Examples with ExprVar org.apache.jena.sparql.expr.ExprVar used on opensource projects

Example 46 with ExprVar

use of org.apache.jena.sparql.expr.ExprVar in project jena by apache.

the class TestUserDefinedFunctionFactory method test_user_defined_function_factory_add_02.

@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());
}

Example 47 with ExprVar

use of org.apache.jena.sparql.expr.ExprVar in project jena by apache.

the class TestUserFunctionsInSparql method setup.

@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()));
}

Example 48 with ExprVar

use of org.apache.jena.sparql.expr.ExprVar in project jena by apache.

the class TestOptimizer method combine_extend_02.

@Test
public void combine_extend_02() {
    Op extend = OpExtend.create(OpTable.unit(), new VarExprList(Var.alloc("x"), new NodeValueInteger(1)));
    extend = OpExtend.create(extend, new VarExprList(Var.alloc("y"), new ExprVar("x")));
    String opExpectedString = StrUtils.strjoinNL("(extend ((?x 1) (?y ?x))", "  (table unit))");
    check(extend, new TransformExtendCombine(), opExpectedString);
}

Example 49 with ExprVar

use of org.apache.jena.sparql.expr.ExprVar in project jena by apache.

the class TestOptimizer method combine_assign_02.

@Test
public void combine_assign_02() {
    Op assign = OpAssign.create(OpTable.unit(), new VarExprList(Var.alloc("x"), new NodeValueInteger(1)));
    assign = OpAssign.create(assign, new VarExprList(Var.alloc("y"), new ExprVar("x")));
    String opExpectedString = StrUtils.strjoinNL("(assign ((?x 1) (?y ?x))", "  (table unit))");
    check(assign, new TransformExtendCombine(), opExpectedString);
}

Example 50 with ExprVar

use of org.apache.jena.sparql.expr.ExprVar in project webofneeds by researchstudio-sat.

the class SparqlSelectFunction method addOrderBy.

/**
 * Use Query.ORDER_* for the direction value.
 *
 * @param varName
 * @param direction
 */
public SparqlSelectFunction<T> addOrderBy(String varName, int direction) {
    varName = Var.canonical(varName);
    SortCondition sc = new SortCondition(new ExprVar(varName), direction);
    addOrderBy(sc);
    return this;
}