Struct mz_stash::StashCollection
source · [−]pub struct StashCollection<K, V> {
pub(crate) id: Id,
pub(crate) _kv: PhantomData<(K, V)>,
}
Expand description
StashCollection
is like a differential dataflow Collection
, but the
state of the collection is durable.
A StashCollection
stores (key, value, timestamp, diff)
entries. The key
and value types are chosen by the caller; they must implement Ord
and
they must be serializable to and deserializable from bytes via the Codec
trait. The timestamp and diff types are fixed to i64
.
A StashCollection
maintains a since frontier and an upper frontier, as
described in the correctness vocabulary document. To advance the since
frontier, call compact
. To advance the upper frontier, call seal
. To
physically compact data beneath the since frontier, call consolidate
.
Fields
id: Id
_kv: PhantomData<(K, V)>
Implementations
sourceimpl<K, V> StashCollection<K, V> where
K: Data,
V: Data,
impl<K, V> StashCollection<K, V> where
K: Data,
V: Data,
sourcepub async fn make_batch<S: Stash>(
&self,
stash: &mut S
) -> Result<AppendBatch, StashError>
pub async fn make_batch<S: Stash>(
&self,
stash: &mut S
) -> Result<AppendBatch, StashError>
Create a new AppendBatch for this collection from its current upper.
pub fn append_to_batch(
&self,
batch: &mut AppendBatch,
key: &K,
value: &V,
diff: Diff
)
Trait Implementations
sourceimpl<K, V> Clone for StashCollection<K, V>
impl<K, V> Clone for StashCollection<K, V>
sourceimpl<K, V> From<i64> for StashCollection<K, V>
impl<K, V> From<i64> for StashCollection<K, V>
impl<K, V> Copy for StashCollection<K, V>
Auto Trait Implementations
impl<K, V> RefUnwindSafe for StashCollection<K, V> where
K: RefUnwindSafe,
V: RefUnwindSafe,
impl<K, V> Send for StashCollection<K, V> where
K: Send,
V: Send,
impl<K, V> Sync for StashCollection<K, V> where
K: Sync,
V: Sync,
impl<K, V> Unpin for StashCollection<K, V> where
K: Unpin,
V: Unpin,
impl<K, V> UnwindSafe for StashCollection<K, V> where
K: UnwindSafe,
V: UnwindSafe,
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> FutureExt for T
impl<T> FutureExt for T
sourcefn with_context(self, otel_cx: Context) -> WithContext<Self>
fn with_context(self, otel_cx: Context) -> WithContext<Self>
sourcefn with_current_context(self) -> WithContext<Self>
fn with_current_context(self) -> WithContext<Self>
sourceimpl<T> Instrument for T
impl<T> Instrument for T
sourcefn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
sourcefn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
sourceimpl<T> IntoRequest<T> for T
impl<T> IntoRequest<T> for T
sourcefn into_request(self) -> Request<T>
fn into_request(self) -> Request<T>
Wrap the input message T
in a tonic::Request
sourceimpl<T> ToOwned for T where
T: Clone,
impl<T> ToOwned for T where
T: Clone,
type Owned = T
type Owned = T
The resulting type after obtaining ownership.
sourcefn clone_into(&self, target: &mut T)
fn clone_into(&self, target: &mut T)
toowned_clone_into
)Uses borrowed data to replace owned data, usually by cloning. Read more
sourceimpl<T> WithSubscriber for T
impl<T> WithSubscriber for T
sourcefn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,
fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,
Attaches the provided Subscriber
to this type, returning a
WithDispatch
wrapper. Read more
sourcefn with_current_subscriber(self) -> WithDispatch<Self>
fn with_current_subscriber(self) -> WithDispatch<Self>
Attaches the current default Subscriber
to this type, returning a
WithDispatch
wrapper. Read more