Async call inside a class

[Sumudu Chinthaka]

hi

i have a class with a webservice call in the constructor and i want to
handle the result upon successful execution of web service
but Event.COMPLETE inner function never get executed

what should i do to make it possible

if i  place this code in UI component then it;ll get executed but once i
separate it to another class it doesn't work




[Bindable]
public class TestDataProvider
{
 private var isReturn:Boolean = false;
private var originAirport:Airport = new
Airport().AirportInitializer("IKA","IKA","IKA");
private var destinationAirport:Airport = new
Airport().AirportInitializer("DUS","DUS","DUS");
private var departureDate:Date = new Date(2013,5,29);
private var arrivalDate:Date = new Date(2013,5,29);
private var adult:Number = 1;
private var children:Number = 0;
private var infant:Number = 0 ;
 private var flightResult:ArrayCollection;
private var searchCriteria:AvailabilitySearchDTO
private var transactionID:String;
 private var priceQuotResultDTO:PriceQuotResultDTO;
 public function TestDataProvider()
{
searchCriteria = new
AvailabilitySearchDTO().AvailabilitySearchDTOInitializer(this.isReturn,this.originAirport,this.destinationAirport,this.departureDate,this.arrivalDate,this.adult,this.children,this.infant);
var avalabilitySearchReq:AvalabilitySearchRequest = new
AvalabilitySearchRequest(searchCriteria);
 var request:URLRequest = new URLRequest();
var urlLoader:URLLoader = new URLLoader();
 request.contentType = "text/xml; charset=utf-8";
request.method = "POST";
request.url = Globals.ISA_WEB_SERVICE_URL;
 var SOAPAction:URLRequestHeader = new
URLRequestHeader("SOAPAction","getAvailability");
request.requestHeaders.push(SOAPAction);
request.data = avalabilitySearchReq.xmlData;
urlLoader.dataFormat = URLLoaderDataFormat.TEXT;
urlLoader.load(request);
urlLoader.addEventListener(Event.COMPLETE, function (event:Event):void{
 var asObj:Object = XmlUtility.getObjectFromXMLTypeString(event.target.data)
 if(asObj.Envelope.Body.OTA_AirAvailRS.Errors == null)
{
 var tmpObj:Object =
asObj.Envelope.Body.OTA_AirAvailRS.AAAirAvailRSExt.PricedItineraries.PricedItinerary.AirItinerary.OriginDestinationOptions.OriginDestinationOption;
var priceInfo:Object =
asObj.Envelope.Body.OTA_AirAvailRS.AAAirAvailRSExt.PricedItineraries.PricedItinerary.AirItineraryPricingInfo;
transactionID = asObj.Envelope.Body.OTA_AirAvailRS.TransactionIdentifier;
 if(tmpObj is ArrayCollection){
flightResult = tmpObj as ArrayCollection;
}else{
flightResult.addItem(tmpObj);
}
 var searchResDTO:AvailabilitySearchResultDTO = new
AvailabilitySearchResultDTO().AvailabilitySearchResultDTOInitializer(flightResult,searchCriteria,transactionID);
  var request:URLRequest = new URLRequest();
var urlLoader:URLLoader = new URLLoader();
var availabilitySearchResultDTO:AvailabilitySearchResultDTO = searchResDTO;
priceQuotResultDTO = new
PriceQuotResultDTO().PriceQuotResultDTOInitializer(availabilitySearchResultDTO);
 }
 });
 }