Enum fred::types::ClusterHash

pub enum ClusterHash {
    FirstKey,
    FirstValue,
    Random,
    Offset(usize),
    Custom(u16),
}

A cluster hashing policy.

Variants

FirstKey

Hash the first string or bytes value in the arguments. (Default)

FirstValue

Hash the first argument regardless of type.

Random

Use a random node in the cluster.

Offset(usize)

Hash the value with the provided offset in the arguments array.

Custom(u16)

Provide a custom hash slot value.

Implementations

impl ClusterHash

pub fn hash(&self, args: &[RedisValue]) -> Option<u16>

Hash the provided arguments.

pub fn find_key<'a>(&self, args: &'a [RedisValue]) -> Option<&'a [u8]>

Find the key to hash with the provided arguments.

Trait Implementations

impl Clone for ClusterHash

fn clone(&self) -> ClusterHash

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ClusterHash

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ClusterHash

fn default() -> Self

Returns the “default value” for a type.

impl From<&[u8]> for ClusterHash

fn from(d: &[u8]) -> Self

Converts to this type from the input type.

impl From<&str> for ClusterHash

fn from(d: &str) -> Self

Converts to this type from the input type.

impl From<Option<u16>> for ClusterHash

fn from(hash_slot: Option<u16>) -> Self

Converts to this type from the input type.

impl From<u16> for ClusterHash

fn from(slot: u16) -> Self

Converts to this type from the input type.

impl PartialEq for ClusterHash

fn eq(&self, other: &ClusterHash) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for ClusterHash

impl StructuralPartialEq for ClusterHash