Trait Extension 

pub trait Extension: Send + Sync {
    // Required methods
    fn name(&self) -> &str;
    fn procedures(&self) -> Vec<ProcedureSignature>;
    fn execute(
        &self,
        procedure: &str,
        args: &[String],
        adjacency: &HashMap<i64, Vec<(i64, f64)>>,
    ) -> Result<Vec<Vec<TypedValue>>, String>;

    // Provided method
    fn needs_graph(&self) -> bool { ... }
}

Trait that every extension must implement.

Required Methods

fn name(&self) -> &str

Extension name (e.g., “algo”).

fn procedures(&self) -> Vec<ProcedureSignature>

List all procedures this extension provides.

fn execute( &self, procedure: &str, args: &[String], adjacency: &HashMap<i64, Vec<(i64, f64)>>, ) -> Result<Vec<Vec<TypedValue>>, String>

Execute a named procedure with string arguments. Returns rows of typed values, column-ordered per the procedure signature.

Provided Methods

fn needs_graph(&self) -> bool

Whether this extension needs the graph adjacency map. Defaults to false. Override to true for graph algorithm extensions.

Implementations on Foreign Types

impl Extension for RdfExtension

fn name(&self) -> &str

fn procedures(&self) -> Vec<ProcedureSignature>

fn execute( &self, procedure: &str, args: &[String], _adjacency: &HashMap<i64, Vec<(i64, f64)>>, ) -> Result<Vec<Vec<TypedValue>>, String>

Implementors