Trait SubjectTraversableDataset

pub trait SubjectTraversableDataset: Dataset {
    type Subjects<'a>: Iterator<Item = &'a Self::Resource>
       where Self: 'a;

    // Required method
    fn subjects(&self) -> Self::Subjects<'_>;

    // Provided method
    fn subject_count(&self) -> usize { ... }
}

Required Associated Types

type Subjects<'a>: Iterator<Item = &'a Self::Resource> where Self: 'a

Required Methods

fn subjects(&self) -> Self::Subjects<'_>

Provided Methods

fn subject_count(&self) -> usize

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

impl<G: SubjectTraversableGraph> SubjectTraversableDataset for G

type Subjects<'a> = <G as SubjectTraversableGraph>::GraphSubjects<'a> where Self: 'a

impl<R> SubjectTraversableDataset for IndexedBTreeDataset<R>

type Subjects<'a> = Subjects<'a, R> where R: 'a