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

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

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        Assert.assertEquals(1, base.getVarsMentioned().size());
    }
   
    @Test
    public void test_function_expansion_05() {
        Expr square = new E_Multiply(new ExprVar("x"), new ExprVar("x"));
        UserDefinedFunctionFactory.getFactory().add("http://example/square", square, new ArrayList<Var>(square.getVarsMentioned()));
       
        //Test that with preserveDependencies set to false (the default) that the definition of cube is actually
        //expanded to include the definition of square
        Expr cube = new E_Multiply(new E_Function("http://example/square", new ExprList(new ExprVar("y"))), new ExprVar("y"));
        UserDefinedFunctionFactory.getFactory().add("http://example/cube", cube, new ArrayList<Var>(cube.getVarsMentioned()));
       
        UserDefinedFunctionDefinition def = UserDefinedFunctionFactory.getFactory().get("http://example/cube");
        Expr base = def.getBaseExpr();
        Assert.assertTrue(base instanceof E_Multiply);
        E_Multiply m = (E_Multiply)base;
        Assert.assertTrue(m.getArg1() instanceof E_Multiply);
        Assert.assertTrue(m.getArg2() instanceof ExprVar);
        Assert.assertEquals(1, base.getVarsMentioned().size());
    }
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        Assert.assertNotNull(factory);
    }
   
    @Test
    public void test_user_defined_function_factory_add_01() {
        Expr e = new E_Multiply(new ExprVar("x"), new ExprVar("x"));
        UserDefinedFunctionFactory.getFactory().add("http://example/square", e, new ArrayList<>(e.getVarsMentioned()));
        Assert.assertTrue(UserDefinedFunctionFactory.getFactory().isRegistered("http://example/square"));
        Assert.assertEquals(e, UserDefinedFunctionFactory.getFactory().get("http://example/square").getBaseExpr());
    }
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        Assert.assertEquals(e, UserDefinedFunctionFactory.getFactory().get("http://example/square").getBaseExpr());
    }
   
    @Test
    public void test_user_defined_function_factory_add_02() {
        Expr e1 = new E_Multiply(new ExprVar("x"), new ExprVar("x"));
        Expr e2 = new E_Multiply(new ExprVar("y"), new ExprVar("y"));
       
        UserDefinedFunctionFactory.getFactory().add("http://example/square", e1, new ArrayList<>(e1.getVarsMentioned()));
        Assert.assertTrue(UserDefinedFunctionFactory.getFactory().isRegistered("http://example/square"));
        Assert.assertEquals(e1, UserDefinedFunctionFactory.getFactory().get("http://example/square").getBaseExpr());
       
        UserDefinedFunctionFactory.getFactory().add("http://example/square", e2, new ArrayList<>(e2.getVarsMentioned()));
        Assert.assertTrue(UserDefinedFunctionFactory.getFactory().isRegistered("http://example/square"));
        Assert.assertEquals(e2, UserDefinedFunctionFactory.getFactory().get("http://example/square").getBaseExpr());
    }
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        Assert.assertEquals(e2, UserDefinedFunctionFactory.getFactory().get("http://example/square").getBaseExpr());
    }
   
    @Test
    public void test_user_defined_function_factory_add_03() throws ParseException {
        Expr e = new E_Multiply(new ExprVar("x"), new ExprVar("x"));
       
        //Instead of registering the pre-built expression register using a string for the expression
        UserDefinedFunctionFactory.getFactory().add("http://example/square", "?x * ?x", new ArrayList<>(e.getVarsMentioned()));
       
        Assert.assertTrue(UserDefinedFunctionFactory.getFactory().isRegistered("http://example/square"));
        Assert.assertEquals(e, UserDefinedFunctionFactory.getFactory().get("http://example/square").getBaseExpr());
    }
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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<>(e.getVarsMentioned()));
       
        UserDefinedFunction f = (UserDefinedFunction) UserDefinedFunctionFactory.getFactory().create("http://example/square");
        f.build("http://example/square", new ExprList(new NodeValueInteger(3)));
       
        Expr actual = f.getActualExpr();
        Assert.assertFalse(e.equals(actual));
        Assert.assertEquals(0, actual.getVarsMentioned().size());
        Assert.assertEquals(new E_Multiply(new NodeValueInteger(3), new NodeValueInteger(3)), actual);
    }
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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<>();
        defArgs.add(Var.alloc("x"));
        defArgs.add(Var.alloc("y"));
        UserDefinedFunctionFactory.getFactory().add("http://example/square", e, defArgs);
       
