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https://issues.apache.org/jira/browse/JENA-1083?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15052735#comment-15052735
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ASF GitHub Bot commented on JENA-1083:
--------------------------------------

Github user ajs6f commented on a diff in the pull request:

    https://github.com/apache/jena/pull/106#discussion_r47353899
  
    --- Diff: 
jena-arq/src/main/java/org/apache/jena/sparql/core/mem/QuadTableForm.java ---
    @@ -124,31 +96,21 @@ public PMapQuadTable get() {
                        return new PMapQuadTable(name()) {
     
                                @Override
    -                           protected Quad quad(final Node s, final Node p, 
final Node o, final Node g) {
    -                                   return Quad.create(g, s, p, o);
    -                           }
    +                public Quad tuple(final Quad q) {
    +                    return create(q.getSubject(), q.getPredicate(), 
q.getObject(), q.getGraph());
    --- End diff --
    
    To be clear, I will send that next PR in the next few days.


> MInor refactoring in TupleTables
> --------------------------------
>
>                 Key: JENA-1083
>                 URL: https://issues.apache.org/jira/browse/JENA-1083
>             Project: Apache Jena
>          Issue Type: Improvement
>          Components: ARQ
>            Reporter: A. Soroka
>            Priority: Minor
>
> There are some minor refactorings available for TupleTable and its subtypes, 
> particularly PMapTripleTable and PMapQuadTable that will clarify their use. 
> Specifically, current impls of those abstract types have to override several 
> methods for adding, removing, and finding tuples. In fact, the only 
> information being added when those methods are overridden is conversion 
> between canonical and internal tuple ordering. This refactoring is to provide 
> methods that do that conversion and nothing else, which will make two methods 
> the most that any implementation of those abstract classes will have to 
> provide.



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