Struct CacheConfig 

pub struct CacheConfig { /* private fields */ }

Configuration for creating a new cache instance.

Use the builder pattern to construct configuration:

use in_memory_cache::CacheConfig;
use std::time::Duration;

let config = CacheConfig::new()
    .max_capacity(10_000)
    .default_ttl(Duration::from_secs(300))
    .build();

Implementations

impl CacheConfig

pub fn new() -> Self

Create a new configuration builder with default values.

pub fn max_capacity(self, capacity: usize) -> Self

Set the maximum capacity of the cache.

When the cache reaches this capacity, the least recently used entry will be evicted to make room for new entries.

Arguments

• capacity - Maximum number of entries. Use 0 for unlimited (not recommended).

pub fn default_ttl(self, ttl: Duration) -> Self

Set the default TTL for entries.

Entries without an explicit TTL will use this value. Set to Duration::ZERO to disable default TTL.

pub fn cleanup_interval(self, interval: Duration) -> Self

Set the interval for background cleanup of expired entries.

The background task will run at this interval to remove expired entries. This is in addition to lazy expiration (entries checked on access).

pub fn background_cleanup(self, enabled: bool) -> Self

Enable or disable background cleanup.

When enabled, a background task periodically removes expired entries. When disabled, entries are only removed on access (lazy expiration).

pub fn build(self) -> Self

Build the final configuration.

This method validates the configuration and returns the final config.

pub fn get_max_capacity(&self) -> Option<usize>

Get the maximum capacity, if set.

pub fn get_default_ttl(&self) -> Option<Duration>

Get the default TTL, if set.

Trait Implementations

impl Clone for CacheConfig

fn clone(&self) -> CacheConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CacheConfig

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

Formats the value using the given formatter.

impl Default for CacheConfig

fn default() -> Self

Returns the “default value” for a type.