On 20/07/13 00:11, Patrick Logan wrote:
Yeah, I think JSON-LD is intended for shipping around smallish
packets of linked data formatted as JSON in a standard
quality-preserving way. I do not get the sense that JSON-LD is
intended for large query results.
If you want large query results as JSON, then the SPARQL JSON format
is already defined and implemented. It can be consumed by the
typical front-end developer, and they can reconstruct parts of the
graph as needed from the tabular format, just as they would do if
they were getting JSON back from any tabular data source, but with
nice name spaced identifiers and standard semantics.
On Fri, Jul 19, 2013 at 4:51 AM, Neubert Joachim <[email protected]>
wrote:
For some use cases, the tabular SPARQL select query output formats
are not optimal. That's true when the results are in fact
tree-shaped, such as multiple skos concepts with their relations
and their respective labels. Therefore, it would be highly useful
if I could offer the output of a SPARQL construct query in a format
which a web developer without any knowledge of RDF can immediately
cope with.
From Andy's mail on this list
(http://mail-archives.apache.org/mod_mbox/jena-users/201306.mbox/%[email protected]%3E)
I understand that there are issues re. the scalability of json-ld
and its suitability for updates. However, I imagine that for a
large number of use cases these issues would not matter, and an
integration of jena-jsonld into Fuseki (perhaps with a warning hint
in the documentation) could be tremendously helpful for people
using Fuseki just out of the box.
What do you think?
Cheers, Joachim
Joachim brings up an issue that I've seen several times now - not
everything is table shaped - and CONSTRUCT is one way to address that.
The only things missing are adding in the JSON_LD module and updating
Fuseki's content negotiation.
What would be good is for some feedback on the jena-jsonld module. One
thing missing is the ability to turn the prefixes of a model into a
@vocab. Then lesser things are exposing more controls for the
production of the JSON (I think jsonld-java has some flags to control
the output).
https://github.com/afs/jena-jsonld
Feedback please!
Andy
