[GitHub] jena pull request #114: JENA-632: Generate JSON from SPARQL directly

[afs]

Github user afs commented on a diff in the pull request:

    https://github.com/apache/jena/pull/114#discussion_r184644548
  
    --- Diff: 
jena-arq/src/main/java/org/apache/jena/sparql/serializer/QuerySerializer.java 
---
    @@ -142,7 +144,19 @@ public void visitAskResultForm(Query query)
             out.print("ASK") ;
             out.newline() ;
         }
    -    
    +
    +    @Override
    +    public void visitJsonResultForm(Query query) {
    +        out.print("JSON {");
    +        List<String> terms = new ArrayList<>();
    +        for (Map.Entry<String, Object> entry : 
query.getJsonMapping().entrySet()) {
    --- End diff --
    
    For now, Expressions can be done with `BIND` at the end of the `WHERE` 
pattern.
    
    (`sum` is a group-aggregator -- whole different ball game!)


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