| /* |
| * 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: |
| // dminsky - initial API and implementation |
| package org.eclipse.persistence.testing.tests.identitymaps.cacheinvalidation; |
| |
| import java.util.*; |
| |
| import org.eclipse.persistence.internal.helper.Helper; |
| import org.eclipse.persistence.sessions.*; |
| |
| import org.eclipse.persistence.testing.framework.*; |
| import org.eclipse.persistence.testing.models.insurance.*; |
| |
| /** |
| * Test the refreshing of an object graph after invalidation |
| * <p> |
| * No duplicate SQL statements should be issued by the UnitOfWork when these |
| * objects are accessed from the cache, rather than queried for from the DB. |
| * <p> |
| * The Insurance model is used, as this model does not utilize indirection. |
| * @author dminsky |
| */ |
| public class UnitOfWorkRefreshAfterInvalidationTest extends TestCase { |
| |
| protected boolean oldBindingValue; |
| protected QuerySQLTracker sqlTracker; |
| protected UnitOfWork uow; |
| protected PolicyHolder holder; |
| |
| public UnitOfWorkRefreshAfterInvalidationTest() { |
| super(); |
| setDescription("Test the refreshing of an object graph after invalidation"); |
| } |
| |
| @Override |
| public void setup() { |
| // for SQL tracker, do not bind |
| this.oldBindingValue = getSession().getLogin().shouldBindAllParameters(); |
| getSession().getLogin().setShouldBindAllParameters(false); |
| |
| getSession().getIdentityMapAccessor().initializeAllIdentityMaps(); |
| |
| // query for relevant insurance data |
| this.holder = (PolicyHolder) getSession().readObject(PolicyHolder.example2()); |
| assertNotNull(holder); |
| |
| // here's the key - invalidate all objects |
| getSession().getIdentityMapAccessor().invalidateAll(); |
| |
| // setup UnitOfWork |
| this.uow = getSession().acquireUnitOfWork(); |
| |
| // create tracker object for query SQL |
| this.sqlTracker = new QuerySQLTracker(getSession()); |
| } |
| |
| @Override |
| public void test() { |
| // read object |
| PolicyHolder policyHolderRead = (PolicyHolder) this.uow.readObject(PolicyHolder.example2()); |
| // object read should not be null |
| assertNotNull(policyHolderRead); |
| } |
| |
| @Override |
| public void verify() { |
| // check for duplicates |
| List<String> statements = this.sqlTracker.getSqlStatements(); |
| Vector errors = new Vector(); |
| for (int i = 0; i < statements.size(); i++) { |
| String statement = statements.get(i); |
| // the statements collection should not contain any duplicates |
| int occurrences = Helper.countOccurrencesOf(statement, statements); |
| if (occurrences > 1) { |
| String errorText = "SQL statement executed " + occurrences + " times: [" + statement + "] (Expected 1)"; |
| if (!errors.contains(errorText)) { |
| errors.add(errorText); |
| } |
| } |
| } |
| // problems were detected, errors vector has > 0 entries - print a verbose list of erroneous statements |
| if (!errors.isEmpty()) { |
| StringBuffer buffer = new StringBuffer(); |
| buffer.append("Errors occurred with duplicate SQL being executed whilst building an object tree. The UnitOfWork cache should have been hit instead:"); |
| buffer.append(Helper.cr()); |
| for (int i = 0; i < errors.size(); i++) { |
| buffer.append(errors.get(i)); |
| buffer.append(Helper.cr()); |
| } |
| throw new TestErrorException(buffer.toString()); |
| } |
| } |
| |
| @Override |
| public void reset() { |
| getSession().getIdentityMapAccessor().initializeAllIdentityMaps(); |
| // reset parameter binding |
| getSession().getLogin().setShouldBindAllParameters(this.oldBindingValue); |
| // reset UnitOfWork and SQL tracker |
| this.uow.release(); |
| this.uow = null; |
| this.sqlTracker.remove(); |
| this.sqlTracker = null; |
| this.holder = null; |
| } |
| |
| } |