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/*
* Copyright (c) 1998, 2021 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 v. 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0,
* or the Eclipse Distribution License v. 1.0 which is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
*/
// Contributors:
// Oracle - initial API and implementation from Oracle TopLink
package org.eclipse.persistence.testing.tests.queries.report;
import java.util.*;
import org.eclipse.persistence.expressions.*;
import org.eclipse.persistence.testing.models.employee.domain.*;
import org.eclipse.persistence.queries.*;
/**
* ReportQuery test with useDistinct()
*/
public class UseDistinctScenario extends ReportQueryTestCase {
/**
* UseDistinctScenario constructor comment.
*/
public UseDistinctScenario() {
setDescription("Read query using useDistinct()");
}
@Override
protected void buildExpectedResults() {
ReadAllQuery query = new ReadAllQuery();
query.setReferenceClass(Employee.class);
Vector employees = (Vector)getSession().executeQuery(query);
Vector distinctEmployees = new Vector();
// initialize distinctEmployees
distinctEmployees.addElement(employees.elementAt(0));
// check employees with duplicate province and add only distinct employees to distinctEmployees
for (int i = 1; i < employees.size(); i++) {
boolean duplicateFound = false;
// iterate through distinctEmployees to check for duplicate provinces, if found, employee not added
for (int j = 0; j < distinctEmployees.size(); j++) {
if ((((Employee)employees.elementAt(i)).getAddress().getProvince()).equals((((Employee)distinctEmployees.elementAt(j)).getAddress().getProvince()))) {
duplicateFound = true;
}
}
if (!duplicateFound) {
distinctEmployees.addElement(employees.elementAt(i));
}
}
for (Enumeration e = distinctEmployees.elements(); e.hasMoreElements();) {
Employee emp = (Employee)e.nextElement();
Object[] result = new Object[1];
result[0] = emp.getAddress().getProvince();
addResult(result, null);
}
}
@Override
protected void setup() throws Exception {
super.setup();
reportQuery = new ReportQuery(new ExpressionBuilder());
reportQuery.setReferenceClass(Employee.class);
reportQuery.addAttribute("province", reportQuery.getExpressionBuilder().get("address").get("province"));
reportQuery.useDistinct();
}
}