Struct oasis_runtime_sdk::storage::MKVSStore

pub struct MKVSStore<M: MKVS> { /* private fields */ }

A key-value store backed by MKVS.

Implementations

impl<M: MKVS> MKVSStore<M>

pub fn new(parent: M) -> Self

Trait Implementations

impl<M: MKVS> NestedStore for MKVSStore<M>

type Inner = M

Type of the inner store.

fn commit(self) -> Self::Inner

Commit any changes to the underlying store.

fn rollback(self) -> Self::Inner

Rollback any changes.

fn has_pending_updates(&self) -> bool

Whether there are any store updates pending to be committed.

fn pending_update_byte_size(&self) -> usize

Size (in bytes) of any pending updates.

impl<M: MKVS> Store for MKVSStore<M>

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

Fetch entry with given key.

fn insert(&mut self, key: &[u8], value: &[u8])

Update entry with given key to the given value.

fn remove(&mut self, key: &[u8])

Remove entry with given key.

fn iter(&self) -> Box<dyn Iterator + '_>

Returns an iterator over the tree.

fn prefetch_prefixes(&mut self, prefixes: Vec<Prefix>, limit: u16)

Populate the in-memory tree with nodes for keys starting with given prefixes.