Struct QueryCache 

pub struct QueryCache { /* private fields */ }

Thread-safe two-tier query cache.

Implementations

impl QueryCache

pub fn new(tier1_capacity: usize, tier2_capacity: usize, ttl_secs: u64) -> Self

Create a new cache with given capacities and TTL in seconds.

pub fn get_query(&self, key: &str) -> Option<String>

Look up a cached query response. Key format: “endpoint:query:k”

pub fn insert_query(&self, key: String, json_response: String)

Cache a query response.

pub fn get_block_text(&self, block_idx: usize) -> Option<String>

Look up cached block text by index.

pub fn insert_block_text(&self, block_idx: usize, text: String)

Cache block text by index.

pub fn invalidate_all(&self)

Invalidate all cached entries (called on store/rebuild).

pub fn stats(&self) -> CacheStats

Get cache statistics.

pub fn make_key(endpoint: &str, query: &str, k: usize) -> String

Build a cache key for a query endpoint.