On 22/03/2021 14:49, Dave Iberson-Hurst wrote:
Andy
Looking for some info on datasets and graphs in fuseki. In particular what
number can be created, how many should be created, what is sensible, any
limitations, upper limits, best practice etc.
As many as you want, there is no hard limit. Triples are 3 RDF terms,
quads are 4 RDF terms.
I am thinking of using datasets and/or graphs to separate data with a view to
controlling users access (read/write/none). Any info would be welcome. I have
done some searching but not finding much info.
Indeed, and Fuseki uses that approach itself for access control to
general datasets by using, in effect, FROM/FROM NAMED internally.
https://jena.apache.org/documentation/fuseki2/fuseki-data-access-control.html
and then have a default graph being a union of visable named graphs.
TDB1, TDB2 do it by filtering at the quad level.
Jena also has
https://jena.apache.org/documentation/permissions/index.html
which is more a system to help build more complex permission-sensitive
applications.
Andy
Dave Iberson-Hurst
LinkedIn: https://www.linkedin.com/in/daveibersonhurst/
