pub struct Builder<'a, KeyValue, V> { /* private fields */ }Expand description
Executes Command::Set when awaited. Also offers methods to customize the
options for the operation.
Implementations
sourceimpl<'a, K, V> Builder<'a, K, V> where
K: KeyValue,
V: Serialize + Send + Sync,
impl<'a, K, V> Builder<'a, K, V> where
K: KeyValue,
V: Serialize + Send + Sync,
sourcepub fn expire_in(self, duration: Duration) -> Self
pub fn expire_in(self, duration: Duration) -> Self
Set this key to expire after duration from now.
sourcepub fn expire_at(self, time: SystemTime) -> Self
pub fn expire_at(self, time: SystemTime) -> Self
Set this key to expire at the provided time.
sourcepub fn keep_existing_expiration(self) -> Self
pub fn keep_existing_expiration(self) -> Self
If the key already exists, do not update the currently set expiration.
sourcepub fn only_if_exists(self) -> Self
pub fn only_if_exists(self) -> Self
Only set the value if this key already exists.
sourcepub fn only_if_vacant(self) -> Self
pub fn only_if_vacant(self) -> Self
Only set the value if this key isn’t present.
sourcepub async fn returning_previous(self) -> Result<Option<Value>, Error>
pub async fn returning_previous(self) -> Result<Option<Value>, Error>
Executes the Set operation, requesting the previous value be returned. If no change is made, None will be returned.
sourcepub async fn returning_previous_as<OtherV: for<'de> Deserialize<'de>>(
self
) -> Result<Option<OtherV>, Error>
pub async fn returning_previous_as<OtherV: for<'de> Deserialize<'de>>(
self
) -> Result<Option<OtherV>, Error>
Executes the Set operation, requesting the previous value be returned. If no change is made, None will be returned.
Trait Implementations
Auto Trait Implementations
impl<'a, KeyValue, V> !RefUnwindSafe for Builder<'a, KeyValue, V>
impl<'a, KeyValue, V> Send for Builder<'a, KeyValue, V> where
KeyValue: Sync,
V: Sync,
impl<'a, KeyValue, V> !Sync for Builder<'a, KeyValue, V>
impl<'a, KeyValue, V> Unpin for Builder<'a, KeyValue, V>
impl<'a, KeyValue, V> !UnwindSafe for Builder<'a, KeyValue, V>
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcepub fn borrow_mut(&mut self) -> &mut T
pub fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
impl<T> FutureExt for T where
T: Future + ?Sized,
impl<T> FutureExt for T where
T: Future + ?Sized,
fn map<U, F>(self, f: F) -> Map<Self, F> where
F: FnOnce(Self::Output) -> U,
fn map<U, F>(self, f: F) -> Map<Self, F> where
F: FnOnce(Self::Output) -> U,
Map this future’s output to a different type, returning a new future of the resulting type. Read more
fn map_into<U>(self) -> MapInto<Self, U> where
Self::Output: Into<U>,
fn map_into<U>(self) -> MapInto<Self, U> where
Self::Output: Into<U>,
Map this future’s output to a different type, returning a new future of the resulting type. Read more
fn then<Fut, F>(self, f: F) -> Then<Self, Fut, F> where
F: FnOnce(Self::Output) -> Fut,
Fut: Future,
fn then<Fut, F>(self, f: F) -> Then<Self, Fut, F> where
F: FnOnce(Self::Output) -> Fut,
Fut: Future,
Chain on a computation for when a future finished, passing the result of
the future to the provided closure f. Read more
fn left_future<B>(self) -> Either<Self, B> where
B: Future<Output = Self::Output>,
fn left_future<B>(self) -> Either<Self, B> where
B: Future<Output = Self::Output>,
Wrap this future in an Either future, making it the left-hand variant
of that Either. Read more
fn right_future<A>(self) -> Either<A, Self> where
A: Future<Output = Self::Output>,
fn right_future<A>(self) -> Either<A, Self> where
