}
protected SimpleStyleDataBackend updateData(final ElementStyleSheet styleSheet)
{
final StyleMetaData[] metaData = selectCommonAttributes();
final TableStyle tableStyle = getTableStyle();
if (tableStyle == TableStyle.ASCENDING)
{
Arrays.sort(metaData, new PlainMetaDataComparator());
return (new SimpleStyleDataBackend(metaData, new GroupingHeader[metaData.length], styleSheet));
}