`faust.stores.base`¶

Base class for table storage drivers.

class faust.stores.base.Store(url: Union[str, URL], app: AppT, table: CollectionT, *, table_name: str = '', key_type: Optional[Union[Type[ModelT], Type[bytes], Type[str]]] = None, value_type: Optional[Union[Type[ModelT], Type[bytes], Type[str]]] = None, key_serializer: Optional[Union[CodecT, str]] = None, value_serializer: Optional[Union[CodecT, str]] = None, options: Optional[Mapping[str, Any]] = None, **kwargs: Any)[source]¶

Base class for table storage drivers.

persisted_offset(tp: TP) → Optional[int][source]¶

Return the persisted offset for this topic and partition.

set_persisted_offset(tp: TP, offset: int) → None[source]¶

Set the persisted offset for this topic and partition.

async need_active_standby_for(tp: TP) → bool[source]¶

Return True if we have a copy of standby from elsewhere.

async on_rebalance(assigned: Set[TP], revoked: Set[TP], newly_assigned: Set[TP], generation_id: int = 0) → None[source]¶

Handle rebalancing of the cluster.

async on_recovery_completed(active_tps: Set[TP], standby_tps: Set[TP]) → None[source]¶

Signal that table recovery completed.

property label: str¶: Return short description of this store. :rtype: str

class faust.stores.base.SerializedStore(url: Union[str, URL], app: AppT, table: CollectionT, *, table_name: str = '', key_type: Optional[Union[Type[ModelT], Type[bytes], Type[str]]] = None, value_type: Optional[Union[Type[ModelT], Type[bytes], Type[str]]] = None, key_serializer: Optional[Union[CodecT, str]] = None, value_serializer: Optional[Union[CodecT, str]] = None, options: Optional[Mapping[str, Any]] = None, **kwargs: Any)[source]¶

Base class for table storage drivers requiring serialization.

apply_changelog_batch(batch: Iterable[EventT], to_key: Callable[[Any], KT], to_value: Callable[[Any], VT]) → None[source]¶

Apply batch of events from changelog topic to this store.

Return view of keys in the K/V store.

Return view of values in the K/V store.

Return view of items in the K/V store as (key, value) pairs.

Clear all data from this K/V store.

Faust