package
{
import flash.utils.Dictionary;
  
public class professional_flex_code_17_SortedMap
{
  private var map:Dictionary;
  private var keys:Array;
  
  public function professional_flex_code_17_SortedMap()
  {
    map = new Dictionary();
    keys = new Array();
  }
  
  // add values by key
  public function addItem( key:Object, value:Object ):void
  {
    map[ key ] = value;
    keys.push( key );
  }

  // get values by key
  public function getItem( key:Object ):Object
  {
    return map[ key ];
  } 
  
  // return keys array, used to iterator over values
  public function keySet():Array
  {
    // sort keys, use toString() on key
    keys.sort();
    return keys;
  }

  // return keys array, used to iterator over values
  public function values():Array
  {
    var values:Array = new Array();
    for each( var val:Object in map )
      values.push( val );
    return values;
  } 
}
}