FWIW, 1.1 works better for my use cases which are currently all Linked Art 
centric.

https://linked.art

Dave Beaudet



On Apr 23, 2022 13:16, Andy Seaborne <a...@apache.org> wrote:
What should the default settings be JSON-LD 1.0 or 1.1?

It is not a simple choice.

There is slightly pretty writing of JSON-LD 1.1 now - prefixes and
native types.

A new issue is
e.g. 
https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fapache%2Fjena%2Fissues%2F1254&amp;data=05%7C01%7C%7Ce588fae0f1d04750bb1a08da254cf794%7C53f6461e95ad4b08a8da973e49ae9312%7C0%7C0%7C637863309768468706%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&amp;sdata=z%2F8C6g5neNKttkS6e2ssOpUjH2dlMSLbU8Nwe0Lh314%3D&amp;reserved=0

JSON-LD 1.1 is not completely backwards compatible with JSON-LD 1.0.

Current status:

There are two JSON-LD subsystems with their own language and format
constants as well as terms for the system "JSON-LD" settings.  API code
can choose which it wishes to use. All the previous features of JSON-LD
1.0 writing are available this way.

The decision is what are the defaults for application/ld+json.

This affects Fuseki users where where isn't scope to have a switch
between 1.0 and 1.1.

In issues/1254, the reading client software isn't Jena so the
conservative choice of writing 1.0 while reading 1.1 does not really
work out.

The decision for Jena is when to switch.

JSON-LD 1.1 is becoming the norm.

It isn't practical to remain at JSON-LD 1.0 indefinitely.

I think we're at the point where we ought to switch reading and writing
to JSON-LD 1.1 unless we have examples/evidence where this is a problem.

     Andy


>> On Fri, Mar 11, 2022 at 11:39 AM Andy Seaborne <a...@apache.org> wrote:
>>>
>>> Jena has both JSON 1.0, provided by jsonld-java, and JSON-LD 1.1,
>>> provided by Titanium.
>>>
>>> What should the default settings be?
>>>
>>> For parsing that means what is bound to "application/ld+json" and file
>>> extension .jsonld.
>>>
>>> For writing, it means what is setup for Lang.JSONLD.
>>>
>>> This is two decisions - parsing and writing can be different.
>>>
>>>
>>> But.
>>>
>>> It is not so simple:
>>>
>>> 1/ For Java11, the default settings for java.net.http can't contact
>>> schema.org.

This seems to only affect on a few (maybe one) Java 11 build version.
The latest Java11 available on Ubuntu works.

>>> 2/ Jena is writing JSON-LD 1.1 without much in the way of transformation
>>> nor creating a @context from the RDF data. It prints full URIs; numbers
>>> aren't abbreviated etc etc. so it not very pretty.

There is slightly pretty writing of JSON-LD 1.1 now - prefixes and
native types.

So there is "plain", no prefixes, no native types (and hence completely
faithly RDF), and "pretty" (JSON numbers).


Add issue 3:

JSON-LD 1.1 is not completely backwards compatible with JSON-LD 1.0.

e.g. 
https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fapache%2Fjena%2Fissues%2F1254&amp;data=05%7C01%7C%7Ce588fae0f1d04750bb1a08da254cf794%7C53f6461e95ad4b08a8da973e49ae9312%7C0%7C0%7C637863309768468706%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&amp;sdata=z%2F8C6g5neNKttkS6e2ssOpUjH2dlMSLbU8Nwe0Lh314%3D&amp;reserved=0

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