Struct ListManager 

pub struct ListManager { /* private fields */ }

List data structure interface (Redis-compatible)

List is a doubly-linked list with O(1) push/pop at both ends.

Implementations

impl ListManager

pub async fn lpush<K>(&self, key: K, values: Vec<String>) -> Result<usize>

where K: AsRef<str>,

Push elements to left (head) of list

pub async fn rpush<K>(&self, key: K, values: Vec<String>) -> Result<usize>

where K: AsRef<str>,

Push elements to right (tail) of list

pub async fn lpop<K>(&self, key: K, count: Option<usize>) -> Result<Vec<String>>

where K: AsRef<str>,

Pop elements from left (head) of list

Arguments

• key - The list key
• count - Number of elements to pop (optional, defaults to 1)

pub async fn rpop<K>(&self, key: K, count: Option<usize>) -> Result<Vec<String>>

where K: AsRef<str>,

Pop elements from right (tail) of list

Arguments

• key - The list key
• count - Number of elements to pop (optional, defaults to 1)

pub async fn range<K>( &self, key: K, start: i64, stop: i64, ) -> Result<Vec<String>>

where K: AsRef<str>,

Get range of elements from list

pub async fn len<K>(&self, key: K) -> Result<usize>

where K: AsRef<str>,

Get list length

pub async fn index<K>(&self, key: K, index: i64) -> Result<Option<String>>

where K: AsRef<str>,

Get element at index

pub async fn set<K>(&self, key: K, index: i64, value: String) -> Result<bool>

where K: AsRef<str>,

Set element at index

pub async fn trim<K>(&self, key: K, start: i64, stop: i64) -> Result<bool>

where K: AsRef<str>,

Trim list to specified range

pub async fn rem<K>(&self, key: K, count: i64, value: String) -> Result<usize>

where K: AsRef<str>,

Remove elements from list

pub async fn insert<K>( &self, key: K, position: &str, pivot: String, value: String, ) -> Result<i64>

where K: AsRef<str>,

Insert element before/after pivot

pub async fn rpoplpush<S, D>( &self, source: S, destination: D, ) -> Result<Option<String>>

where S: AsRef<str>, D: AsRef<str>,

Pop from source and push to destination (atomic)

pub async fn pos<K>( &self, key: K, element: String, rank: i64, ) -> Result<Option<i64>>

where K: AsRef<str>,

Find first position of element

pub async fn lpushx<K>(&self, key: K, values: Vec<String>) -> Result<usize>

where K: AsRef<str>,

Push to left only if list exists

pub async fn rpushx<K>(&self, key: K, values: Vec<String>) -> Result<usize>

where K: AsRef<str>,

Push to right only if list exists

Trait Implementations

impl Clone for ListManager

fn clone(&self) -> ListManager

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.