Examples with NullLiteral io.confluent.ksql.execution.expression.tree.NullLiteral used on opensource projects

Example 16 with NullLiteral

use of io.confluent.ksql.execution.expression.tree.NullLiteral in project ksql by confluentinc.

the class InterpretedExpressionTest method shouldEvaluateIsNullPredicate.

@Test
public void shouldEvaluateIsNullPredicate() {
    // Given:
    final Expression expression1 = new IsNullPredicate(COL11);
    final Expression expression2 = new IsNullPredicate(new NullLiteral());
    // When:
    InterpretedExpression interpreter1 = interpreter(expression1);
    InterpretedExpression interpreter2 = interpreter(expression2);
    // Then:
    assertThat(interpreter1.evaluate(make(11, true)), is(false));
    assertThat(interpreter1.evaluate(make(11, null)), is(true));
    assertThat(interpreter2.evaluate(ROW), is(true));
}

Example 17 with NullLiteral

use of io.confluent.ksql.execution.expression.tree.NullLiteral in project ksql by confluentinc.

the class InterpretedExpressionTest method shouldEvaluateIsNotNullPredicate.

@Test
public void shouldEvaluateIsNotNullPredicate() {
    // Given:
    final Expression expression1 = new IsNotNullPredicate(COL11);
    final Expression expression2 = new IsNotNullPredicate(new NullLiteral());
    // When:
    InterpretedExpression interpreter1 = interpreter(expression1);
    InterpretedExpression interpreter2 = interpreter(expression2);
    // Then:
    assertThat(interpreter1.evaluate(make(11, true)), is(true));
    assertThat(interpreter1.evaluate(make(11, null)), is(false));
    assertThat(interpreter2.evaluate(ROW), is(false));
}

Example 18 with NullLiteral

use of io.confluent.ksql.execution.expression.tree.NullLiteral in project ksql by confluentinc.

the class GenericExpressionResolverTest method shouldResolveNullLiteral.

@Test
public void shouldResolveNullLiteral() {
    // Given:
    final SqlType type = SqlTypes.STRING;
    final Expression exp = new NullLiteral();
    // When:
    final Object o = new GenericExpressionResolver(type, FIELD_NAME, registry, config, "insert value", false).resolve(exp);
    // Then:
    assertThat(o, Matchers.nullValue());
}