Struct QueryCache 

pub struct QueryCache { /* private fields */ }

Query result cache with LRU eviction policy

Implementations

impl QueryCache

pub fn new(capacity: usize) -> Self

Create a new query cache with the specified capacity

Arguments

• capacity - Maximum number of cached query results

pub fn get(&self, key: &QueryCacheKey) -> Option<QueryResult>

Get a cached query result if it exists

Arguments

• key - The query cache key

Returns

Some(QueryResult) if the query is cached, None otherwise

pub fn put(&self, key: QueryCacheKey, result: QueryResult)

Insert a query result into the cache

Arguments

• key - The query cache key
• result - The query result to cache

pub fn clear(&self)

Clear all cached results

pub fn len(&self) -> usize

Get the current cache size (number of entries)

pub fn is_empty(&self) -> bool

Check if the cache is empty

pub fn stats(&self) -> CacheStats

Get cache statistics