async def _write(self, table_name, key, columns):
pdu = self._make_pdu()
pdu.write.table_name = table_name
key_fields = utils.make_fields(key)
pdu.write.key.extend(key_fields)
columns_fields = utils.make_fields(columns)
pdu.write.columns.extend(columns_fields)
rpdu = await self._write_pdu(pdu)
return utils.format_rpdu(rpdu)
async def _read_range(self, table_name, start_key, end_key, limit):
pdu = self._make_pdu()
pdu.read_range.table_name = table_name
start_key_fields = utils.make_fields(start_key)
pdu.read_range.start_key.extend(start_key_fields)
end_key_fields = utils.make_fields(end_key)
pdu.read_range.end_key.extend(end_key_fields)
pdu.read_range.limit = limit
rpdu = await self._write_pdu(pdu)
return utils.format_rpdu(rpdu)
async def _seek(self, table_name, key):
pdu = self._make_pdu()
pdu.seek.table_name = table_name
key_fields = utils.make_fields(key)
pdu.seek.key.extend(key_fields)
rpdu = await self._write_pdu(pdu)
return utils.format_rpdu(rpdu)
async def _read_range_n_ts(self, table_name, start_key, n):
pdu = self._make_pdu()
pdu.read_range_n_ts.table_name = table_name
start_key_fields = utils.make_fields(start_key)
pdu.read_range_n_ts.start_key.extend(start_key_fields)
pdu.read_range_n_ts.n = n
rpdu = await self._write_pdu(pdu)
return utils.format_rpdu(rpdu)
async def _update(self, table_name, key, update_operations):
pdu = self._make_pdu()
pdu.update.table_name = table_name
key_fields = utils.make_fields(key)
pdu.update.key.extend(key_fields)
uol = utils.make_update_operation_list(update_operations)
pdu.update.update_operation.extend(uol)
rpdu = await self._write_pdu(pdu)
return utils.format_rpdu(rpdu)
