/*******************************************************************************
* Copyright (c) 2012, 2015 Oracle and/or its affiliates. All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
* which accompanies this distribution.
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* Contributors:
* Oracle - initial API and implementation
*
******************************************************************************/
package org.eclipse.persistence.jpa.tests.jpql.parser;
import org.junit.Test;
import static org.eclipse.persistence.jpa.tests.jpql.EclipseLinkJPQLQueries2_5.*;
import static org.eclipse.persistence.jpa.tests.jpql.parser.JPQLParserTester.*;
/**
* Tests parsing <code><b>CONNECT BY</b></code> clause.
*
* @see org.eclipse.persistence.jpa.jpql.parser.ConnectByClause ConnectByClause
*
* @version 2.5
* @since 2.5
* @author Pascal Filion
*/
@SuppressWarnings("nls")
public final class ConnectByClauseTest extends JPQLParserTest {
@Test
public void test_JPQLQuery_01() throws Exception {
// SELECT e FROM Employee e CONNECT BY e.managers
ExpressionTester selectStatement = selectStatement(
select(variable("e")),
from(
"Employee", "e",
connectBy(collectionPath("e.managers"))
)
);
testQuery(query_001(), selectStatement);
}
@Test
public void test_JPQLQuery_02() throws Exception {
// SELECT employee
// FROM Employee employee
// START WITH employee.id = 100
// CONNECT BY employee.employees
// ORDER BY employee.last_name
SelectStatementTester selectStatement = selectStatement(
select(variable("employee")),
from(
"Employee", "employee",
startWith(path("employee.id").equal(numeric(100))),
connectBy(collectionPath("employee.employees"))
),
orderBy(orderByItem("employee.last_name"))
);
testQuery(query_002(), selectStatement);
}
@Test
public void test_JPQLQuery_03() throws Exception {
String jpqlQuery = "SELECT e FROM Employee e START WITH";
ExpressionTester selectStatement = selectStatement(
select(variable("e")),
from("Employee", "e", startWith(nullExpression()))
);
testInvalidQuery(jpqlQuery, selectStatement);
}
@Test
public void test_JPQLQuery_04() throws Exception {
String jpqlQuery = "SELECT e FROM Employee e CONNECT BY";
ExpressionTester selectStatement = selectStatement(
select(variable("e")),
from("Employee", "e", connectBy(nullExpression()))
);
testInvalidQuery(jpqlQuery, selectStatement);
}
@Test
public void test_JPQLQuery_05() throws Exception {
String jpqlQuery = "SELECT e FROM Employee e CONNECT BY ORDER BY e.name";
ConnectByClauseTester connectBy = connectBy(nullExpression());
connectBy.hasSpaceAfterConnectBy = true;
ExpressionTester selectStatement = selectStatement(
select(variable("e")),
from("Employee", "e", connectBy),
orderBy("e.name")
);
testInvalidQuery(jpqlQuery, selectStatement);
}
}