Struct mz_persist_client::internal::encoding::Rollup

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pub struct Rollup<T> {
    pub(crate) state: UntypedState<T>,
    pub(crate) diffs: Option<InlinedDiffs>,
}
Expand description

A struct that maps 1:1 with ProtoRollup.

Contains State, and optionally the diffs between (state.latest_rollup.seqno, state.seqno]

diffs is always expected to be Some when writing new rollups, but may be None when deserializing rollups that were persisted before we started inlining diffs.

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§state: UntypedState<T>§diffs: Option<InlinedDiffs>

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impl<T: Timestamp + Lattice + Codec64> Rollup<T>

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pub(crate) fn from(state: UntypedState<T>, diffs: Vec<VersionedData>) -> Self

Creates a StateRollup from a state and diffs from its last rollup.

The diffs must span the seqno range (state.last_rollup().seqno, state.seqno].

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pub(crate) fn from_untyped_state_without_diffs(state: UntypedState<T>) -> Self

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pub(crate) fn from_state_without_diffs( state: State<T>, key_codec: String, val_codec: String, ts_codec: String, diff_codec: String, ) -> Self

Trait Implementations§

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impl<T: Debug> Debug for Rollup<T>

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

Formats the value using the given formatter. Read more
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impl<T: Timestamp + Lattice + Codec64> RustType<ProtoRollup> for Rollup<T>

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fn into_proto(&self) -> ProtoRollup

Convert a Self into a Proto value.
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fn from_proto(x: ProtoRollup) -> Result<Self, TryFromProtoError>

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

Auto Trait Implementations§

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

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

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impl<T> Send for Rollup<T>
where T: Send + Sync,

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impl<T> Sync for Rollup<T>
where T: Sync + Send,

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

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impl<T> UnwindSafe for Rollup<T>

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. Read more
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impl<T, U> CastInto<U> for T
where U: CastFrom<T>,

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fn cast_into(self) -> U

Performs the cast.
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impl<T> CopyAs<T> for T

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fn copy_as(self) -> T

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> FutureExt for T

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

Attaches the provided Context to this type, returning a WithContext wrapper. Read more
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fn with_current_context(self) -> WithContext<Self>

Attaches the current Context to this type, returning a WithContext wrapper. Read more
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impl<T> Instrument for T

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

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

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

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impl<T> IntoRequest<T> for T

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fn into_request(self) -> Request<T>

Wrap the input message T in a tonic::Request
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impl<Unshared, Shared> IntoShared<Shared> for Unshared
where Shared: FromUnshared<Unshared>,

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fn into_shared(self) -> Shared

Creates a shared type from an unshared type.
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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<P, R> ProtoType<R> for P
where R: RustType<P>,

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impl<T> Same for T

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type Output = T

Should always be Self
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impl<'a, S, T> Semigroup<&'a S> for T
where T: Semigroup<S>,

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

The method of std::ops::AddAssign, for types that do not implement AddAssign.
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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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
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where T: RefUnwindSafe + Send + Sync,