On 16/04/2025 17:11, Dave Reynolds wrote:
I should know the answer to this but is there a way to preserve prefixes
when using graph PUT/GET operations on a TDB-backed fuseki instance?
The set up is a vanilla TDB-backed fuseki with default union set.
unionDefaultGraph does not affect Graph Store Protocol PUT/GET.
It only affects SPARQL pattern matching.
----
fuseki --loc "DB" --update /ds &
# (also tried unionDefaultGraph)
curl -T D.ttl --header \
'Content-type: text/turtle' \
'http://localhost:3030/ds?default'
curl --header 'Accept: text/turtle' 'http://localhost:3030/ds?default'
gives me prefixes.
You should also be able to PUT/POST a prefixes only file and have them
persist.
If I take a turtle file with prefixes and PUT it to a graph in the
dataset then GET it back prefixes are lost, or at least not used in the
turtle serialization of the response.
What operations are you using to PUT/GET?
I realise, of course, that I can manage prefixes just fine if access via
Java API (or could likely use SPARQL CONSTRUCTS) but in this case I'm
restricted to the Sparql Graph API.
Dave
Andy
Also - the prefixes service:
https://jena.apache.org/documentation/fuseki2/prefixes-service.html
