Trait timely::dataflow::operators::partition::Partition
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pub trait Partition<G: Scope, D: Data, D2: Data, F: Fn(D) -> (u64, D2)> { fn partition(&self, parts: u64, route: F) -> Vec<Stream<G, D2>>; }
Partition a stream of records into multiple streams.
Required Methods
fn partition(&self, parts: u64, route: F) -> Vec<Stream<G, D2>>
Produces parts
output streams, containing records produced and assigned by route
.
Examples
use timely::dataflow::operators::{ToStream, Partition, Inspect}; timely::example(|scope| { let streams = (0..10).to_stream(scope) .partition(3, |x| (x % 3, x)); streams[0].inspect(|x| println!("seen 0: {:?}", x)); streams[1].inspect(|x| println!("seen 1: {:?}", x)); streams[2].inspect(|x| println!("seen 2: {:?}", x)); });