Struct kaspa_database::prelude::CachedDbItem

pub struct CachedDbItem<T> { /* private fields */ }

A cached DB item with concurrency support

Implementations

impl<T> CachedDbItem<T>

pub fn new(db: Arc<DB>, key: Vec<u8>) -> Self

pub fn read(&self) -> Result<T, StoreError>where T: Clone + DeserializeOwned,

pub fn write( &mut self, writer: impl DbWriter, item: &T ) -> Result<(), StoreError>where T: Clone + Serialize,

pub fn remove(&mut self, writer: impl DbWriter) -> Result<(), StoreError>

pub fn update<F>( &mut self, writer: impl DbWriter, op: F ) -> Result<T, StoreError>where T: Clone + Serialize + DeserializeOwned, F: Fn(T) -> T,

Trait Implementations

impl<T: Clone> Clone for CachedDbItem<T>

fn clone(&self) -> CachedDbItem<T>

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.