Struct mz_persist_client::internal::state::HollowBatch

source ·
pub struct HollowBatch<T> {
    pub desc: Description<T>,
    pub len: usize,
    pub(crate) parts: Vec<BatchPart<T>>,
    pub(crate) run_splits: Vec<usize>,
    pub(crate) run_meta: Vec<RunMeta>,
}
Expand description

A Batch but with the updates themselves stored externally.

Fields§

§desc: Description<T>

Describes the times of the updates in the batch.

§len: usize

The number of updates in the batch.

§parts: Vec<BatchPart<T>>

Pointers usable to retrieve the updates.

§run_splits: Vec<usize>

Runs of sequential sorted batch parts, stored as indices into parts. ex.

    parts=[p1, p2, p3], runs=[]     --> run  is  [p1, p2, p2]
    parts=[p1, p2, p3], runs=[1]    --> runs are [p1] and [p2, p3]
    parts=[p1, p2, p3], runs=[1, 2] --> runs are [p1], [p2], [p3]
§run_meta: Vec<RunMeta>

Run-level metadata: the first entry has metadata for the first run, and so on. If there’s no corresponding entry for a particular run, it’s assumed to be RunMeta::default().

Implementations§

source§

impl<T> HollowBatch<T>

source

pub(crate) fn new( desc: Description<T>, parts: Vec<BatchPart<T>>, len: usize, run_meta: Vec<RunMeta>, run_splits: Vec<usize>, ) -> Self

Construct an in-memory hollow batch from the given metadata.

This method checks that runs is a sequence of valid indices into parts. The caller is responsible for ensuring that the defined runs are valid.

len should represent the number of valid updates in the referenced parts.

source

pub(crate) fn new_run( desc: Description<T>, parts: Vec<BatchPart<T>>, len: usize, ) -> Self

Construct a batch of a single run with default metadata. Mostly interesting for tests.

source

pub(crate) fn empty(desc: Description<T>) -> Self

An empty hollow batch, representing no updates over the given desc.

source

pub(crate) fn runs(&self) -> impl Iterator<Item = (&RunMeta, &[BatchPart<T>])>

source

pub(crate) fn inline_bytes(&self) -> usize

source

pub fn is_empty(&self) -> bool

source

pub fn part_count(&self) -> usize

source

pub fn encoded_size_bytes(&self) -> usize

The sum of the encoded sizes of all parts in the batch.

source§

impl<T: Timestamp + TotalOrder> HollowBatch<T>

source

pub(crate) fn rewrite_ts( &mut self, frontier: &Antichain<T>, new_upper: Antichain<T>, ) -> Result<(), String>

Trait Implementations§

source§

impl<T: Clone> Clone for HollowBatch<T>

source§

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

Returns a copy of the value. Read more
1.0.0 · source§

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

Performs copy-assignment from source. Read more
source§

impl<T: Debug> Debug for HollowBatch<T>

source§

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
source§

impl<T: Ord> Ord for HollowBatch<T>

source§

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other. Read more
1.21.0 · source§

fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
1.21.0 · source§

fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
1.50.0 · source§

fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized + PartialOrd,

Restrict a value to a certain interval. Read more
source§

impl<T: PartialEq> PartialEq for HollowBatch<T>

source§

fn eq(&self, other: &HollowBatch<T>) -> bool

Tests for self and other values to be equal, and is used by ==.
1.0.0 · source§

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
source§

impl<T: Ord> PartialOrd for HollowBatch<T>

source§

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
1.0.0 · source§

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator. Read more
1.0.0 · source§

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 · source§

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator. Read more
1.0.0 · source§

