Trait KvBlobCache 

pub trait KvBlobCache: Send + Sync {
    // Required methods
    fn get(&self, key: &str) -> Option<(Bytes, &'static str)>;
    fn put(&self, key: &str, payload: Bytes);
    fn contains(&self, key: &str) -> bool;
    fn clear(&self);

    // Provided method
    fn remove(&self, _key: &str) -> bool { ... }
}

Sync-only cache surface used by WombatKVKvStore. Implementations must be Send + Sync because the algorithm crate holds them behind Arc<dyn KvBlobCache>.

Required Methods

fn get(&self, key: &str) -> Option<(Bytes, &'static str)>

Sync read. Returns (bytes, op_label) on hit; op_label is a short telemetry tag like "load_mmap" or "load_foyer_ram".

fn put(&self, key: &str, payload: Bytes)

Sync write. Caches bytes for subsequent reads.

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

Sync existence check that does not materialize the payload.

fn clear(&self)

Drop all entries. Best-effort, implementations may leave disk files in place if removing them would race with concurrent readers.

Provided Methods

fn remove(&self, _key: &str) -> bool

Drop one entry by key. Best-effort: missing files succeed. Returns true if a file was actually removed. Default impl is a no-op so adding remove does not force every existing impl to implement it.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl KvBlobCache for FlatFileKvBlobCache