Struct redis_driver::ZRandMember
source · [−]pub struct ZRandMember<'a, T>where
T: SortedSetCommands + ?Sized,{ /* private fields */ }Expand description
Builder for the zrandmember command
Implementations
sourceimpl<'a, T> ZRandMember<'a, T>where
T: SortedSetCommands + ?Sized,
impl<'a, T> ZRandMember<'a, T>where
T: SortedSetCommands + ?Sized,
sourcepub fn execute<E>(self) -> Pin<Box<dyn Future<Output = Result<E>> + 'a>>where
E: FromValue,
pub fn execute<E>(self) -> Pin<Box<dyn Future<Output = Result<E>> + 'a>>where
E: FromValue,
The randomly selected element, or nil when key does not exist.
sourcepub fn count(self, count: isize) -> ZRandMemberCount<'a, T>
pub fn count(self, count: isize) -> ZRandMemberCount<'a, T>
If the provided count argument is positive, return an array of distinct elements. The array’s length is either count or the sorted set’s cardinality (ZCARD), whichever is lower.
If called with a negative count, the behavior changes and the command is allowed to return the same element multiple times. In this case, the number of returned elements is the absolute value of the specified count.
Auto Trait Implementations
impl<'a, T: ?Sized> RefUnwindSafe for ZRandMember<'a, T>where
T: RefUnwindSafe,
impl<'a, T: ?Sized> Send for ZRandMember<'a, T>where
T: Sync,
impl<'a, T: ?Sized> Sync for ZRandMember<'a, T>where
T: Sync,
impl<'a, T: ?Sized> Unpin for ZRandMember<'a, T>
impl<'a, T: ?Sized> UnwindSafe for ZRandMember<'a, T>where
T: RefUnwindSafe,
Blanket Implementations
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> Instrument for T
impl<T> Instrument for T
sourcefn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
sourcefn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
sourceimpl<T> WithSubscriber for T
impl<T> WithSubscriber for T
sourcefn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>where
S: Into<Dispatch>,
fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>where
S: Into<Dispatch>,
Attaches the provided Subscriber to this type, returning a
WithDispatch wrapper. Read more
sourcefn with_current_subscriber(self) -> WithDispatch<Self>
fn with_current_subscriber(self) -> WithDispatch<Self>
Attaches the current default Subscriber to this type, returning a
WithDispatch wrapper. Read more