Struct QueryResultCache 

pub struct QueryResultCache<V: Clone> { /* private fields */ }

Query result cache with TTL and LRU eviction

Thread-safe cache implementation optimized for concurrent SPARQL query workloads. Uses read-write locks with minimal contention and efficient memory management.

Implementations

impl<V: Clone> QueryResultCache<V>

pub fn new(config: CacheConfig) -> Self

Create a new query result cache with the given configuration

pub fn put(&self, key: String, value: V)

Put a value in the cache with default TTL

pub fn put_with_ttl(&self, key: String, value: V, ttl: Duration)

Put a value in the cache with custom TTL

pub fn get(&self, key: &str) -> Option<V>

Get a value from the cache

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

Invalidate (remove) a cache entry

pub fn clear(&self)

Clear all cache entries

pub fn len(&self) -> usize

Get current cache size (number of entries)

pub fn is_empty(&self) -> bool

Check if cache is empty

pub fn memory_usage(&self) -> u64

Get current memory usage in bytes

pub fn stats(&self) -> CacheStats

Get cache statistics

Trait Implementations

impl<V: Clone> Default for QueryResultCache<V>

fn default() -> Self

Returns the “default value” for a type.