Struct PersistentCache 

pub struct PersistentCache { /* private fields */ }

Persistent cache wrapper that uses a backend.

Implementations

impl PersistentCache

pub fn new(backend: Box<dyn CacheBackend>, default_ttl: Duration) -> Self

Create a cache with a custom backend.

pub async fn redis(config: RedisConfig) -> Result<Self>

Create a Redis-backed cache.

pub async fn sqlite(config: SqliteConfig) -> Result<Self>

Create a SQLite-backed cache.

pub async fn get(&self, key: &str) -> Result<Option<OcrResult>>

Get a cached result.

pub async fn put(&self, key: &str, value: &OcrResult) -> Result<()>

Store a result in cache.

pub async fn put_with_ttl( &self, key: &str, value: &OcrResult, ttl: Duration, ) -> Result<()>

Store a result with custom TTL.

pub async fn contains(&self, key: &str) -> Result<bool>

Check if a key exists.

pub async fn remove(&self, key: &str) -> Result<()>

Remove a key.

pub async fn clear(&self) -> Result<()>

Clear all entries.

pub async fn stats(&self) -> Result<CacheStats>

Get cache statistics.

pub async fn len(&self) -> Result<usize>

Get number of entries.

pub async fn is_empty(&self) -> Result<bool>

Check if cache is empty.