PropertyHandle propHandle = getPropertyHandle( OdaDataSet.DESIGNER_STATE_PROP );
PropertyHandle propHandle = getPropertyHandle( IOdaDataSetModel.DESIGNER_STATE_PROP );
	public OdaDesignerStateHandle getDesignerState( )	{		PropertyHandle propHandle = getPropertyHandle( OdaDataSet.DESIGNER_STATE_PROP );		OdaDesignerState designerState = (OdaDesignerState) propHandle				.getValue( );		if ( designerState == null )			return null;		return (OdaDesignerStateHandle) designerState.getHandle( propHandle );	}