Custom itemrenderer doesn't show data

[mark goldin]

Here is my custom itemrenderer code:
import mx.controls.Text;
import mx.controls.listClasses.BaseListData;
import mx.controls.listClasses.IDropInListItemRenderer;
import mx.controls.listClasses.IListItemRenderer;
import mx.core.UIComponent;
public class AssetPathRenderer extends UIComponent implements
IDropInListItemRenderer, IListItemRenderer
{
private var _listData:BaseListData;
private var _data:Object;
private var assetPathText:Text;
public function AssetPathRenderer()
{
super();
assetPathText = new Text();
this.(assetPathText);
assetPathText.visible = true;
}
public function get listData():BaseListData
{
return _listData;
}
public function set listData(value:BaseListData):void
{
_listData = value;
}
public function get data() : Object
{
return _data;
}
public function set data(value:Object):void
{
if (value)
{
if (value.assetPath != "")
assetPathText.text = value.assetPath;
else
assetPathText.text =  value.path;
}
_data = value;
}
}

Implementation. Simplified:
<column itemRenderer="AssetPathRenderer"/>

No data is shown in the column. What am I doing wrong?

Thanks