public long GetChangeCountForward(ChangeLogQueryInfo queryInfo)
 {
     return 0;
 }
 public IList<IChangeLogItem> GetChanges(ChangeLogQueryInfo queryInfo, ReadDirection direction, SortOrder order)
 {
     return new List<IChangeLogItem>();
 }
 public long GetChangeCountBackwards(ChangeLogQueryInfo queryInfo)
 {
     return 0;
 }