| /* |
| * 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 java.util.*; |
| import org.eclipse.persistence.queries.*; |
| import org.eclipse.persistence.expressions.*; |
| import org.eclipse.persistence.testing.models.performance.toplink.*; |
| import org.eclipse.persistence.testing.framework.*; |
| |
| /** |
| * This test compares the performance of cache hits and the various in-memory querying options. |
| */ |
| public class ReadObjectCachevsDatabaseTest extends PerformanceComparisonTestCase { |
| protected List allObjects; |
| protected Employee employee; |
| protected ReadObjectQuery idQuery; |
| protected ReadObjectQuery cacheOnlyNameQuery; |
| protected ReadObjectQuery cacheDatabaseNameQuery; |
| |
| public ReadObjectCachevsDatabaseTest() { |
| setDescription("This test compares the performance of cache hits and the various in-memory querying options."); |
| addCachedReadObjectTest(); |
| addInMemoryReadObjectTest(); |
| addCacheThenDatabaseMissReadObjectTest(); |
| } |
| |
| /** |
| * Find any employee. |
| */ |
| @Override |
| public void setup() { |
| Expression expression = new ExpressionBuilder().get("firstName").equal("Bob"); |
| employee = (Employee)getSession().readObject(Employee.class, expression); |
| // Fully load the cache. |
| allObjects = getSession().readAllObjects(Employee.class); |
| |
| idQuery = new ReadObjectQuery(Employee.class); |
| ExpressionBuilder builder = new ExpressionBuilder(); |
| idQuery.setSelectionCriteria(builder.get("id").equal(employee.getId())); |
| |
| cacheOnlyNameQuery = new ReadObjectQuery(Employee.class); |
| builder = new ExpressionBuilder(); |
| cacheOnlyNameQuery.setSelectionCriteria(builder.get("firstName").equal(employee.getFirstName()).and(builder.get("lastName").equal(employee.getLastName()))); |
| cacheOnlyNameQuery.checkCacheOnly(); |
| |
| cacheDatabaseNameQuery = new ReadObjectQuery(Employee.class); |
| builder = new ExpressionBuilder(); |
| cacheDatabaseNameQuery.setSelectionCriteria(builder.get("firstName").equal(employee.getFirstName()).and(builder.get("lastName").equal(employee.getLastName()))); |
| cacheDatabaseNameQuery.checkCacheThenDatabase(); |
| } |
| |
| /** |
| * Read employee and clear the cache, test database read. |
| */ |
| @Override |
| public void test() throws Exception { |
| getSession().getIdentityMapAccessor().removeFromIdentityMap(employee); |
| getSession().executeQuery(idQuery); |
| } |
| |
| /** |
| * Read by primary key and get a cache hit. |
| */ |
| public void addCachedReadObjectTest() { |
| PerformanceComparisonTestCase test = new PerformanceComparisonTestCase() { |
| @Override |
| public void test() { |
| getSession().executeQuery(idQuery); |
| } |
| }; |
| test.setName("CachedReadObjectTest"); |
| test.setAllowableDecrease(10000); |
| addTest(test); |
| } |
| |
| /** |
| * Read by first name in memory. |
| */ |
| public void addInMemoryReadObjectTest() { |
| PerformanceComparisonTestCase test = new PerformanceComparisonTestCase() { |
| @Override |
| public void test() { |
| getSession().executeQuery(cacheOnlyNameQuery); |
| } |
| }; |
| test.setName("InMemoryReadObjectTest"); |
| test.setAllowableDecrease(1000); |
| addTest(test); |
| } |
| |
| /** |
| * Read by first name in memory then hit the database. |
| */ |
| public void addCacheThenDatabaseMissReadObjectTest() { |
| PerformanceComparisonTestCase test = new PerformanceComparisonTestCase() { |
| @Override |
| public void test() { |
| getSession().getIdentityMapAccessor().removeFromIdentityMap(employee); |
| getSession().executeQuery(cacheDatabaseNameQuery); |
| } |
| }; |
| test.setName("CacheThenDatabaseMissReadObjectTest"); |
| test.setAllowableDecrease(-40); |
| addTest(test); |
| } |
| } |