class FDB::DirectorySubspace

def move(db_or_tr, old_name_or_path, new_name_or_path)
  old_path = tuplify_path(old_name_or_path)
  new_path = tuplify_path(new_name_or_path)
  @directory_layer.move(db_or_tr, partition_subpath(old_path), partition_subpath(new_path))
end