Struct FederatedQueryResult 

pub struct FederatedQueryResult {
    pub service_endpoint: String,
    pub query: String,
    pub results: Vec<BindingRow>,
    pub variables: Vec<String>,
    pub lexicon: LiteralTable,
    pub success: bool,
    pub error: Option<String>,
    pub remote_query_url: Option<String>,
}

The outcome of executing a single query against a single federated service.

Fields

service_endpoint: String

The endpoint URL the query was dispatched to.

query: String

The SPARQL query string that was executed.

results: Vec<BindingRow>

Result bindings — real rows for both local execution and successful remote (HTTP) execution. Each slot holds a term hash resolvable via Self::lexicon (remote) or the local graph lexicon (local).

variables: Vec<String>

Result variable names in slot order (populated for remote SPARQL-results responses; empty for a bare local execution that carries its own ctx).

lexicon: LiteralTable

Hash → text (+ lang/datatype) for the terms in results, so remote string terms are resolvable in the local u64-term model. Empty for local execution (whose terms resolve via the local graph lexicon).

success: bool

Whether execution succeeded.

error: Option<String>

Error message when success is false.

remote_query_url: Option<String>

For remote endpoints, the fully-constructed query URL that was fetched (kept for provenance/debugging). None for local execution.

Implementations

impl FederatedQueryResult

pub fn row_count(&self) -> usize

Number of result rows.

Trait Implementations

impl Clone for FederatedQueryResult

fn clone(&self) -> FederatedQueryResult

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FederatedQueryResult

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

Formats the value using the given formatter.