grafter.rdf.protocols
Grafter protocols and types for RDF processing
->Triple
(->Triple s p o)Positional factory function for class grafter.rdf.protocols.Triple.
ISPARQLable
protocol
NOTE this protocol is intended for low-level access. End users should use query instead.
Run an arbitrary SPARQL query. Works with ASK, DESCRIBE, CONSTRUCT and SELECT queries.
You can call this on a Repository however if you do you may in some cases cause a resource leak, for example if the sequence of results isn’t fully consumed.
To use this without leaking resources it is recommended that you call ->connection on your repository, inside a with-open; and then consume all your results inside of a nested doseq/dorun/etc…
e.g.
(with-open [conn (->connection repo)]
(doseq [res (query conn "SELECT * WHERE { ?s ?p ?o .}")]
(println res)))
members
query-dataset
(query-dataset this sparql-string model)IStatement
protocol
An RDF triple or quad
members
context
(context statement)object
(object statement)predicate
(predicate statement)subject
(subject statement)ITransactable
protocol
Low level protocol for transactions support. Most users probably want to use grafter.rdf.sesame/with-transaction
members
begin
(begin repo)Start a transaction
commit
(commit repo)Commit a transaction
rollback
(rollback repo)Rollback a transaction
ITripleReadable
protocol
Use the higher level wrapper function statements if you just wish to read in some RDF.
This protocol exists for implementers to hook in additional sources of statements.
Takes a source of statements or triples and converts it into a seq of triples.
A hash of options is passed to each implementation, they may be ignored or handled depending on the circumstance.
members
to-statements
(to-statements this options)ITripleWriteable
protocol
This protocol is implemented by anything which you can put statements into.
members
add
(add this triples)(add this graph triples)(add this graph format triple-stream)(add this graph base-uri format triple-stream)Add a seq of triples or quads to a destination. Works with a sequence of IStatements an InputStream, File or Reader
add-statement
(add-statement this statement)(add-statement this graph statement)map->Quad
(map->Quad m__5869__auto__)Factory function for class grafter.rdf.protocols.Quad, taking a map of keywords to field values.
map->Triple
(map->Triple m__5869__auto__)Factory function for class grafter.rdf.protocols.Triple, taking a map of keywords to field values.