Struct PathGraph 

pub struct PathGraph { /* private fields */ }

An in-memory RDF graph for property path evaluation.

Stores triples as subject -> [(predicate, object)] for efficient lookup.

Implementations

impl PathGraph

pub fn new() -> Self

Create a new empty graph.

pub fn add_triple(&mut self, subject: &str, predicate: &str, object: &str)

Add a triple to the graph.

pub fn subjects(&self) -> Vec<String>

Return all distinct subjects in the graph.

pub fn objects_of(&self, subject: &str, predicate: &str) -> Vec<String>

Return all objects reachable from subject via predicate.

pub fn subjects_of(&self, object: &str, predicate: &str) -> Vec<String>

Return all subjects that have predicate pointing to object.

pub fn all_predicates(&self) -> Vec<String>

Return all distinct predicates in the graph.

pub fn objects_via_any_except( &self, subject: &str, excluded: &[String], ) -> Vec<String>

Return all objects reachable from subject via any predicate not in excluded.

Trait Implementations

impl Clone for PathGraph

fn clone(&self) -> PathGraph

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PathGraph

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

Formats the value using the given formatter.

impl Default for PathGraph

fn default() -> PathGraph

Returns the “default value” for a type.