Struct R2ROperator 

pub struct R2ROperator { /* private fields */ }

R2R (Relation-to-Relation) Operator Executes SPARQL queries over streaming data combined with static data

Implementations

impl R2ROperator

pub fn new(query: String) -> Self

Create a new R2ROperator with a SPARQL query

pub fn add_static_data(&mut self, quad: Quad)

Add a static quad to the operator’s static data store

pub fn execute( &self, container: &QuadContainer, ) -> Result<QueryResults<'_>, Box<dyn Error>>

Execute the SPARQL query over the container’s quads combined with static data

pub fn execute_select( &self, container: &QuadContainer, ) -> Result<Vec<String>, Box<dyn Error>>

Execute the SPARQL query and return results as a vector of solution mappings This is a convenience method that handles common result types

pub fn query(&self) -> &str

Get a reference to the query string

pub fn static_data_size(&self) -> usize

Get the number of static quads

Trait Implementations

impl Clone for R2ROperator

fn clone(&self) -> R2ROperator

Returns a duplicate of the value.

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

Performs copy-assignment from source.