Package com.hp.hpl.jena.sparql.expr

Examples of com.hp.hpl.jena.sparql.expr.ExprVar

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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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    }
   
    @Test public void combine_extend_02()
    {
        Op extend = OpExtend.extendDirect(OpTable.unit(), new VarExprList(Var.alloc("x"), new NodeValueInteger(1)));
        extend = OpExtend.extendDirect(extend, new VarExprList(Var.alloc("y"), new ExprVar("x")));
       
        String opExpectedString = StrUtils.strjoinNL(
                                            "(extend ((?x 1) (?y ?x))",
                                            "  (table unit))");
       
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    }
   
    @Test public void combine_assign_02()
    {
        Op assign = OpAssign.assignDirect(OpTable.unit(), new VarExprList(Var.alloc("x"), new NodeValueInteger(1)));
        assign = OpAssign.assignDirect(assign, new VarExprList(Var.alloc("y"), new ExprVar("x")));
       
        String opExpectedString = StrUtils.strjoinNL(
                                            "(assign ((?x 1) (?y ?x))",
                                            "  (table unit))");
       
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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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    @BeforeClass
    public static void setup() {
        UserDefinedFunctionFactory.getFactory().clear();
       
        //Define a square function
        Expr square = new E_Multiply(new ExprVar("x"), new ExprVar("x"));
        UserDefinedFunctionFactory.getFactory().add("http://example/square", square, new ArrayList<Var>(square.getVarsMentioned()));
    }
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        UserDefinedFunctionFactory.getFactory().setPreserveDependencies(false);
    }

    @Test
    public void test_function_expansion_01() {
        Expr e = new ExprVar("x");
        UserDefinedFunctionFactory.getFactory().add("http://example/simple", e, new ArrayList<Var>(e.getVarsMentioned()));
       
        UserDefinedFunction f = (UserDefinedFunction) UserDefinedFunctionFactory.getFactory().create("http://example/simple");
        f.build("http://example/simple", new ExprList(new NodeValueBoolean(true)));
       
        Expr actual = f.getActualExpr();
        Assert.assertFalse(e.equals(actual));
        Assert.assertEquals(0, actual.getVarsMentioned().size());
        Assert.assertEquals(new NodeValueBoolean(true), actual);
    }
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        Assert.assertEquals(new NodeValueBoolean(true), actual);
    }
   
    @Test
    public void test_function_expansion_02() {
        Expr e = new E_Multiply(new ExprVar("x"), new ExprVar("x"));
        UserDefinedFunctionFactory.getFactory().add("http://example/square", e, new ArrayList<Var>(e.getVarsMentioned()));
       
        UserDefinedFunction f = (UserDefinedFunction) UserDefinedFunctionFactory.getFactory().create("http://example/square");
        f.build("http://example/square", new ExprList(new NodeValueInteger(3)));
       
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        Assert.assertEquals(new E_Multiply(new NodeValueInteger(3), new NodeValueInteger(3)), actual);
    }
   
    @Test
    public void test_function_expansion_03() {
        Expr e = new E_Multiply(new ExprVar("x"), new ExprVar("y"));
        List<Var> defArgs = new ArrayList<Var>();
        defArgs.add(Var.alloc("x"));
        defArgs.add(Var.alloc("y"));
        UserDefinedFunctionFactory.getFactory().add("http://example/square", e, defArgs);
       
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Related Classes of com.hp.hpl.jena.sparql.expr.ExprVar

  • arq.examples.AlgebraExec
  • arq.examples.ExProg2
  • arq.examples.propertyfunction.labelSearch
  • com.hp.hpl.jena.graph.Node
  • com.hp.hpl.jena.query.Query
  • com.hp.hpl.jena.query.SortCondition
  • com.hp.hpl.jena.sparql.algebra.AlgebraQuad$TransformQuadGraph
  • com.hp.hpl.jena.sparql.algebra.optimize.TestOptimizer
  • com.hp.hpl.jena.sparql.core.Var
  • com.hp.hpl.jena.sparql.engine.iterator.TestQueryIterSort
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