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator. Read more
source§

impl<T: Timestamp + Codec64> RustType<ProtoHollowBatch> for HollowBatch<T>

source§

fn into_proto(&self) -> ProtoHollowBatch

Convert a Self into a Proto value.
source§

fn from_proto(proto: ProtoHollowBatch) -> Result<Self, TryFromProtoError>

Consume and convert a Proto back into a Self value. Read more
source§

fn into_proto_owned(self) -> Proto

A zero clone version of Self::into_proto that types can optionally implement, otherwise, the default implementation delegates to Self::into_proto.
source§

impl<T: Serialize> Serialize for HollowBatch<T>

source§

fn serialize<S: Serializer>(&self, s: S) -> Result<S::Ok, S::Error>

Serialize this value into the given Serde serializer. Read more
source§

impl<T: Eq> Eq for HollowBatch<T>

source§

impl<T> StructuralPartialEq for HollowBatch<T>

Auto Trait Implementations§

§

impl<T> Freeze for HollowBatch<T>
where T: Freeze,

§

impl<T> RefUnwindSafe for HollowBatch<T>
where T: RefUnwindSafe,

§

impl<T> Send for HollowBatch<T>
where T: Send,

§

impl<T> Sync for HollowBatch<T>
where T: Sync,

§

impl<T> Unpin for HollowBatch<T>
where T: Unpin,

§

impl<T> UnwindSafe for HollowBatch<T>

Blanket Implementations§

source§

impl<T> Any for T
where T: 'static + ?Sized,

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
source§

impl<T> Borrow<T> for T
where T: ?Sized,

source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
source§

impl<T, U> CastInto<U> for T
where U: CastFrom<T>,

source§

fn cast_into(self) -> U

Performs the cast.
source§

impl<T> CloneToUninit for T
where T: Clone,

source§

default unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
source§

impl<Q, K> Comparable<K> for Q
where Q: Ord + ?Sized, K: Borrow<Q> + ?Sized,

source§

fn compare(&self, key: &K) -> Ordering

Compare self to key and return their ordering.
source§

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

source§

fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
source§

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

source§

fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
source§

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

source§

fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
source§

impl<T> From<T> for T

source§

fn from(t: T) -> T

Returns the argument unchanged.

source§

impl<T> FromRef<T> for T
where T: Clone,

source§

fn from_ref(input: &T) -> T

Converts to this type from a reference to the input type.
source§

impl<T> FutureExt for T

source§

fn with_context(self, otel_cx: Context) -> WithContext<Self>

Attaches the provided Context to this type, returning a WithContext wrapper. Read more
source§

fn with_current_context(self) -> WithContext<Self>

Attaches the current Context to this type, returning a WithContext wrapper. Read more
source§

impl<T> Instrument for T

source§

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
source§

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
source§

impl<T, U> Into<U> for T
where U: From<T>,

source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

source§

impl<T> IntoRequest<T> for T

source§

fn into_request(self) -> Request<T>

Wrap the input message T in a tonic::Request
source§

impl<Unshared, Shared> IntoShared<Shared> for Unshared
where Shared: FromUnshared<Unshared>,

source§

fn into_shared(self) -> Shared

Creates a shared type from an unshared type.
source§

impl<T> Pointable for T

source§

const ALIGN: usize = _

The alignment of pointer.
§

type Init = T

The type for initializers.
source§

unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
source§

unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
source§

unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
source§

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
source§

impl<T> PreferredContainer for T
where T: Ord + Clone + 'static,

§

type Container = Vec<T>

The preferred container for the type.
source§

impl<T> ProgressEventTimestamp for T
where T: Data + Debug + Any,

source§

fn as_any(&self) -> &(dyn Any + 'static)

Upcasts this ProgressEventTimestamp to Any. Read more
source§

fn type_name(&self) -> &'static str

Returns the name of the concrete type of this object. Read more
source§

impl<P, R> ProtoType<R> for P
where R: RustType<P>,

source§

impl<T> Same for T

§

type Output = T

Should always be Self
source§

impl<'a, S, T> Semigroup<&'a S> for T
where T: Semigroup<S>,

source§

fn plus_equals(&mut self, rhs: &&'a S)

The method of std::ops::AddAssign, for types that do not implement AddAssign.
source§

impl<T> ToOwned for T
where T: Clone,

§

type Owned = T

The resulting type after obtaining ownership.
source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

§

type Error = Infallible

The type returned in the event of a conversion error.
source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
source§

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

source§

fn vzip(self) -> V

source§

impl<T> WithSubscriber for T

source§

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
source§

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more
source§

impl<T> Allocation for T
where T: RefUnwindSafe + Send + Sync,

source§

impl<T> Data for T
where T: Data + Ord + Debug,

source§

impl<T> Data for T
where T: Clone + 'static,