def __refresh_cache(self):
if self._next_item is None:
self._cache = list(
_EggRoll.get_instance().iterate(self._table, kv_pb2.Range(start=self._start, end=self._end, minChunkSize=self._min_chunk_size)))
else:
self._cache = list(
_EggRoll.get_instance().iterate(self._table, kv_pb2.Range(start=self._next_item.key, end=self._end, minChunkSize=self._min_chunk_size)))
if len(self._cache) == 0:
raise StopIteration
self._index = 0
def __refresh_cache(self):
if self._next_item is None:
self._cache = list(
self.stub.iterate(kv_pb2.Range(start=self._start,
end=self._end),
metadata=self.meta))
else:
self._cache = list(
self.stub.iterate(kv_pb2.Range(start=self._next_item.key,
end=self._end),
metadata=self.meta))
# if self._next_item is not None and len(self._cache) > 0 and self._cache[0].key == self._next_item.key:
# self._cache = self._cache[1:]
if len(self._cache) == 0:
raise StopIteration
self._index = 0
def _fetch(self):
start = self._start if self._next_item is None else self._next_item.key
self._cache = list(
self.kv_stub.iterate(kv_pb2.Range(
start=start, end=self._end, minChunkSize=self._min_chunk_size),
metadata=self.adapter.get_stream_meta()))
if len(self._cache) == 0:
raise StopIteration
self._index = 0