| /* |
| * 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.performance.reading; |
| |
| import org.eclipse.persistence.queries.*; |
| import org.eclipse.persistence.testing.models.performance.toplink.*; |
| import org.eclipse.persistence.testing.framework.*; |
| |
| /** |
| * This test compares the performance of cursored streams vs scrollable cursors. |
| */ |
| public class ReadAllStreamvsCursorTest extends PerformanceComparisonTestCase { |
| public ReadAllStreamvsCursorTest() { |
| setDescription("This test compares the performance of cursored streams vs scrollable cursors."); |
| addReadAllScrollableCursorTest(); |
| } |
| |
| /** |
| * Read all employees with cursored stream. |
| */ |
| @Override |
| public void test() throws Exception { |
| ReadAllQuery query = new ReadAllQuery(Employee.class); |
| query.useCursoredStream(1, 1); |
| CursoredStream stream = (CursoredStream)getSession().executeQuery(query); |
| for (int index = 0; index < 10; index++) { |
| if (stream.hasMoreElements()) { |
| stream.nextElement(); |
| } |
| } |
| stream.close(); |
| } |
| |
| /** |
| * Read all employees with scrollable cursor. |
| */ |
| public void addReadAllScrollableCursorTest() { |
| PerformanceComparisonTestCase test = new PerformanceComparisonTestCase() { |
| @Override |
| public void test() { |
| ReadAllQuery query = new ReadAllQuery(Employee.class); |
| query.useScrollableCursor(); |
| ScrollableCursor cursor = (ScrollableCursor)getSession().executeQuery(query); |
| for (int index = 0; index < 10; index++) { |
| if (cursor.hasNext()) { |
| cursor.next(); |
| } |
| } |
| cursor.close(); |
| } |
| }; |
| test.setName("ReadAllScrollableCursorTest"); |
| test.setAllowableDecrease(-90); |
| addTest(test); |
| } |
| } |