Struct InMemoryEdgeStore 

pub struct InMemoryEdgeStore<V: Clone> { /* private fields */ }

A HashMap-backed EdgeStore for any Clone edge type.

Implementations

impl<V: Clone> InMemoryEdgeStore<V>

pub fn new() -> Self

Create an empty store.

pub fn len(&self) -> usize

Number of edges currently stored.

pub fn is_empty(&self) -> bool

Returns true if the store is empty.

Trait Implementations

impl<V: Debug + Clone> Debug for InMemoryEdgeStore<V>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<V: Default + Clone> Default for InMemoryEdgeStore<V>

fn default() -> InMemoryEdgeStore<V>

Returns the “default value” for a type.

impl<V: Clone + HasEdgeId> EdgeStore for InMemoryEdgeStore<V>

type Edge = V

The edge value type stored and retrieved by this implementation.

fn get_edge(&self, id: EdgeId) -> Result<&V, StoreError>

Retrieve an edge by its ID.

fn put_edge(&mut self, edge: V) -> Result<(), StoreError>

Insert or replace an edge.

fn delete_edge(&mut self, id: EdgeId) -> Result<(), StoreError>

Delete an edge by ID. Returns StoreError::NotFound if absent.

fn query_edges(&self, query: &Query) -> Result<QueryResult<&V>, StoreError>

Return a paged, optionally-filtered collection of edges.