Struct differential_dataflow::trace::wrappers::filter::BatchFilter

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pub struct BatchFilter<B, F> { /* private fields */ }
Expand description

Wrapper to provide batch to nested scope.

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impl<B, F> BatchFilter<B, F>
where B: BatchReader,

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pub fn make_from(batch: B, logic: F) -> Self

Makes a new batch wrapper

Trait Implementations§

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impl<B, F> BatchReader for BatchFilter<B, F>
where B: BatchReader, F: FnMut(B::Key<'_>, B::Val<'_>) -> bool + Clone + 'static,

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type Key<'a> = <B as BatchReader>::Key<'a>

Key by which updates are indexed.
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type KeyOwned = <B as BatchReader>::KeyOwned

Owned version of the above.
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type Val<'a> = <B as BatchReader>::Val<'a>

Values associated with keys.
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type Time = <B as BatchReader>::Time

Timestamps associated with updates
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type Diff = <B as BatchReader>::Diff

Associated update.
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type Cursor = BatchCursorFilter<<B as BatchReader>::Cursor, F>

The type used to enumerate the batch’s contents.
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fn cursor(&self) -> Self::Cursor

Acquires a cursor to the batch’s contents.
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fn len(&self) -> usize

The number of updates in the batch.
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fn description(&self) -> &Description<B::Time>

Describes the times of the updates in the batch.
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fn is_empty(&self) -> bool

True if the batch is empty.
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fn lower(&self) -> &Antichain<Self::Time>

All times in the batch are greater or equal to an element of lower.
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fn upper(&self) -> &Antichain<Self::Time>

All times in the batch are not greater or equal to any element of upper.
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impl<B: Clone, F: Clone> Clone for BatchFilter<B, F>

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fn clone(&self) -> BatchFilter<B, F>

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

Auto Trait Implementations§

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impl<B, F> Freeze for BatchFilter<B, F>
where B: Freeze, F: Freeze,

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impl<B, F> RefUnwindSafe for BatchFilter<B, F>

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impl<B, F> Send for BatchFilter<B, F>
where B: Send, F: Send,

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impl<B, F> Sync for BatchFilter<B, F>
where B: Sync, F: Sync,

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impl<B, F> Unpin for BatchFilter<B, F>
where B: Unpin, F: Unpin,

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impl<B, F> UnwindSafe for BatchFilter<B, F>
where B: UnwindSafe, F: UnwindSafe,

Blanket Implementations§

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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<R, O, T> CopyOnto<ConsecutiveOffsetPairs<R, O>> for T
where R: Region<Index = (usize, usize)>, O: OffsetContainer<usize>, T: CopyOnto<R>,

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fn copy_onto( self, target: &mut ConsecutiveOffsetPairs<R, O> ) -> <ConsecutiveOffsetPairs<R, O> as Region>::Index

Copy self into the target container, returning an index that allows to look up the corresponding read item.
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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, 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<R, T> PushInto<FlatStack<R>> for T
where R: Region + Clone + 'static, T: CopyOnto<R>,

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fn push_into(self, target: &mut FlatStack<R>)

Push self into the target container.
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impl<T> PushInto<Vec<T>> for T

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fn push_into(self, target: &mut Vec<T>)

Push self into the target container.
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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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<T> Data for T
where T: Clone + 'static,