Struct Engine 

pub struct Engine { /* private fields */ }

Implementations

impl Engine

pub fn iter(&self, options: IteratorOptions) -> Iterator<'_>

Create a new iterator

pub fn list_keys(&self) -> Result<Vec<Bytes>>

list all keys in db

pub fn fold<F>(&self, f: F) -> Result<()>

where Self: Sized, F: Fn(Bytes, Bytes) -> bool,

operate on all key-value pairs in db, finish when f returns false

impl Engine

pub fn new_write_batch( &self, options: WriteBatchOptions, ) -> Result<WriteBatch<'_>>

Create a new write batch.

impl Engine

pub fn open(opts: Options) -> Result<Self>

open bitkv storage engine instance

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

close engine, release resources

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

sync current active data file to disk

pub fn get_engine_stat(&self) -> Result<Stat>

pub fn backup<P>(&self, dir_path: P) -> Result<()>

where P: AsRef<Path>,

backup data directory

pub fn put(&self, key: Bytes, value: Bytes) -> Result<()>

store a key/value pair, ensuring key isn’t null.

pub fn delete(&self, key: Bytes) -> Result<()>

pub fn get(&self, key: Bytes) -> Result<Bytes>

Retrieves the data associated with the specified key.

impl Engine

pub fn merge(&self) -> Result<()>

merge data directories, produce valid data and create hint file

Trait Implementations

impl Drop for Engine

fn drop(&mut self)

Executes the destructor for this type.