| /* |
| * 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; |
| |
| import org.eclipse.persistence.expressions.*; |
| import org.eclipse.persistence.queries.*; |
| |
| import org.eclipse.persistence.testing.framework.*; |
| import org.eclipse.persistence.testing.models.employee.domain.*; |
| |
| /** |
| * Added to increase code coverage. |
| * Should be used both for local and for remote scrollable cursors. |
| */ |
| public class ScrollableCursorNavigationAPITest extends TestCase { |
| protected boolean useConforming = false; |
| ConformingTestConfiguration configuration = null; |
| |
| protected String navigationError = null; |
| protected Exception caughtException = null; |
| |
| protected boolean TYPE_SCROLL_INSENSITIVE_isSupported; |
| protected boolean CONCUR_UPDATABLE_isSupported; |
| |
| public ScrollableCursorNavigationAPITest() { |
| setDescription("This test tests various API which is used to navigate scrollable cursors."); |
| |
| } |
| |
| public ScrollableCursorNavigationAPITest(boolean useConforming) { |
| this(); |
| if (useConforming) { |
| setName("ScrollableCursorNavigationAPIConformingTest"); |
| this.useConforming = useConforming; |
| this.configuration = new ConformingTestConfiguration(); |
| } |
| } |
| |
| @Override |
| protected void setup() { |
| if (getSession().getPlatform().isDB2() || getSession().getPlatform().isAccess() || |
| getSession().getPlatform().isTimesTen() || getSession().getPlatform().isHANA()) { |
| throw new TestWarningException("ScrollableCursor is not supported on this platform"); |
| } |
| //MySQL ResultSet.relative(int) does not work when attempting to move beyond the first-1/last+1 row. Seems a bug |
| if (getSession().getPlatform().isMySQL()) { |
| throw new TestWarningException("Not supported in MySQL"); |
| } |
| |
| if (getSession().getPlatform().isPervasive()) { |
| throw new TestWarningException("This test is not supported on the Pervasive platform."); |
| } |
| |
| TYPE_SCROLL_INSENSITIVE_isSupported = true; |
| CONCUR_UPDATABLE_isSupported = true; |
| if(getSession().getPlatform().isSQLServer()) { |
| // In case either TYPE_SCROLL_INSENSITIVE or CONCUR_UPDATABLE used |
| // MS SQL Server Version: 9.00.2050; MS SQL Server 2005 JDBC Driver Version: 1.2.2828.100 throws exception: |
| // com.microsoft.sqlserver.jdbc.SQLServerException: The cursor type/concurrency combination is not supported. |
| TYPE_SCROLL_INSENSITIVE_isSupported = false; |
| CONCUR_UPDATABLE_isSupported = false; |
| } |
| if(getSession().getPlatform().isSymfoware()) { |
| // Symfoware supports updatable cursors, but considers SQL queries |
| // that select from multiple tables as non-updatable, thus raising |
| // an exception for this test. |
| CONCUR_UPDATABLE_isSupported = false; |
| } |
| getSession().getIdentityMapAccessor().initializeAllIdentityMaps(); |
| |
| if (configuration != null) { |
| configuration.setup(getSession()); |
| getExecutor().setSession(configuration.getUnitOfWork()); |
| } |
| } |
| |
| @Override |
| public void test() { |
| |
| ReadAllQuery query = new ReadAllQuery(); |
| |
| if (configuration != null) { |
| ExpressionBuilder emp = new ExpressionBuilder(); |
| Expression exp = emp.get("salary").greaterThan(50000); |
| query.setSelectionCriteria(exp); |
| query.conformResultsInUnitOfWork(); |
| } |
| ScrollableCursor cursor = null; |
| |
| try { |
| query.setReferenceClass(Employee.class); |
| if(TYPE_SCROLL_INSENSITIVE_isSupported && CONCUR_UPDATABLE_isSupported) { |
| query.useScrollableCursor(2); |
| } else { |
| ScrollableCursorPolicy policy = new ScrollableCursorPolicy(); |
| if(!TYPE_SCROLL_INSENSITIVE_isSupported) { |
| policy.setResultSetType(ScrollableCursorPolicy.TYPE_SCROLL_SENSITIVE); |
| } |
| if(!CONCUR_UPDATABLE_isSupported) { |
| policy.setResultSetConcurrency(ScrollableCursorPolicy.CONCUR_READ_ONLY); |
| } |
| policy.setPageSize(2); |
| query.useScrollableCursor(policy); |
| } |
| cursor = (ScrollableCursor)getSession().executeQuery(query); |
| |
| try { |
| boolean isFirst = cursor.first(); |
| if (!cursor.isFirst() || !isFirst) { |
| navigationError = "cursor.first() does not result in cursor.isFirst() returning true."; |
| } |
| Object second = cursor.next(); |
| Object first = cursor.previous(); |
| if (first.equals(second)) { |
| navigationError = "cursor.next() and cursor.previous() are not complementary."; |
| } |
| if (!second.equals(cursor.next())) { |
| navigationError = "cursor.next() does not move the cursor forward."; |
| } |
| boolean isRelative = cursor.relative(1); |
| if (!isRelative || !second.equals(cursor.previous())) { |
| navigationError = "cursor.relative() does not move the cursor the proper number of spaces."; |
| } |
| boolean isAbsolute = cursor.absolute(1); |
| if (!second.equals(cursor.next())) { |
| navigationError = "cursor.absolute(0) move a cursor to the beginning of the cursor."; |
| } |
| cursor.beforeFirst(); |
| if (!cursor.isBeforeFirst()) { |
| navigationError = |
| "cursor.beforeFirst() does not result in cursor.isBeforeFirst() returning true."; |
| } |
| if (!first.equals(cursor.next())) { |
| navigationError = "cursor.beforeFirst() does not set the cursor position properly."; |
| } |
| |
| boolean isLast = cursor.last(); |
| if (!isLast || !cursor.isLast()) { |
| navigationError = "cursor.last() does not result in cursor.isLast() returning true."; |
| } |
| cursor.afterLast(); |
| |
| if (!cursor.isAfterLast()) { |
| navigationError = "cursor.afterLast() does not result in cursor.isAfterLast() returning true."; |
| } |
| Object last = cursor.previous(); |
| int size = cursor.size(); |
| cursor.relative(size); |
| Object lastBySize = cursor.previous(); |
| if (!last.equals(lastBySize)) { |
| navigationError = "The last item in the list is not correct."; |
| } |
| |
| } catch (org.eclipse.persistence.exceptions.QueryException ex) { |
| caughtException = ex; |
| } |
| |
| } finally { |
| if (cursor != null) { |
| cursor.close(); |
| } |
| } |
| } |
| |
| @Override |
| public void reset() { |
| if (configuration != null) { |
| getExecutor().setSession(configuration.getUnitOfWork().getParent()); |
| configuration.reset(); |
| } |
| getSession().getIdentityMapAccessor().initializeIdentityMaps(); |
| } |
| |
| |
| @Override |
| protected void verify() { |
| |
| if (navigationError != null) { |
| throw new TestErrorException("Cursor Navigation produced incorrect results. " + navigationError); |
| } |
| |
| if (caughtException != null) { |
| throw new TestErrorException("Cursor navigation caused a QueryException.", caughtException); |
| } |
| |
| } |
| |
| } |