Enum EvictionPolicy 

pub enum EvictionPolicy {
    NoEviction,
    AllKeysLru,
    AllKeysLfu,
    AllKeysRandom,
    VolatileLru,
    VolatileLfu,
    VolatileRandom,
    VolatileTtl,
}

Maxmemory eviction policy. Mirror of kevy_config::EvictionPolicy — duplicated here so kevy-store stays a leaf crate (no kevy-config dep).

Variants

NoEviction

Refuse writes once maxmemory is hit. Default.

AllKeysLru

Approximated LRU across all keys.

AllKeysLfu

Approximated LFU across all keys.

AllKeysRandom

Random key across all keys.

VolatileLru

Approximated LRU across keys with a TTL.

VolatileLfu

Approximated LFU across keys with a TTL.

VolatileRandom

Random key from those with a TTL.

VolatileTtl

Key with the shortest remaining TTL.

Implementations

impl EvictionPolicy

pub fn uses_lru(self) -> bool

Whether the policy ranks candidates by LRU clock (read-touches matter).

pub fn uses_lfu(self) -> bool

Whether the policy ranks candidates by LFU counter (read-touches and log-counter increments matter).

pub fn is_volatile(self) -> bool

Whether the policy restricts eviction to keys that carry a TTL.

Trait Implementations

impl Clone for EvictionPolicy

fn clone(&self) -> EvictionPolicy

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for EvictionPolicy

impl Debug for EvictionPolicy

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

Formats the value using the given formatter.

impl Default for EvictionPolicy

fn default() -> EvictionPolicy

Returns the “default value” for a type.

impl Eq for EvictionPolicy

impl PartialEq for EvictionPolicy

fn eq(&self, other: &EvictionPolicy) -> 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 StructuralPartialEq for EvictionPolicy