Struct AOFBackend 

pub struct AOFBackend { /* private fields */ }

Persistent storage backend using AOF (Append-Only File)

Implementations

impl AOFBackend

pub fn new<P: AsRef<Path>>(path: P) -> Result<Self>

Create a new AOF storage backend

pub fn load_from_aof(&mut self) -> Result<()>

Load existing data from AOF file

Trait Implementations

impl StorageBackend for AOFBackend

Available on crate feature aof only.

fn put(&mut self, key: &[u8], item: &DbItem) -> Result<()>

Insert or update a key-value pair

fn get(&self, key: &[u8]) -> Result<Option<DbItem>>

Get a value by key

fn delete(&mut self, key: &[u8]) -> Result<Option<DbItem>>

Delete a key and return the old value if it existed

fn contains_key(&self, key: &[u8]) -> Result<bool>

Check if a key exists

fn keys_with_prefix(&self, prefix: &[u8]) -> Result<Vec<Bytes>>

Get all keys with a given prefix

fn scan_prefix(&self, prefix: &[u8]) -> Result<BTreeMap<Bytes, DbItem>>

Get all key-value pairs with a given prefix

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

Get the total number of keys

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

Check if the storage is empty

fn sync(&mut self) -> Result<()>

Flush any pending writes to persistent storage

fn close(&mut self) -> Result<()>

Close the storage backend

fn stats(&self) -> Result<StorageStats>

Get storage statistics

fn batch(&mut self, ops: &[StorageOp]) -> Result<()>

Batch operation support

fn iter(&self) -> Result<Box<dyn Iterator<Item = (Bytes, DbItem)> + '_>>

Iterator over all key-value pairs

fn cleanup_expired(&mut self, now: SystemTime) -> Result<usize>

Cleanup expired items (for TTL support)