Examples with Op org.apache.jena.sparql.algebra.Op used on opensource projects

Example 61 with Op

use of org.apache.jena.sparql.algebra.Op in project jena by apache.

the class AbstractTestTransform method check.

private static void check(Op opToOptimize, String opExpectedString) {
    Op opOptimize = Algebra.optimize(opToOptimize);
    Op opExpected = SSE.parseOp(opExpectedString);
    if (false) {
        // Hook for more detail during development. 
        boolean b = Objects.equals(opExpected, opOptimize);
        if (!b) {
            System.err.println("** Input:");
            System.err.print(opToOptimize);
            System.err.println("** Expected:");
            System.err.print(opExpected);
            System.err.println("** Actual:");
            System.err.print(opOptimize);
            System.err.println("-------------------");
        }
    }
    assertEquals(opExpected, opOptimize);
}

Example 62 with Op

use of org.apache.jena.sparql.algebra.Op in project jena by apache.

the class TestOptimizer method combine_assign_04.

@Test
public void combine_assign_04() {
    String opString = StrUtils.strjoinNL("(assign ((?x 2))", "  (assign ((?y 3))", "    (distinct", "      (assign ((?a 'A') (?b 'B'))", "        (assign ((?c 'C'))", "          (table unit)", "        )))))");
    String opExpectedString = StrUtils.strjoinNL("(assign ((?y 3) (?x 2))", "  (distinct", "    (assign ((?c 'C') (?a 'A') (?b 'B'))", "      (table unit))))");
    Op op = SSE.parseOp(opString);
    check(op, new TransformExtendCombine(), opExpectedString);
}

Example 63 with Op

use of org.apache.jena.sparql.algebra.Op in project jena by apache.

the class TestAlgebraTranslate method test.

protected void test(String qs, String... y) {
    qs = "SELECT * {\n" + qs + "\n}";
    Query query = QueryFactory.create(qs, Syntax.syntaxARQ);
    String opStr = StrUtils.strjoinNL(y);
    Op opExpected = SSE.parseOp(opStr);
    Op opActual = this.getGenerator().compile(query);
    assertEquals(opExpected, opActual);
}

Example 64 with Op

use of org.apache.jena.sparql.algebra.Op in project jena by apache.

the class TestOpAsQuery method test_equivalentQuery.

// There 3 classes of transformations: there are 3 main test operations.
//   test_roundTripQuery: The same query is recovered from OpAsQuery
//   test_roundTripAlegbra: Different queries with the same alegra forms
//   test_equivalentQuery: Different equivalent queries - same answers, different algebra.
//   test_algebraToQuery: algebra to query (e.g. optimization shapes)
// 
// test_roundTripQuery is test_equivalentQuery with same input and expected.
// + quad variants.
public static void test_equivalentQuery(String input, String expected) {
    Query orig = QueryFactory.create(input, Syntax.syntaxSPARQL_11);
    Op toReconstruct = Algebra.compile(orig);
    Query got = OpAsQuery.asQuery(toReconstruct);
    Query result = QueryFactory.create(expected, Syntax.syntaxSPARQL_11);
    assertEquals(result, got);
}

Example 65 with Op

use of org.apache.jena.sparql.algebra.Op in project jena by apache.

the class TestPattern2Join method test4.

private static void test4(String pattern, String... joinForm) {
    Query q = QueryFactory.create("PREFIX : <http://example/> SELECT * " + pattern);
    Op op = Algebra.compile(q.getQueryPattern());
    op = Algebra.toQuadForm(op);
    test(op, joinForm);
}