ActionScript 3.0 Design Patterns.pdf - VideoTutorials-bg.com

As with all Decorator design patterns, all other classes are derived from this abstract
component class. In the next section, you’ll see that all of the concrete component
classes are subclasses of the Auto class.
Hybrid car classes concrete component
The four hybrid autos are placed into separate concrete component classes that are all
subclassed from the Auto class. The constructor function assigns a value to the
information property, and the price( ) function returns a value representing the car’s
price. In Examples 4-39 to 4-42, the captions are the filenames to use for saving each
class.
Example 4-39. Prius.as
package
{
public class Prius extends Auto
{
public function Prius( )
{
information = "Toyota Prius Hybrid~\n";
}
override public function price( ):Number
{
return 21725.00;
}
}
}
Example 4-40. Mariner.as
package
{
public class Mariner extends Auto
{
public function Mariner( )
{
information = "Mercury Mariner Hybrid~\n";
}
override public function price( ):Number
{
return 29225.00;
}
}
}
Example 4-41. Accord.as
package
{
public class Accord extends Auto
{
166 | Chapter 4: Decorator Pattern