Struct QueryEngine 

pub struct QueryEngine;

The query engine supports all query operations.

Implementations

impl QueryEngine

pub fn new() -> Self

Create a new query engine.

pub fn traverse( &self, graph: &MemoryGraph, params: TraversalParams, ) -> AmemResult<TraversalResult>

Traverse from a starting node following specific edge types.

pub fn pattern<'a>( &self, graph: &'a MemoryGraph, params: PatternParams, ) -> AmemResult<Vec<&'a CognitiveEvent>>

Find nodes matching conditions.

pub fn temporal( &self, graph: &MemoryGraph, params: TemporalParams, ) -> AmemResult<TemporalResult>

Compare graph state across time ranges or sessions.

pub fn causal( &self, graph: &MemoryGraph, params: CausalParams, ) -> AmemResult<CausalResult>

Impact analysis: what depends on a given node?

pub fn similarity( &self, graph: &MemoryGraph, params: SimilarityParams, ) -> AmemResult<Vec<SimilarityMatchResult>>

Find similar nodes using feature vector cosine similarity.

pub fn context( &self, graph: &MemoryGraph, node_id: u64, depth: u32, ) -> AmemResult<SubGraph>

Get the full context for a node: the node itself, all edges, and connected nodes.

pub fn resolve<'a>( &self, graph: &'a MemoryGraph, node_id: u64, ) -> AmemResult<&'a CognitiveEvent>

Get the latest version of a node, following SUPERSEDES chains.

Trait Implementations

impl Default for QueryEngine

fn default() -> Self

Returns the “default value” for a type.