diff options
| -rw-r--r-- | synapse/storage/stream.py | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/synapse/storage/stream.py b/synapse/storage/stream.py index 057f30db33..a2527d2a36 100644 --- a/synapse/storage/stream.py +++ b/synapse/storage/stream.py @@ -148,6 +148,11 @@ def filter_to_clause(event_filter): class StreamWorkerStore(EventsWorkerStore, SQLBaseStore): + """This is an abstract base class where subclasses must implement + `get_room_max_stream_ordering` and `get_room_min_stream_ordering` + which can be called in the initializer. + """ + __metaclass__ = abc.ABCMeta def __init__(self, db_conn, hs): @@ -170,6 +175,14 @@ class StreamWorkerStore(EventsWorkerStore, SQLBaseStore): self._stream_order_on_start = self.get_room_max_stream_ordering() + @abc.abstractmethod + def get_room_max_stream_ordering(self): + raise NotImplementedError() + + @abc.abstractmethod + def get_room_min_stream_ordering(self): + raise NotImplementedError() + @defer.inlineCallbacks def get_room_events_stream_for_rooms(self, room_ids, from_key, to_key, limit=0, order='DESC'): @@ -421,14 +434,6 @@ class StreamWorkerStore(EventsWorkerStore, SQLBaseStore): ) defer.returnValue("t%d-%d" % (topo, token)) - @abc.abstractmethod - def get_room_max_stream_ordering(self): - raise NotImplementedError() - - @abc.abstractmethod - def get_room_min_stream_ordering(self): - raise NotImplementedError() - def get_stream_token_for_event(self, event_id): """The stream token for an event Args: |