[ Version ( since = "3.3" ) ]
public async InputStream serialize_async (SerializeFlags flags, RdfFormat format, Cancellable? cancellable = null) throws Error
Serializes a `DESCRIBE` or `CONSTRUCT` query into the given RDF format.
The query this was created from must be either a `DESCRIBE` or `CONSTRUCT` query, an error will be raised otherwise.
This is an asynchronous operation, callback will be invoked when the data is available for reading.
The SPARQL endpoint may not support the specified format, in that case an error will be raised.
The flags argument is reserved for future expansions, currently
NONE must be passed.
| this |
a `TrackerSparqlStatement` |
| flags |
serialization flags |
| format |
RDF format of the serialized data |
| cancellable |
Optional [type@Gio.Cancellable] |
| callback |
user-defined [type@Gio.AsyncReadyCallback] to be called when the asynchronous operation is finished. |
| user_data |
user-defined data to be passed to |