Albert Einstein Every man who ob ...
What Is the Observer Pattern? | 283 However, by using a single call to the web service and then broadcasting to the mul- tiple i ...
284 | Chapter 8: Observer Pattern introduced, adding a class as part of the application is as easy as creating the class and sub ...
Key OOP Concepts Used with the Observer Pattern | 285 the observer from the notification process. In fact,every singleSubjectmet ...
286 | Chapter 8: Observer Pattern of an abstract class or an interface instead of a class. What does that really mean, though? T ...
Key OOP Concepts Used with the Observer Pattern | 287 Open a new Flash document file, and, in the Class Document window, type in ...
288 | Chapter 8: Observer Pattern works fine. What’s more, using thespaceWarriorinstance, we could redefine it as an Alien( ) in ...
Minimalist Abstract Observer | 289 applied to all subclasses, a change to the superclass will do the trick. All changes are inhe ...
290 | Chapter 8: Observer Pattern this all work right is the use of an array to hold the subscribing observers, and a dis- tribu ...
Minimalist Abstract Observer | 291 To illustrate the Observer design pattern in its minimal form, we’ve chosen a light that can ...
292 | Chapter 8: Observer Pattern In this implementation, you can see that most of the work is done with composition. The constr ...
Minimalist Abstract Observer | 293 Theupdate( )function is tied into theConcreteSubjectclass as a parameter. So all instances of ...
294 | Chapter 8: Observer Pattern Note that this script programs to the interface to instantiate the different observer instance ...
Example: Adding States and Identifying Users | 295 Multiple States To understand multiple states, just imagine a daily newspaper ...
296 | Chapter 8: Observer Pattern this.news=news; this.sports=sports; this.stocks=stocks; this.entertainment=entertainment; } Li ...
Example: Adding States and Identifying Users | 297 duplicate=false; for(var ob=0;ob<this.observers.length;ob++) { if(this.obs ...
298 | Chapter 8: Observer Pattern Example 8-12. ConcreteSubject.as package { //Concrete Subject public class ConcreteSubject imp ...
Example: Adding States and Identifying Users | 299 for (var notify in this.observers) { observers[notify].update (news,sports, s ...
«
11
12
13
14
15
16
17
18
19
20
»
Free download pdf