pub struct VarTypedShard<'tree, K: Key, T: Send + Sync, C: Codec<T> + Clone, H: TypedWriteHook<K, T>> { /* private fields */ }Expand description
Handle for atomic multi-key operations within a single shard.
Obtained via VarTypedTree::atomic. The shard lock is held for the
lifetime of this struct — keep the closure short.
The hook is not fired for operations performed through this handle.
Implementations§
Source§impl<K: Key, T: Send + Sync, C: Codec<T> + Clone, H: TypedWriteHook<K, T>> VarTypedShard<'_, K, T, C, H>
impl<K: Key, T: Send + Sync, C: Codec<T> + Clone, H: TypedWriteHook<K, T>> VarTypedShard<'_, K, T, C, H>
pub fn put(&mut self, key: &K, value: &T) -> DbResult<()>
pub fn insert(&mut self, key: &K, value: &T) -> DbResult<()>
pub fn delete(&mut self, key: &K) -> DbResult<bool>
pub fn get(&self, key: &K) -> Option<T>
pub fn get_or_err(&self, key: &K) -> DbResult<T>
pub fn contains(&self, key: &K) -> bool
Trait Implementations§
impl<K: Key, T: Send + Sync, C: Codec<T> + Clone, H: TypedWriteHook<K, T>> Send for VarTypedShard<'_, K, T, C, H>
Auto Trait Implementations§
impl<'tree, K, T, C, H> Freeze for VarTypedShard<'tree, K, T, C, H>
impl<'tree, K, T, C, H> !RefUnwindSafe for VarTypedShard<'tree, K, T, C, H>
impl<'tree, K, T, C, H> !Sync for VarTypedShard<'tree, K, T, C, H>
impl<'tree, K, T, C, H> Unpin for VarTypedShard<'tree, K, T, C, H>
impl<'tree, K, T, C, H> UnsafeUnpin for VarTypedShard<'tree, K, T, C, H>
impl<'tree, K, T, C, H> !UnwindSafe for VarTypedShard<'tree, K, T, C, H>
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<T> Instrument for T
impl<T> Instrument for T
Source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
Source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
Source§impl<T> IntoEither for T
impl<T> IntoEither for T
Source§fn into_either(self, into_left: bool) -> Either<Self, Self>
fn into_either(self, into_left: bool) -> Either<Self, Self>
Converts
self into a Left variant of Either<Self, Self>
if into_left is true.
Converts self into a Right variant of Either<Self, Self>
otherwise. Read moreSource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
Converts
self into a Left variant of Either<Self, Self>
if into_left(&self) returns true.
Converts self into a Right variant of Either<Self, Self>
otherwise. Read more