Method

TsparqlSparqlStatementexecute_async

Declaration [src]

void
tracker_sparql_statement_execute_async (
  TrackerSparqlStatement* stmt,
  GCancellable* cancellable,
  GAsyncReadyCallback callback,
  gpointer user_data
)

Description [src]

Executes asynchronously the SELECT or ASK SPARQL query with the currently bound values.

This function also works for DESCRIBE and CONSTRUCT queries that retrieve data from the triple store. These query forms that return RDF data are however more useful together with tracker_sparql_statement_serialize_async().

This function should only be called on TrackerSparqlStatement objects obtained through tracker_sparql_connection_query_statement() or SELECT/CONSTRUCT/DESCRIBE statements loaded through tracker_sparql_connection_load_statement_from_gresource(). An error will be raised if this method is called on a INSERT or DELETE SPARQL query.

This method completes asynchronously. Use tracker_sparql_statement_execute_finish() inside the GAsyncReadyCallback to obtain the result of the operation.

Parameters

cancellable

Type: GCancellable

Optional GCancellable.

The argument can be NULL.

The data is owned by the caller of the method.

callback

Type: GAsyncReadyCallback

User-defined GAsyncReadyCallback to be called when the asynchronous operation is finished.

The argument can be NULL.

user_data

Type: gpointer

User-defined data to be passed to callback.

The argument can be NULL.

The data is owned by the caller of the method.