Struct redis_driver::ZRangeStore

pub struct ZRangeStore<'a, T>where
    T: SortedSetCommands + ?Sized,{ /* private fields */ }

Builder for the zrangestore command

Implementations

impl<'a, T> ZRangeStore<'a, T>where
    T: SortedSetCommands + ?Sized,

pub fn sort_by(self, sort_by: ZRangeSortBy) -> Self

When the ByScore option is provided, the command behaves like ZRANGEBYSCORE and returns the range of elements from the sorted set having scores equal or between start and stop.

When the ByLex option is used, the command behaves like ZRANGEBYLEX and returns the range of elements from the sorted set between the start and stop lexicographical closed range intervals.

pub fn rev(self) -> Self

Using the REV option reverses the sorted set, with index 0 as the element with the highest score.

pub fn limit(self, offset: usize, count: isize) -> Self

The optional LIMIT argument can be used to obtain a sub-range from the matching elements (similar to SELECT LIMIT offset, count in SQL).

A negative count returns all elements from the offset.

Keep in mind that if offset is large, the sorted set needs to be traversed for offset elements before getting to the elements to return, which can add up to O(N) time complexity.

pub fn execute(self) -> Pin<Box<dyn Future<Output = Result<usize>> + 'a>>

Return

the number of elements in the resulting sorted set.