Trait flechasdb::nbest::TakeNBestByKey

pub trait TakeNBestByKey<T>where
    Self: Sized,{
    // Required method
    fn n_best_by_key<K, F>(self, n: usize, f: F) -> NBestByKey<T, K, F>
       where F: FnMut(&T) -> K,
             K: PartialOrd;
}

Trait to select n-best elements in a collection.

Intended to be implemented for Iterator.

Required Methods

fn n_best_by_key<K, F>(self, n: usize, f: F) -> NBestByKey<T, K, F>where F: FnMut(&T) -> K, K: PartialOrd,

Selects n-best elements in the iterator.

Implementors

impl<I, T> TakeNBestByKey<T> for Iwhere I: Iterator<Item = T> + Sized,