Struct ContentStore 

pub struct ContentStore { /* private fields */ }

Wraps Oxigraph Store, providing named-graph-aware RDF operations. No other crate should import oxigraph directly.

Implementations

impl ContentStore

pub fn new() -> Result<Self, Box<dyn Error>>

Create a new in-memory content store.

pub fn insert_triple_into( &self, subject: &str, predicate: &str, object: &ObjectValue, graph: &str, ) -> Result<(), Box<dyn Error>>

Insert a triple into the specified named graph.

pub fn query_to_json(&self, sparql: &str) -> Result<Value, Box<dyn Error>>

Execute a SPARQL SELECT or ASK query and return results as JSON.

pub fn load_turtle(&self, path: &Utf8Path) -> Result<(), Box<dyn Error>>

Load a Turtle (.ttl) file into the default graph.

pub fn load_turtle_into( &self, path: &Utf8Path, graph: &str, ) -> Result<(), Box<dyn Error>>

Load a Turtle (.ttl) file into a specific named graph.

pub fn clear(&self) -> Result<(), Box<dyn Error>>

Clear all data from the store.

pub fn export_search_ntriples(&self) -> Result<String, Box<dyn Error>>

Export search-relevant triples as N-Triples for client-side SPARQL search.

Includes only predicates useful for search: name, description, date, URL, keywords, and rdf:type. The output can be loaded into oxigraph’s WASM build in the browser.

pub fn export_turtle(&self) -> Result<String, Box<dyn Error>>

Export all triples (flattened from all named graphs) as NTriples.

This is useful for SHACL validation, which operates on a flat graph.

Trait Implementations

impl Clone for ContentStore

fn clone(&self) -> ContentStore

Returns a duplicate of the value.

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

Performs copy-assignment from source.