Examples with ObjectExpression org.eclipse.persistence.jpa.jpql.parser.ObjectExpression used on opensource projects

Example 1 with ObjectExpression

use of org.eclipse.persistence.jpa.jpql.parser.ObjectExpression in project eclipselink by eclipse-ee4j.

the class JPQLExpressionTest1_0 method testGetExpression_2.

@Test
public void testGetExpression_2() {
    String query = "SELECT OBJECT(e), COUNT(DISTINCT e) FROM Employee e";
    JPQLExpression jpqlExpression = JPQLQueryBuilder.buildQuery(query, getGrammar(), true);
    Expression expression = jpqlExpression.getExpression(query, 0);
    assertNotNull(expression);
    assertTrue("The expression was " + expression.getClass().getSimpleName(), expression instanceof JPQLExpression);
    expression = jpqlExpression.getExpression(query, 14);
    assertNotNull(expression);
    assertTrue("The expression was " + expression.getClass().getSimpleName(), expression instanceof ObjectExpression);
    // In 'SELECT'
    for (int index = 1; index < 8; index++) {
        expression = jpqlExpression.getExpression(query, index);
        assertNotNull(expression);
        assertTrue("The expression was " + expression.getClass().getSimpleName(), expression instanceof SelectClause);
    }
    // In 'OBJECT('
    for (int index = 8; index < 15; index++) {
        expression = jpqlExpression.getExpression(query, index);
        assertNotNull(expression);
        assertTrue("The expression was " + expression.getClass().getSimpleName(), expression instanceof ObjectExpression);
    }
    // In 'e' of 'OBJECT(e)'
    expression = jpqlExpression.getExpression(query, 15);
    assertNotNull(expression);
    assertTrue("The expression was " + expression.getClass().getSimpleName(), expression instanceof IdentificationVariable);
    expression = jpqlExpression.getExpression(query, 17);
    assertNotNull(expression);
    assertTrue("The expression was " + expression.getClass().getSimpleName(), expression instanceof CollectionExpression);
    expression = jpqlExpression.getExpression(query, 18);
    assertNotNull(expression);
    assertTrue("The expression was " + expression.getClass().getSimpleName(), expression instanceof CollectionExpression);
    expression = jpqlExpression.getExpression(query, 24);
    assertNotNull(expression);
    assertTrue("The expression was " + expression.getClass().getSimpleName(), expression instanceof CountFunction);
    expression = jpqlExpression.getExpression(query, 35);
    assertNotNull(expression);
    assertTrue("The expression was " + expression.getClass().getSimpleName(), expression instanceof CountFunction);
    expression = jpqlExpression.getExpression(query, 36);
    assertNotNull(expression);
    assertTrue("The expression was " + expression.getClass().getSimpleName(), expression instanceof SelectStatement);
}