        UserDefinedFunction f = (UserDefinedFunction) UserDefinedFunctionFactory.getFactory().create("http://example/square");
        ExprList args = new ExprList();
        args.add(new NodeValueInteger(3));
        args.add(new NodeValueInteger(4));
        f.build("http://example/square", args);
       
        Expr actual = f.getActualExpr();
        Assert.assertFalse(e.equals(actual));
        Assert.assertEquals(0, actual.getVarsMentioned().size());
        Assert.assertEquals(new E_Multiply(new NodeValueInteger(3), new NodeValueInteger(4)), actual);
    }
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        Assert.assertEquals(new E_Multiply(new NodeValueInteger(3), new NodeValueInteger(4)), actual);
    }
   
    @Test
    public void test_function_expansion_04() {
        Expr square = new E_Multiply(new ExprVar("x"), new ExprVar("x"));
        UserDefinedFunctionFactory.getFactory().add("http://example/square", square, new ArrayList<>(square.getVarsMentioned()));
       
        //Test that with preserveDependencies set to false (the default) that the definition of cube is actually
        //expanded to include the definition of square
        Expr cube = new E_Multiply(new E_Function("http://example/square", new ExprList(new ExprVar("x"))), new ExprVar("x"));
        UserDefinedFunctionFactory.getFactory().add("http://example/cube", cube, new ArrayList<>(cube.getVarsMentioned()));
       
        UserDefinedFunctionDefinition def = UserDefinedFunctionFactory.getFactory().get("http://example/cube");
        Expr base = def.getBaseExpr();
        Assert.assertTrue(base instanceof E_Multiply);
        E_Multiply m = (E_Multiply)base;
        Assert.assertTrue(m.getArg1() instanceof E_Multiply);
        Assert.assertTrue(m.getArg2() instanceof ExprVar);
        Assert.assertEquals(1, base.getVarsMentioned().size());
    }
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        Assert.assertEquals(1, base.getVarsMentioned().size());
    }
   
    @Test
    public void test_function_expansion_05() {
        Expr square = new E_Multiply(new ExprVar("x"), new ExprVar("x"));
        UserDefinedFunctionFactory.getFactory().add("http://example/square", square, new ArrayList<>(square.getVarsMentioned()));
       
        //Test that with preserveDependencies set to false (the default) that the definition of cube is actually
        //expanded to include the definition of square
        Expr cube = new E_Multiply(new E_Function("http://example/square", new ExprList(new ExprVar("y"))), new ExprVar("y"));
        UserDefinedFunctionFactory.getFactory().add("http://example/cube", cube, new ArrayList<>(cube.getVarsMentioned()));
       
        UserDefinedFunctionDefinition def = UserDefinedFunctionFactory.getFactory().get("http://example/cube");
        Expr base = def.getBaseExpr();
        Assert.assertTrue(base instanceof E_Multiply);
        E_Multiply m = (E_Multiply)base;
        Assert.assertTrue(m.getArg1() instanceof E_Multiply);
        Assert.assertTrue(m.getArg2() instanceof ExprVar);
        Assert.assertEquals(1, base.getVarsMentioned().size());
    }
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        Assert.assertEquals(subtract.getArg2().getVarName(), "a");
    }
   
    @Test
    public void test_function_expansion_13() {
        Expr square = new E_Multiply(new ExprVar("x"), new ExprVar("x"));
        UserDefinedFunctionFactory.getFactory().add("http://example/square", square, new ArrayList<>(square.getVarsMentioned()));
       
        //This test illustrates that if we change the definition of square and call our function again we always
        //get the same result with dependencies not preserved because even though the definition of the dependent function
        //can change the definition of our function is fully expanded when first defined
        Expr cube = new E_Multiply(new E_Function("http://example/square", new ExprList(new ExprVar("x"))), new ExprVar("x"));
        UserDefinedFunctionFactory.getFactory().add("http://example/cube", cube, new ArrayList<>(cube.getVarsMentioned()));
       
        UserDefinedFunction f = (UserDefinedFunction) UserDefinedFunctionFactory.getFactory().create("http://example/cube");
        f.build("http://example/cube", new ExprList(new NodeValueInteger(2)));
       
        Expr actual = f.getActualExpr();
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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<>(square.getVarsMentioned()));
    }
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Related Classes of com.hp.hpl.jena.sparql.expr.E_Multiply

  • com.hp.hpl.jena.sparql.function.user.TestFunctionExpansion
  • com.hp.hpl.jena.sparql.function.user.TestFunctionNonExpansion
  • com.hp.hpl.jena.sparql.function.user.TestUserDefinedFunctionFactory
  • com.hp.hpl.jena.sparql.function.user.TestUserFunctionsInSparql
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