Struct PostgresTripleWriter 

pub struct PostgresTripleWriter { /* private fields */ }

Transactional TripleWriter for SPARQL Update.

apply_update runs the whole batch in one Postgres transaction: each Change deletes, registers any named graph its inserts target (the graph row owns its triples via FK), then inserts; each Clear drops a graph’s contents. Either the whole update commits or none of it does.

Implementations

impl PostgresTripleWriter

pub fn new( triples: Arc<TripleRepository>, accel: AccelRepository, pool: PgPool, ) -> Self

Trait Implementations

impl Clone for PostgresTripleWriter

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl TripleWriter for PostgresTripleWriter

fn apply_update<'life0, 'async_trait>( &'life0 self, changes: Vec<TripleChange>, ) -> Pin<Box<dyn Future<Output = Result<UpdateOutcome, DomainError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Apply every change in one atomic unit, registering any named graph an insert targets before writing it. Returns the inserted/deleted tally.