Struct KgStore 

pub struct KgStore { /* private fields */ }

Full-featured Arrow-native knowledge graph store.

Provides:

• Namespace prefix management (expand/compact URIs)
• Pattern-based triple queries
• Keyword search (case-insensitive substring matching)
• Knowledge gap tracking
• Bulk add operations

Implementations

impl KgStore

pub fn new() -> Self

Create a new store with standard RDF prefixes and a single “default” namespace.

pub fn with_config( namespaces: &[&str], default_namespace: &str, layer: Option<u8>, ) -> Self

Create with custom namespace partitions and layer.

pub fn bind_prefix(&mut self, prefix: &str, uri: &str)

Bind a namespace prefix (e.g., "rdf" → "http://www.w3.org/...").

pub fn expand_uri(&self, value: &str) -> String

Expand a prefixed URI (e.g., “rdf:type” → full URI). Returns the original string if no prefix matches.

pub fn compact_uri(&self, uri: &str) -> String

Compact a full URI to prefixed form. Matches longest prefix first to avoid ambiguity.

pub fn prefixes(&self) -> &HashMap<String, String>

Get all bound prefixes.

pub fn add_triple( &mut self, subject: &str, predicate: &str, object: &str, source: Option<&str>, confidence: f64, ) -> Result<String, StoreError>

Add a triple with automatic namespace expansion on URIs.

pub fn add_triples( &mut self, triples: &[(&str, &str, &str, f64)], source: Option<&str>, ) -> Result<Vec<String>, StoreError>

Add multiple triples in batch.

pub fn query( &self, subject: Option<&str>, predicate: Option<&str>, object: Option<&str>, ) -> Result<Vec<StoredTriple>, StoreError>

Query by (s, p, o) pattern. None means wildcard. URIs are expanded.

pub fn search_by_keywords( &self, keywords: &[&str], ) -> Vec<(StoredTriple, String)>

Search by keywords (case-insensitive substring match on s/p/o).

pub fn clear(&mut self)

Clear all triples.

pub fn record_knowledge_gap( &mut self, question: &str, keywords: &[&str], confidence: f64, missing_concepts: &[&str], ) -> usize

Record a knowledge gap.

pub fn unresolved_gaps(&self) -> Vec<&KnowledgeGap>

Get unresolved knowledge gaps.

pub fn resolve_gap(&mut self, index: usize) -> bool

Resolve a knowledge gap by index.

pub fn statistics(&self) -> KgStats

Get store statistics.

pub fn len(&self) -> usize

Total triple count.

pub fn is_empty(&self) -> bool

Whether empty.

pub fn inner(&self) -> &ArrowGraphStore

Get reference to underlying ArrowGraphStore.

pub fn inner_mut(&mut self) -> &mut ArrowGraphStore

Get mutable reference to underlying ArrowGraphStore.

Trait Implementations

impl Default for KgStore

fn default() -> Self

Returns the “default value” for a type.