example of DataBinding using AS3signals

DataBinding.as

public class DataBinding
{
    private var _data:IDataObject;
    private var _renderer:IDataRenderer;

    public function DataBinding(data:IDataObject, renderer:IDataRenderer)
    {
        _data = data;
        _renderer = renderer;
        _data.onChangeState.add( onDataChangeState );
        _renderer.onClick.add( onRendererClick );
    }

    private function onDataChangeState():void{
        _renderer.changeState( _data.state );
    }

    private function onRendererClick():void{
        _data.selected = true;
    }

}

The idea here is that the DataBinding bridges the gap between data (Model) and renderer (View), both abstracted to interfaces