Trait Query

pub trait Query<I, V>
where
    I: Identity,
    V: Identifiable<I>,
{
    // Required methods
    fn query(&self, identifier: &I) -> Option<&V>;
    fn all(&self) -> Vec<&V>;

    // Provided method
    fn create_index(&self) -> HashMap<I, Link<'_, I, V>> { ... }
}

Be able to query some type given an identifier. It must return a type that can be queried for more values like itself.

Query a datastore for a type that can be used to find more like it

Required Methods

fn query(&self, identifier: &I) -> Option<&V>

fn all(&self) -> Vec<&V>

Provided Methods

fn create_index(&self) -> HashMap<I, Link<'_, I, V>>

Implementations on Foreign Types

impl<'a> Query<ChunkId, Chunk<'a>> for Chunks<'a>

fn query(&self, identifier: &ChunkId) -> Option<&Chunk<'a>>

fn all(&self) -> Vec<&Chunk<'a>>

impl<'a> Query<ModuleIdentifier, Module<'a>> for Modules<'a>

fn query(&self, _identifier: &ModuleIdentifier) -> Option<&Module<'a>>

fn all(&self) -> Vec<&Module<'a>>

fn create_index( &self, ) -> HashMap<ModuleIdentifier, Link<'_, ModuleIdentifier, Module<'a>>>

impl<'a, I, V> Query<I, V> for HashMap<I, Link<'a, I, V>>

where I: Identity, V: Identifiable<I>,

fn query(&self, identifier: &I) -> Option<&V>

fn all(&self) -> Vec<&V>

impl<'a, I, V, T> Query<I, V> for &'a T

where T: Query<I, V>, I: Identity, V: Identifiable<I>,

fn query(&self, identifier: &I) -> Option<&V>

fn all(&self) -> Vec<&V>

Implementors

impl<T> Query<<T as GraphDefinition>::Id, Node<T>> for ConcreteGraph<T>

where T: GraphDefinition,