timely::dataflow::operators::exchange

Trait Exchange

Source 
pub trait Exchange<D> {
    // Required method
    fn exchange(&self, route: impl FnMut(&D) -> u64 + 'static) -> Self;
}
Expand description

Exchange records between workers.

Required Methods§

Source

fn exchange(&self, route: impl FnMut(&D) -> u64 + 'static) -> Self

Exchange records between workers.

The closure supplied should map a reference to a record to a u64, whose value determines to which worker the record will be routed.

§Examples
use timely::dataflow::operators::{ToStream, Exchange, Inspect};

timely::example(|scope| {
    (0..10).to_stream(scope)
           .exchange(|x| *x)
           .inspect(|x| println!("seen: {:?}", x));
});

Dyn Compatibility§

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors§