}
/*package*/ static void notifyChangeSheetOrder(Ref ref, String sheetName) {
final RefSheet refSheet = ref.getOwnerSheet();
final RefBook refBook = refSheet.getOwnerBook();
refBook.publish(new SSDataEvent(SSDataEvent.ON_SHEET_ORDER_CHANGE, ref, sheetName));
}
public static void reevaluateAndNotify(Book book, Set<Ref> last, Set<Ref> all) {
//clear cached formula value
clearFormulaCache(book, all);