aConn.begin(); aConn.add().io() .context( SimpleValueFactory.getInstance().createIRI("urn:targetGraph")) .format(RDFFormat.TRIG) .stream(request.getInputStream()); aConn.commit();
{<urn:default> <urn:default> <urn:default> .}GRAPH <urn:graph> {<urn:graph> <urn:graph> <urn:graph> .}
# Query 1
SELECT * { ?s ?p ?o }
# - results
{ "head": { "vars": [ "s" , "p" , "o" ] } , "results": { "bindings": [ { "s": { "type": "uri" , "value": "urn:default" } , "p": { "type": "uri" , "value": "urn:default" } , "o": { "type": "uri" , "value": "urn:default" } } , { "s": { "type": "uri" , "value": "urn:graph" } , "p": { "type": "uri" , "value": "urn:graph" } , "o": { "type": "uri" , "value": "urn:graph" } } ] }}
###
# Query 2
SELECT * { GRAPH ?g {?s ?p ?o} }
# - results
{ "head": { "vars": [ "s" , "p" , "o" , "g" ] } , "results": { "bindings": [ { "s": { "type": "uri" , "value": "urn:graph" } , "p": { "type": "uri" , "value": "urn:graph" } , "o": { "type": "uri" , "value": "urn:graph" } , "g": { "type": "uri" , "value": "urn:graph" } } ] }}
###
# Query 3
SELECT DISTINCT ?g { graph ?g { ?s ?p ?o }}
# - results
{ "head": { "vars": [ "g" ] } , "results": { "bindings": [ { "g": { "type": "uri" , "value": "urn:graph" } } ] }}
GRAPH <urn:targetGraph> {<urn:default> <urn:default> <urn:default> .}GRAPH <urn:graph> {<urn:graph> <urn:graph> <urn:graph> .}
--
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