Struct QueryCache 

pub struct QueryCache { /* private fields */ }

LRU cache for query results

Implementations

impl QueryCache

pub fn new(capacity: usize) -> Self

Create a new query cache with the given capacity

pub fn with_ttl(capacity: usize, ttl: Duration) -> Self

Create a new query cache with TTL

pub fn get(&self, key: &QueryKey) -> Option<Vec<Substitution>>

Get a cached result

pub fn insert(&self, key: QueryKey, solutions: Vec<Substitution>)

Insert a result into the cache

pub fn insert_with_ttl( &self, key: QueryKey, solutions: Vec<Substitution>, ttl: Duration, )

Insert a result with custom TTL

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

Invalidate a cached result

pub fn invalidate_predicate(&self, predicate_name: &str)

Invalidate all results for a predicate

pub fn clear(&self)

Clear the entire cache

pub fn stats(&self) -> Arc<CacheStats>

Get cache statistics

pub fn len(&self) -> usize

Get current cache size

pub fn is_empty(&self) -> bool

Check if cache is empty

pub fn capacity(&self) -> usize

Get cache capacity

pub fn evict_expired(&self) -> usize

Remove expired entries

Trait Implementations

impl Default for QueryCache

fn default() -> Self

Returns the “default value” for a type.