Trait differential_dataflow::collection::trace::TraceRef

pub trait TraceRef<'a, K, T: 'a, V: 'a> {
    type VIterator: Iterator<Item = (&'a V, i32)> + Clone + 'a;
    type TIterator: Iterator<Item = (&'a T, Self::VIterator)> + Clone + 'a;
    fn trace(self, key: &K) -> Self::TIterator;
}

A reference to a Trace with a bound lifetime 'a.

Associated Types

type VIterator: Iterator<Item = (&'a V, i32)> + Clone + 'a

Iterator over references to values.

type TIterator: Iterator<Item = (&'a T, Self::VIterator)> + Clone + 'a

Iterator over times and VIterators.

Required Methods

fn trace(self, key: &K) -> Self::TIterator

Iterates over differences associated with the key.

Implementors

• impl<'a, K, L, T> TraceRef<'a, K, T, ()> for &'a Count<K, T, L> where
    K: Ord + 'a,
    L: Lookup<K, Offset> + 'a,
    T: Lattice + 'a, 
• impl<'a, K, V, L, T> TraceRef<'a, K, T, V> for &'a BasicTrace<K, T, V, L> where
    K: Data + 'a,
    V: Data + 'a,
    L: Lookup<K, Offset> + 'a,
    T: Lattice + 'a,