Struct QueryCache 

pub struct QueryCache<T> { /* private fields */ }

A generic query result cache with TTL and LRU eviction.

Implementations

impl<T: Clone> QueryCache<T>

pub fn new() -> Self

Create a new query cache with default configuration.

pub fn with_config(config: CacheConfig) -> Self

Create a new query cache with custom configuration.

pub fn get(&mut self, key: &CacheKey) -> Option<T>

Get a value from the cache.

pub fn insert(&mut self, key: CacheKey, value: T)

Insert a value into the cache.

pub fn insert_with_ttl( &mut self, key: CacheKey, value: T, ttl: Option<Duration>, )

Insert a value with a custom TTL.

pub fn invalidate(&mut self, key: &CacheKey) -> bool

Invalidate a specific cache entry.

pub fn clear(&mut self)

Clear all cache entries.

pub fn cleanup_expired(&mut self) -> usize

Remove expired entries.

pub fn stats(&self) -> &QueryCacheStats

Get cache statistics.

pub fn len(&self) -> usize

Get the number of entries in the cache.

pub fn is_empty(&self) -> bool

Check if the cache is empty.

pub fn config(&self) -> &CacheConfig

Get the cache configuration.

Trait Implementations

impl<T: Clone> Default for QueryCache<T>

fn default() -> Self

Returns the “default value” for a type.