Struct differential_dataflow::trace::implementations::merge_batcher::MergeBatcher

pub struct MergeBatcher<K, V, T, D> { /* private fields */ }

Creates batches from unordered tuples.

Trait Implementations

impl<K, V, T, D> Batcher for MergeBatcher<K, V, T, D>

where K: Ord + Clone, V: Ord + Clone, T: Timestamp, D: Semigroup,

fn frontier(&mut self) -> AntichainRef<'_, T>

The frontier of elements remaining after the most recent call to self.seal.

type Input = Vec<((K, V), T, D)>

Type pushed into the batcher.

type Output = ((K, V), T, D)

Type produced by the batcher.

type Time = T

Times at which batches are formed.

fn new( logger: Option<Logger<DifferentialEvent, WorkerIdentifier>>, operator_id: usize ) -> Self

Allocates a new empty batcher.

fn push_batch(&mut self, batch: RefOrMut<'_, Self::Input>)

Adds an unordered batch of elements to the batcher.

fn seal<B: Builder<Input = Self::Output, Time = Self::Time>>( &mut self, upper: Antichain<T> ) -> B::Output

Returns all updates not greater or equal to an element of upper.