| /* |
| * 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(); |
| } |
| } |