A protocol indicating that an activity or action supports cancellation.
protocol DatabaseCancellable : Sendableclass AnyDatabaseCancellableA type-erasing cancellable object that executes a provided closure when canceled.
import GRDBA toolkit for SQLite databases, with a focus on application development
protocol Sendablefinal class AnyDatabaseCancellableA type-erasing cancellable object that executes a provided closure when canceled.
func cancel() Cancel the activity.
@preconcurrency func start(in reader: any DatabaseReader, scheduling scheduler: some ValueObservationScheduler, onError: @escaping (Error) -> Void, onChange: @escaping (Reducer.Value) -> Void) -> AnyDatabaseCancellable Starts observing the database.
@preconcurrency @MainActor func start(in reader: any DatabaseReader, scheduling scheduler: some ValueObservationMainActorScheduler = .mainActor, onError: @escaping @MainActor (Error) -> Void, onChange: @escaping @MainActor (Reducer.Value) -> Void) -> AnyDatabaseCancellable Starts observing the database and notifies fresh values on the main actor.
func values(in reader: any DatabaseReader, scheduling scheduler: some ValueObservationScheduler = .task, bufferingPolicy: AsyncValueObservation<Reducer.Value>.BufferingPolicy = .unbounded) -> AsyncValueObservation<Reducer.Value> Returns an asynchronous sequence of observed values.
protocol ValueObservationScheduler : SendableA type that determines when ValueObservation notifies its fresh values.
protocol ValueObservationMainActorScheduler : ValueObservationSchedulerA type that determines when ValueObservation notifies its fresh values, on the main actor.