Trait shortcut::idx::RangeIndex

pub trait RangeIndex<T>: EqualityIndex<T> {
    fn between<'a>(
        &'a self, 
        _: Bound<&T>, 
        _: Bound<&T>
    ) -> Box<Iterator<Item = usize> + 'a>;
}

A RangeIndex is an index that, in addition to performing efficient equality lookups, can also perform efficient range queries.

Required Methods

fn between<'a>(
    &'a self,
    _: Bound<&T>,
    _: Bound<&T>
) -> Box<Iterator<Item = usize> + 'a>

Return an iterator that yields the indices of all rows whose value (in the column this index is assigned to) lies within the given Bounds.

Implementors

• impl<T: Ord + Eq> RangeIndex<T> for BTreeIndex<T>