Package com.hp.hpl.jena.query

Examples of com.hp.hpl.jena.query.SortCondition

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        for(int i = 0; i < N; i++){
            unsorted.add(BindingFactory.binding(var, NodeFactory.intToNode(random.nextInt())));
        }
       
        List<SortCondition> conditions = new ArrayList<SortCondition>();
        conditions.add(new SortCondition(new ExprVar("x"), Query.ORDER_ASCENDING));
        comparator = new BindingComparator(conditions);
       
        db = new MultiThreadedSortedDataBag<Binding>( new ThresholdPolicyCount<Binding>(THRESHOLD), SerializationFactoryFinder.bindingSerializationFactory(), comparator);
        MultiThreadedSortedDataBag.MAX_SPILL_FILES = MAX_SPILL_FILES ;
    }
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        for(int i = 0; i < 500; i++){
            unsorted.add(randomBinding(vars));
        }
       
        List<SortCondition> conditions = new ArrayList<SortCondition>();
        conditions.add(new SortCondition(new ExprVar("8"), Query.ORDER_ASCENDING));
        comparator = new BindingComparator(conditions);
       
        iterator = new CallbackIterator(unsorted.iterator(), 25, null);
        iterator.setCallback(new Callback() {
            @Override
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    private void testSorting(int numBindings, int threshold)
    {
        List<Binding> unsorted = randomBindings(numBindings);
       
        List<SortCondition> conditions = new ArrayList<SortCondition>();
        conditions.add(new SortCondition(new ExprVar("8"), Query.ORDER_ASCENDING));
        conditions.add(new SortCondition(new ExprVar("1"), Query.ORDER_ASCENDING));
        conditions.add(new SortCondition(new ExprVar("0"), Query.ORDER_DESCENDING));
        BindingComparator comparator = new BindingComparator(conditions);

        List<Binding> sorted = new ArrayList<Binding>();
       
        SortedDataBag<Binding> db = new SortedDataBag<Binding>(
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    @Test public void testTemporaryFilesAreCleanedUpAfterCompletion()
    {
        List<Binding> unsorted = randomBindings(500);
       
        List<SortCondition> conditions = new ArrayList<SortCondition>();
        conditions.add(new SortCondition(new ExprVar("8"), Query.ORDER_ASCENDING));
        BindingComparator comparator = new BindingComparator(conditions);
       
        SortedDataBag<Binding> db = new SortedDataBag<Binding>(
                new ThresholdPolicyCount<Binding>(10),
                SerializationFactoryFinder.bindingSerializationFactory(),
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        {
            Expr expr = sc.getExpression() ;
            Expr expr2 = transform(nodeTransform, expr) ;
            if ( expr != expr2 )
                same = false ;
            SortCondition sc2 = new SortCondition(expr2, sc.getDirection()) ;
            conditions2.add(sc2) ;
        }

        if ( same )
            return conditions ;
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        @Override
        public void visit(OpOrder opOrder)
        {
            for ( Iterator<SortCondition> iter = opOrder.getConditions().iterator() ; iter.hasNext(); )
            {
                SortCondition sc = iter.next();
                Set<Var> x = sc.getExpression().getVarsMentioned() ;
                acc.addAll(x) ;
            }
        }
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        for(int i = 0; i < 500; i++){
            unsorted.add(randomBinding(vars));
        }
       
        List<SortCondition> conditions = new ArrayList<SortCondition>();
        conditions.add(new SortCondition(new ExprVar("8"), Query.ORDER_ASCENDING));
        comparator = new BindingComparator(conditions);
       
        iterator = new CallbackIterator(unsorted.iterator(), 25, null);
        iterator.setCallback(new Callback() {
            @Override
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            // Aggregates in ORDER BY
            for ( SortCondition sc : query.getOrderBy() )
            {
                Expr e = sc.getExpression() ;
                e = ExprLib.replaceAggregateByVariable(e) ;
                scList.add(new SortCondition(e, sc.getDirection())) ;
               
            }
            op = new OpOrder(op, scList) ;
        }
       
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            for ( SortCondition sc : conditions )
            {
                Expr e = sc.getExpression() ;
                Expr e2 = transform(e, exprTransform) ;
                conditions2.add(new SortCondition(e2, sc.getDirection())) ;
                if ( e != e2 )
                    changed = true ;
            }
            OpOrder x = opOrder ;
            if ( changed )
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            // Aggregates in ORDER BY
            for ( SortCondition sc : query.getOrderBy() )
            {
                Expr e = sc.getExpression() ;
                e = ExprLib.replaceAggregateByVariable(e) ;
                scList.add(new SortCondition(e, sc.getDirection())) ;
               
            }
            op = new OpOrder(op, scList) ;
        }
       
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Related Classes of com.hp.hpl.jena.query.SortCondition

  • com.hp.hpl.jena.sparql.algebra.AlgebraGenerator
  • com.hp.hpl.jena.sparql.algebra.AlgebraGenerator_LC3
  • com.hp.hpl.jena.sparql.algebra.OpVars$OpVarsMentioned
  • com.hp.hpl.jena.sparql.algebra.OpVars$OpVarsQuery
  • com.hp.hpl.jena.sparql.algebra.Transformer$ApplyTransformVisitor
  • com.hp.hpl.jena.sparql.engine.binding.BindingComparator
  • com.hp.hpl.jena.sparql.engine.iterator.TestQueryIterSort
  • com.hp.hpl.jena.sparql.expr.ExprVar
  • com.hp.hpl.jena.sparql.graph.NodeTransformLib
  • com.hp.hpl.jena.sparql.serializer.FmtExpr
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