Struct FileStore 

pub struct FileStore { /* private fields */ }

File-system based state store

Stores key-value pairs as files in a directory. Keys containing “:” are mapped to subdirectories (e.g., “tenant:abc” → “tenant/abc”). Writes are atomic via temp file + rename.

Implementations

impl FileStore

pub fn open(dir: impl AsRef<Path>) -> Result<Self, StoreError>

Open or create a file-based store at the given directory

Trait Implementations

impl Debug for FileStore

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl StateStore for FileStore

fn save_checkpoint(&self, checkpoint: &Checkpoint) -> Result<(), StoreError>

Store a checkpoint

fn load_latest_checkpoint(&self) -> Result<Option<Checkpoint>, StoreError>

Load the latest checkpoint

fn load_checkpoint(&self, id: u64) -> Result<Option<Checkpoint>, StoreError>

Load a specific checkpoint by ID

fn list_checkpoints(&self) -> Result<Vec<u64>, StoreError>

List all checkpoint IDs

fn prune_checkpoints(&self, keep: usize) -> Result<usize, StoreError>

Delete old checkpoints, keeping only the most recent N

fn put(&self, key: &str, value: &[u8]) -> Result<(), StoreError>

Store arbitrary key-value data

fn get(&self, key: &str) -> Result<Option<Vec<u8>>, StoreError>

Retrieve arbitrary key-value data

fn delete(&self, key: &str) -> Result<(), StoreError>

Delete a key

fn flush(&self) -> Result<(), StoreError>

Flush all pending writes to disk