neo4j - How to execute a SPARQL update in SailGraph by Tinkerpop -

my question how execute sparql update using sailgraph created tinkerpop.

delete { ?i_id_iri rdfs:label "bii-i-1" } insert { ?i_id_iri rdfs:label "bii-i-4" }   {      ?investigation rdf:type obi:0000011.     ?i_id_iri rdf:type iao:0000577.     ?i_id_iri iao:0000219 ?investigation.   }  

i have query far prefixes added on top file not work. code run follows

query = parser.parseupdate(querystring, baseuri); updateexpr expr = query.getupdateexprs().get(0); dataset dataset = query.getdatasetmapping().get(expr); graphdatabase.getsailconnection().executeupdate(expr, dataset, new emptybindingset(), false); 

i'm not particularly familiar tinkerpop graphsail, assuming implements sesame sail api correctly, executing sparql query far easier if wrap in sailrepository, so:

 tinkergraph graph = new tinkergraph();  sail sail = new graphsail(graph);       repository rep = new sailrepository(sail);  rep.initialize(); 

you can use sesame's repository api, far more user-friendly trying operations directly on sail (which not designed purpose).

to open connection , execute sparql update, example, do:

repositoryconnection conn = rep.getconnection(); try {       string sparql = "insert {?s <foo:example> . } {?s ?p ?o } ";        update update = conn.prepareupdate(querylanguage.sparql, sparql);       update.execute(); } {   conn.close(); } 

see link above more details on sesame's repository api, or check out javadoc.