| /* |
| * 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.feature; |
| |
| import org.eclipse.persistence.exceptions.*; |
| import org.eclipse.persistence.expressions.*; |
| |
| /** |
| * Test the functionality of ExceptionHandler. |
| * ExceptionHandler can catch errors that occur on queries or during database access. |
| * The exception handler has the option of re-throwing the exception, throwing a different |
| * exception or re-trying the query or database operation. |
| */ |
| public class Handler implements ExceptionHandler, java.io.Serializable { |
| |
| /** |
| * PUBLIC: |
| */ |
| public Handler() { |
| super(); |
| } |
| |
| /** |
| * PUBLIC: |
| * To test the functionality of ExceptionHandler. |
| * Handles QueryException and DatabaseException. |
| */ |
| @Override |
| public Object handleException(RuntimeException exception) { |
| if (exception instanceof QueryException) { |
| QueryException queryException = (QueryException)exception; |
| Expression exp = new ExpressionBuilder().get("address").get("province").equal("ONT"); |
| queryException.getQuery().setSelectionCriteria(exp); |
| return queryException.getSession().executeQuery(queryException.getQuery()); |
| } else if (exception instanceof DatabaseException) { |
| DatabaseException databaseException = (DatabaseException)exception; |
| databaseException.getAccessor().disconnect(databaseException.getSession()); |
| databaseException.getAccessor().reestablishConnection(databaseException.getSession()); |
| if (databaseException.getQuery().getSQLString().equals("select * from employee")) { |
| throw exception; |
| } |
| databaseException.getQuery().setSQLString("select * from EMPLOYEE"); |
| return databaseException.getSession().executeQuery(databaseException.getQuery()); |
| |
| } |
| return null; |
| } |
| } |