| /* |
| * 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.math.RoundingMode; |
| import java.util.*; |
| import org.eclipse.persistence.testing.framework.*; |
| import org.eclipse.persistence.expressions.*; |
| import org.eclipse.persistence.testing.models.employee.domain.*; |
| import org.eclipse.persistence.queries.*; |
| import org.eclipse.persistence.internal.helper.*; |
| import java.math.BigDecimal; |
| |
| public class Scenario1_9c extends ReportQueryTestCase { |
| public Scenario1_9c() { |
| setDescription("AVG aggregate function"); |
| } |
| |
| @Override |
| protected void buildExpectedResults() { |
| Vector employees = getSession().readAllObjects(Employee.class); |
| BigDecimal sum = new BigDecimal(0); |
| |
| for (Enumeration e = employees.elements(); e.hasMoreElements();) { |
| Employee emp = (Employee)e.nextElement(); |
| sum = sum.add(new BigDecimal(emp.getSalary())); |
| } |
| |
| addResult(new Object[] { sum.divide(new BigDecimal(employees.size()), RoundingMode.HALF_UP) }, null); |
| } |
| @Override |
| protected void setup() throws Exception |
| { |
| super.setup(); |
| reportQuery = new ReportQuery(new ExpressionBuilder()); |
| |
| reportQuery.setReferenceClass(Employee.class); |
| reportQuery.addAverage("salary"); |
| } |
| |
| @Override |
| protected void verify() { |
| if (results.size() != expectedResults.size()) { |
| throw new TestErrorException("ReportQuery test failed: The result size are different"); |
| } |
| BigDecimal expected = (BigDecimal)((ReportQueryResult)expectedResults.firstElement()).getByIndex(0); |
| BigDecimal result = ConversionManager.getDefaultManager().convertObject(((ReportQueryResult)results.firstElement()).getByIndex(0), BigDecimal.class); |
| if (!Helper.compareBigDecimals(expected, result)) { |
| throw new TestErrorException("ReportQuery test failed: The results did not match (" + expected + ", " + result + ")"); |
| } |
| } |
| } |