Getter Setter

programming flash
1

I’m studying get set and I’m a little stuck.

in the example i’m studying the controller class detects keyboard input with a switch

standard example…

case Keyboard.LEFT:
model.direction = "Left" ;
break;

then over in the model class we have…

public function get direction():String
{
       return_direction;
}
public function set direction(value:String):void
{
        _direction=value;
       dispatchEvent(new Event(Event.CHANGE));
}

then it shoots over to the view class

public function changeHandler(event:Event):void
{
      _status.text=_model.detection;
}

let me get to my confusion. I don’t understand the flow through the model class’s get set. To me it looks like control sends “Left” to

public function set direction(value:String):void
{
        _direction=value;
       dispatchEvent(new Event(Event.CHANGE));
}

sets _direction to value(in this case Left) shoots off change ,which lets view know its time to set _status.text to _modelDirection(in this case Left)

why do we even NEED

public function get direction():String
{
       return_direction;
}

and who is it returning that value to?

please illuminate!!!:ear: