[flexcoders] Question about commitProperties

[markgoldin_2000]

I have a custom renderer based on canvas that has the following 
setters:
public function set trainId(value:String):void
{
        _trainId = value;
}
public function get trainId():String
{
        return _trainId;
}                                       
public function set highlightCurrentHour(value:String):void
{
        _backgroundColor = value;
}       
public function get highlightCurrentHour():String
{
       return _backgroundColor;
}
public function set xmlModelData(value:XML):void
{
        _xmlModelData = value;
}       
public function get xmlModelData():XML
{
        return _xmlModelData;
}

then I have:
override protected function commitProperties():void 
{
        super.commitProperties();
        assignBlocks(xmlModelData, trainId, highlightCurrentHour);
}       
and
public function assignBlocks(xmlModelData:XML, trainId:String, 
highlightCurrentHour:String):void
{       
        callLater(trainDepartGrid.assignBlocks, [trainId,  
xmlModelData, highlightCurrentHour]);                   
        trainDepartGrid.width = xmlModelData.trainshours.(train_id == 
trainId).setwidth;
        callLater(trainReceivingGrid.assignCars, [trainId, 
xmlModelData, highlightCurrentHour]);
        trainReceivingGrid.width = xmlModelData.trainshours.(train_id 
== trainId).setwidth;
}

I am setting these properties on this renderer like this:
ClassFactory(codeDestinationRenderer).properties =
{trainId:prop.train_id, highlightCurrentHour:bBackgroundColor, 
xmlModelData:xmlModelData};

My question is:
Is commitProperties is a right place to call assignBlocks?
Before I changed my code to this version the program worked much 
better though.

Please help.

Thanks