Struct prost_sled::ProtoDb

pub struct ProtoDb(_);

Wrapper around sled::Db that allows you to use types implementing prost::Message instead of raw bytes.

Implementations

impl ProtoDb

ProtoDb is a trait intended to be used to provide extension methods to sled::Db.

ProtoDb provides methods to make it easier store and retrieve protobuf encoded data in a Sled database.

pub fn get<K, T>(&self, key: K) -> Result<Option<T>> where
    K: AsRef<[u8]>,
    T: Message + Default, 

Get a value by its key.

pub fn update_and_fetch<K, V, F, T>(&self, key: K, f: F) -> Result<Option<T>> where
    K: AsRef<[u8]>,
    F: FnMut(Option<T>) -> Option<V>,
    V: Into<T>,
    T: Message + Default, 

Atomically retrieve then update a value.

pub fn insert<K, V, T>(&self, key: K, value: V) -> Result<Option<T>> where
    K: AsRef<[u8]>,
    V: Into<T>,
    T: Message + Default, 

Insert a value into the database.

Trait Implementations

impl From<Db> for ProtoDb

Escape hatch to get from a ProtoDb to a sled::Db in-case you need something more low level.

pub fn from(db: Db) -> Self

Performs the conversion.

impl From<ProtoDb> for Db

Convenience implementation to convert an existing sled::Db to a ProtoDb.

pub fn from(db: ProtoDb) -> Self

Performs the conversion.