use of org.eclipse.persistence.jpa.jpql.parser.CountFunction 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);
}
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