jena-geosparql changes for Jena6

[afs]

Jena 6 is an opportunity to make changes that are not incremental and may require users to reload data.

What changes should be made for jena 6.0.0?

For example, SpatialIndexV1 is marked @Deprecated(forRemoval=true). Removing that ripples through the system into GeoAssembler.

[afs]

Kryo 4 -> 5 :: #3425
Reload required.

[afs]

SpatialIndexV1 is marked @Deprecated(forRemoval=true)

@Aklakan --

Is it too early to remove this in Jena 6?

[Aklakan]

From my side it can be removed - there might be a bit of a rat tail though.
What's the rough date for when to freeze for jena 6?

[afs]

roughly ...
Jena 5.6.0 was mid-October so Jena 6.0.0 is later than mid-January.

I'd like there to a quiet time (no changes that motivate the major version number change) because impactful changes right up to the deadline have a habit of causing unexpected changes. A couple of weeks minimum.

At the moment, I've done all the major changes I had listed as "must do" except adding the SPDX identifier. There maybe "clear-up" PRs if I stumble cross something that could do with some maintenance (see recent reformatting).

I'm wondering whether have the extra directory level of jena-extras is worth it. It is 3 modules and all 3 are long-time modules so not really "extra".

Another area is whether ARP (old RDF/XML parser) ought to move to test.

jena-core then only has N-Triples reader (which is out of date). But updating ARP for RDF 1.2 is significant work (it is a SAX based parser) for little benefit. Using jena-core on its own is not a good idea so the idea of "N-Triples" has a logic to it. jena-core also has an the RDF/XML writers).

As I write this comment, it feels like a good thing to move ARP. At worse, it can go back, but delaying is a delay of at least 2 years.

If there is a need for better I/O in jena-core, putting in a Turtle parser and basic writer (which can serve for N-Triples) seems bette long term but unlikely to be ready for 6.0.0.

RDF & SPARQL WG is very time consuming at the moment.