A: Future<Output = Self::Output>,
Wrap this future in an Either future, making it the right-hand variant
of that Either. Read more
fn into_stream(self) -> IntoStream<Self>
fn into_stream(self) -> IntoStream<Self>
Convert this future into a single element stream. Read more
fn flatten(self) -> Flatten<Self> where
Self::Output: Future,
fn flatten(self) -> Flatten<Self> where
Self::Output: Future,
Flatten the execution of this future when the output of this future is itself another future. Read more
fn flatten_stream(self) -> FlattenStream<Self> where
Self::Output: Stream,
fn flatten_stream(self) -> FlattenStream<Self> where
Self::Output: Stream,
Flatten the execution of this future when the successful result of this future is a stream. Read more
fn fuse(self) -> Fuse<Self>
fn fuse(self) -> Fuse<Self>
Fuse a future such that poll will never again be called once it has
completed. This method can be used to turn any Future into a
FusedFuture. Read more
fn inspect<F>(self, f: F) -> Inspect<Self, F> where
F: FnOnce(&Self::Output),
fn inspect<F>(self, f: F) -> Inspect<Self, F> where
F: FnOnce(&Self::Output),
Do something with the output of a future before passing it on. Read more
fn catch_unwind(self) -> CatchUnwind<Self> where
Self: UnwindSafe,
fn catch_unwind(self) -> CatchUnwind<Self> where
Self: UnwindSafe,
Catches unwinding panics while polling the future. Read more
Create a cloneable handle to this future where all handles will resolve to the same result. Read more
fn remote_handle(self) -> (Remote<Self>, RemoteHandle<Self::Output>)
fn remote_handle(self) -> (Remote<Self>, RemoteHandle<Self::Output>)
Turn this future into a future that yields () on completion and sends
its output to another future on a separate task. Read more
fn boxed<'a>(
self
) -> Pin<Box<dyn Future<Output = Self::Output> + Send + 'a, Global>> where
Self: 'a + Send,
fn boxed<'a>(
self
) -> Pin<Box<dyn Future<Output = Self::Output> + Send + 'a, Global>> where
Self: 'a + Send,
Wrap the future in a Box, pinning it. Read more
fn boxed_local<'a>(
self
) -> Pin<Box<dyn Future<Output = Self::Output> + 'a, Global>> where
Self: 'a,
fn boxed_local<'a>(
self
) -> Pin<Box<dyn Future<Output = Self::Output> + 'a, Global>> where
Self: 'a,
Wrap the future in a Box, pinning it. Read more
fn unit_error(self) -> UnitError<Self>
fn unit_error(self) -> UnitError<Self>
Turns a Future<Output = T> into a
TryFuture<Ok = T, Error = ()>. Read more
fn never_error(self) -> NeverError<Self>
fn never_error(self) -> NeverError<Self>
Turns a Future<Output = T> into a
TryFuture<Ok = T, Error = Never>. Read more
fn poll_unpin(&mut self, cx: &mut Context<'_>) -> Poll<Self::Output> where
Self: Unpin,
fn poll_unpin(&mut self, cx: &mut Context<'_>) -> Poll<Self::Output> where
Self: Unpin,
A convenience for calling Future::poll on Unpin future types.
fn now_or_never(self) -> Option<Self::Output>
fn now_or_never(self) -> Option<Self::Output>
Evaluates and consumes the future, returning the resulting output if
the future is ready after the first call to Future::poll. Read more
sourceimpl<F> IntoFuture for F where
F: Future,
impl<F> IntoFuture for F where
F: Future,
type Output = <F as Future>::Output
type Output = <F as Future>::Output
into_future)The output that the future will produce on completion.
type Future = F
type Future = F
into_future)Which kind of future are we turning this into?
sourcepub fn into_future(self) -> <F as IntoFuture>::Future
pub fn into_future(self) -> <F as IntoFuture>::Future
into_future)Creates a future from a value.
