Examples with Signature io.trino.metadata.Signature used on opensource projects

Example 31 with Signature

use of io.trino.metadata.Signature in project trino by trinodb.

the class TestAnnotationEngineForScalars method testMultiScalarParse.

@Test
public void testMultiScalarParse() {
    Signature expectedSignature1 = new Signature("static_method_scalar_1", DOUBLE.getTypeSignature(), ImmutableList.of(DOUBLE.getTypeSignature()));
    Signature expectedSignature2 = new Signature("static_method_scalar_2", BIGINT.getTypeSignature(), ImmutableList.of(BIGINT.getTypeSignature()));
    List<SqlScalarFunction> functions = ScalarFromAnnotationsParser.parseFunctionDefinitions(MultiScalarFunction.class);
    assertEquals(functions.size(), 2);
    ParametricScalar scalar1 = (ParametricScalar) functions.stream().filter(function -> function.getFunctionMetadata().getSignature().equals(expectedSignature1)).collect(toImmutableList()).get(0);
    ParametricScalar scalar2 = (ParametricScalar) functions.stream().filter(function -> function.getFunctionMetadata().getSignature().equals(expectedSignature2)).collect(toImmutableList()).get(0);
    assertImplementationCount(scalar1, 1, 0, 0);
    assertImplementationCount(scalar2, 1, 0, 0);
    FunctionMetadata functionMetadata1 = scalar1.getFunctionMetadata();
    assertEquals(functionMetadata1.getSignature(), expectedSignature1);
    assertTrue(functionMetadata1.isDeterministic());
    assertFalse(functionMetadata1.isHidden());
    assertEquals(functionMetadata1.getDescription(), "Simple scalar with single implementation based on method 1");
    FunctionMetadata functionMetadata2 = scalar2.getFunctionMetadata();
    assertEquals(functionMetadata2.getSignature(), expectedSignature2);
    assertFalse(functionMetadata2.isDeterministic());
    assertTrue(functionMetadata2.isHidden());
    assertEquals(functionMetadata2.getDescription(), "Simple scalar with single implementation based on method 2");
}

Example 32 with Signature

use of io.trino.metadata.Signature in project trino by trinodb.

the class TestAnnotationEngineForScalars method testSingleImplementationScalarParse.

@Test
public void testSingleImplementationScalarParse() {
    Signature expectedSignature = new Signature("single_implementation_parametric_scalar", DOUBLE.getTypeSignature(), ImmutableList.of(DOUBLE.getTypeSignature()));
    List<SqlScalarFunction> functions = ScalarFromAnnotationsParser.parseFunctionDefinition(SingleImplementationScalarFunction.class);
    assertEquals(functions.size(), 1);
    ParametricScalar scalar = (ParametricScalar) functions.get(0);
    FunctionMetadata functionMetadata = scalar.getFunctionMetadata();
    assertEquals(functionMetadata.getSignature(), expectedSignature);
    assertTrue(functionMetadata.isDeterministic());
    assertFalse(functionMetadata.isHidden());
    assertEquals(functionMetadata.getDescription(), "Simple scalar with single implementation based on class");
    assertFalse(functionMetadata.getFunctionNullability().isArgumentNullable(0));
    assertImplementationCount(scalar, 1, 0, 0);
    BoundSignature boundSignature = new BoundSignature(expectedSignature.getName(), DOUBLE, ImmutableList.of(DOUBLE));
    ChoicesScalarFunctionImplementation specialized = (ChoicesScalarFunctionImplementation) scalar.specialize(boundSignature, new FunctionDependencies(FUNCTION_MANAGER::getScalarFunctionInvoker, ImmutableMap.of(), ImmutableSet.of()));
    assertFalse(specialized.getChoices().get(0).getInstanceFactory().isPresent());
}

Example 33 with Signature

use of io.trino.metadata.Signature in project trino by trinodb.

the class TestAnnotationEngineForScalars method testPartiallyFixedTypeParameterParse.

@Test
public void testPartiallyFixedTypeParameterParse() {
    Signature expectedSignature = new Signature("partially_fixed_type_parameter_scalar_function", ImmutableList.of(typeVariable("T1"), typeVariable("T2")), ImmutableList.of(), BIGINT.getTypeSignature(), ImmutableList.of(BIGINT.getTypeSignature()), false);
    List<SqlScalarFunction> functions = ScalarFromAnnotationsParser.parseFunctionDefinition(PartiallyFixedTypeParameterScalarFunction.class);
    assertEquals(functions.size(), 1);
    ParametricScalar scalar = (ParametricScalar) functions.get(0);
    assertImplementationCount(scalar, 0, 0, 1);
    List<ParametricScalarImplementationChoice> parametricScalarImplementationChoices = scalar.getImplementations().getGenericImplementations().get(0).getChoices();
    assertEquals(parametricScalarImplementationChoices.size(), 1);
    List<ImplementationDependency> dependencies = parametricScalarImplementationChoices.get(0).getDependencies();
    assertEquals(dependencies.size(), 1);
    FunctionMetadata functionMetadata = scalar.getFunctionMetadata();
    assertEquals(functionMetadata.getSignature(), expectedSignature);
    assertTrue(functionMetadata.isDeterministic());
    assertFalse(functionMetadata.isHidden());
    assertEquals(functionMetadata.getDescription(), "Parametric scalar that uses TypeParameter with partially fixed type");
}

Example 34 with Signature

use of io.trino.metadata.Signature in project trino by trinodb.

the class TestAnnotationEngineForScalars method testParametricScalarParse.

@Test
public void testParametricScalarParse() {
    Signature expectedSignature = new Signature("parametric_scalar", ImmutableList.of(typeVariable("T")), ImmutableList.of(), new TypeSignature("T"), ImmutableList.of(new TypeSignature("T")), false);
    List<SqlScalarFunction> functions = ScalarFromAnnotationsParser.parseFunctionDefinition(ParametricScalarFunction.class);
    assertEquals(functions.size(), 1);
    ParametricScalar scalar = (ParametricScalar) functions.get(0);
    assertImplementationCount(scalar, 0, 2, 0);
    FunctionMetadata functionMetadata = scalar.getFunctionMetadata();
    assertEquals(functionMetadata.getSignature(), expectedSignature);
    assertTrue(functionMetadata.isDeterministic());
    assertFalse(functionMetadata.isHidden());
    assertEquals(functionMetadata.getDescription(), "Parametric scalar description");
}