Struct MemoryStore 

pub struct MemoryStore { /* private fields */ }

In-memory store of nodes and edges.

Implementations

impl MemoryStore

pub fn new() -> Self

Construct an empty store.

Trait Implementations

impl Clone for MemoryStore

fn clone(&self) -> MemoryStore

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for MemoryStore

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

Formats the value using the given formatter.

impl Default for MemoryStore

fn default() -> MemoryStore

Returns the “default value” for a type.

impl GraphBackend for MemoryStore

type Error = MemoryError

Error type returned by this backend.

fn init(&mut self) -> Result<(), Self::Error>

Initialize the backend (create tables/files, run migrations).

fn write_nodes(&mut self, nodes: &[Node]) -> Result<(), Self::Error>

Persist a batch of nodes.

fn write_edges(&mut self, edges: &[Edge]) -> Result<(), Self::Error>

Persist a batch of edges.

fn read_nodes(&self) -> Result<Vec<Node>, Self::Error>

Read all nodes.

fn read_edges(&self) -> Result<Vec<Edge>, Self::Error>

Read all edges.

fn find_nodes_by_type(&self, kind: NodeType) -> Result<Vec<Node>, Self::Error>

Find nodes by type.

fn neighbors( &self, node_id: &str, edge_type: Option<EdgeType>, ) -> Result<Vec<Edge>, Self::Error>

Find outgoing edges from a node, optionally filtered by edge type.

fn clear(&mut self) -> Result<(), Self::Error>

Clear all data.