impl<Fut> TryFutureExt for Fut where
Fut: TryFuture + ?Sized,
impl<Fut> TryFutureExt for Fut where
Fut: TryFuture + ?Sized,
fn flatten_sink<Item>(self) -> FlattenSink<Self, Self::Ok> where
Self::Ok: Sink<Item>,
<Self::Ok as Sink<Item>>::Error == Self::Error,
fn flatten_sink<Item>(self) -> FlattenSink<Self, Self::Ok> where
Self::Ok: Sink<Item>,
<Self::Ok as Sink<Item>>::Error == Self::Error,
Flattens the execution of this future when the successful result of this
future is a [Sink]. Read more
fn map_ok<T, F>(self, f: F) -> MapOk<Self, F> where
F: FnOnce(Self::Ok) -> T,
fn map_ok<T, F>(self, f: F) -> MapOk<Self, F> where
F: FnOnce(Self::Ok) -> T,
Maps this future’s success value to a different value. Read more
fn map_ok_or_else<T, E, F>(self, e: E, f: F) -> MapOkOrElse<Self, F, E> where
F: FnOnce(Self::Ok) -> T,
E: FnOnce(Self::Error) -> T,
fn map_ok_or_else<T, E, F>(self, e: E, f: F) -> MapOkOrElse<Self, F, E> where
F: FnOnce(Self::Ok) -> T,
E: FnOnce(Self::Error) -> T,
Maps this future’s success value to a different value, and permits for error handling resulting in the same type. Read more
fn map_err<E, F>(self, f: F) -> MapErr<Self, F> where
F: FnOnce(Self::Error) -> E,
fn map_err<E, F>(self, f: F) -> MapErr<Self, F> where
F: FnOnce(Self::Error) -> E,
Maps this future’s error value to a different value. Read more
fn and_then<Fut, F>(self, f: F) -> AndThen<Self, Fut, F> where
F: FnOnce(Self::Ok) -> Fut,
Fut: TryFuture<Error = Self::Error>,
fn and_then<Fut, F>(self, f: F) -> AndThen<Self, Fut, F> where
F: FnOnce(Self::Ok) -> Fut,
Fut: TryFuture<Error = Self::Error>,
Executes another future after this one resolves successfully. The success value is passed to a closure to create this subsequent future. Read more
fn or_else<Fut, F>(self, f: F) -> OrElse<Self, Fut, F> where
F: FnOnce(Self::Error) -> Fut,
Fut: TryFuture<Ok = Self::Ok>,
fn or_else<Fut, F>(self, f: F) -> OrElse<Self, Fut, F> where
F: FnOnce(Self::Error) -> Fut,
Fut: TryFuture<Ok = Self::Ok>,
Executes another future if this one resolves to an error. The error value is passed to a closure to create this subsequent future. Read more
fn inspect_ok<F>(self, f: F) -> InspectOk<Self, F> where
F: FnOnce(&Self::Ok),
fn inspect_ok<F>(self, f: F) -> InspectOk<Self, F> where
F: FnOnce(&Self::Ok),
Do something with the success value of a future before passing it on. Read more
fn inspect_err<F>(self, f: F) -> InspectErr<Self, F> where
F: FnOnce(&Self::Error),
fn inspect_err<F>(self, f: F) -> InspectErr<Self, F> where
F: FnOnce(&Self::Error),
Do something with the error value of a future before passing it on. Read more
fn try_flatten(self) -> TryFlatten<Self, Self::Ok> where
Self::Ok: TryFuture,
<Self::Ok as TryFuture>::Error == Self::Error,
fn try_flatten(self) -> TryFlatten<Self, Self::Ok> where
Self::Ok: TryFuture,
<Self::Ok as TryFuture>::Error == Self::Error,
Flatten the execution of this future when the successful result of this future is another future. Read more
fn try_flatten_stream(self) -> TryFlattenStream<Self> where
Self::Ok: TryStream,
<Self::Ok as TryStream>::Error == Self::Error,
fn try_flatten_stream(self) -> TryFlattenStream<Self> where
Self::Ok: TryStream,
<Self::Ok as TryStream>::Error == Self::Error,
Flatten the execution of this future when the successful result of this future is a stream. Read more