Struct differential_dataflow::trace::implementations::Batcher

pub struct Batcher<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,

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

Type of update pushed into the batcher.

type Time = T

Times at which batches are formed.

fn new() -> Self

Allocates a new empty batcher.

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

Adds an unordered batch of elements to the batcher.

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

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

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

Returns the lower envelope of contained update times.