smok/extras/event_database/null.py
import typing as tp
from .base import BaseEventDatabase, BaseEventSynchronization
from ...predicate import Event
class NullEventDatabase(BaseEventDatabase):
"""
For these use cases where you don't use events at all.
"""
def on_predicate_deleted(self, predicate_id: str) -> None:
pass
def get_cache(self, predicate_id: str) -> tp.Any:
raise KeyError()
def set_cache(self, predicate_id: str, cache) -> None:
pass
def get_events_to_sync(self) -> tp.Optional[BaseEventSynchronization]:
return None
def add_event(self, event: Event) -> None:
pass
def close_event(self, event: Event) -> None:
pass
def get_all_events(self) -> tp.Iterator[Event]:
return iter([])
def get_open_events(self) -> tp.Iterator[Event]:
return iter([])
def checkpoint(self) -> None:
pass
def clear_closed_and_synced_events(self) -> None:
pass