Quads remove events

[iddan]

Reading through the spec I wonder: is there a way to listen to quads removal in the store? As far as I understand the Source interface is only usable for additions. Am I missing something?

[iddan]

Implementation proposal rdfjs/N3.js#162

[bergos]

If we add it, it should be optional to implement. Some backends may not list the quads which will be deleted on removeMatches (e.g. SPARQL). Also the data event of a stream is a little bit different to a remove event, as data is just the event based way of using .read().

@jacoscaz Maybe also relevant for QuadStore.

[iddan]

True. But generally data is when new quads are added and remove are when they are removed

[elf-pavlik]

@iddan would you like to create PR which adds it to this section: http://rdf.js.org/stream-spec/#optional-events I think this will allow everyone to provide better feedback.

As far as I understand the Source interface is only usable for additions.

Store interface defines method for removals. Source only match() for reads and Sink only import() for additions.

[iddan]

Yes!