Struct Update 

pub struct Update { /* private fields */ }

A SPARQL Update operation configured before execution (ADR-009).

Implementations

impl Update

pub fn new(text: impl Into<String>) -> Self

Creates a SPARQL Update from its text.

pub fn as_str(&self) -> &str

Returns the update text.

pub fn base_iri(self, base_iri: impl Into<String>) -> Result<Self>

Sets the base IRI used while parsing the update.

Invalid IRIs return Error::InvalidRdf.

pub fn prefix( self, prefix_name: impl Into<String>, prefix_iri: impl Into<String>, ) -> Result<Self>

Adds a default IRI prefix used while parsing the update.

Invalid IRIs return Error::InvalidRdf.

pub fn default_graph(self, graphs: impl IntoIterator<Item = GraphName>) -> Self

Restricts USING-style dataset default graphs when applicable.

Only SPARQL Update operations that expose USING datasets (for example DELETE/INSERT) honor this. INSERT DATA / DELETE DATA return Error::Unsupported at execute time if dataset configuration is set.

pub fn default_graph_as_union(self) -> Self

Treats the union of named graphs as the default graph for USING datasets.

pub fn cancellation_token(self, token: CancellationToken) -> Self

Attaches a cooperative cancellation token (ADR-012).

pub fn execute(self, model: &Model) -> Result<()>

Parses and executes the update against a model.

Execution holds the model write lock. On Fjall-backed models, the durable copy is resynced after a successful update with compensated inserts/deletes so a mid-sync failure restores the pre-update on-disk key set; memory is then reloaded from that snapshot.

Trait Implementations

impl Clone for Update

fn clone(&self) -> Update

Returns a duplicate of the value.

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

Performs copy-assignment from source.