001/*
002 * Copyright 2002-2017 the original author or authors.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *      https://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package org.springframework.dao;
018
019import org.springframework.lang.Nullable;
020
021/**
022 * Exception thrown on an optimistic locking violation.
023 *
024 * <p>This exception will be thrown either by O/R mapping tools
025 * or by custom DAO implementations. Optimistic locking failure
026 * is typically <i>not</i> detected by the database itself.
027 *
028 * @author Rod Johnson
029 * @see PessimisticLockingFailureException
030 */
031@SuppressWarnings("serial")
032public class OptimisticLockingFailureException extends ConcurrencyFailureException {
033
034        /**
035         * Constructor for OptimisticLockingFailureException.
036         * @param msg the detail message
037         */
038        public OptimisticLockingFailureException(String msg) {
039                super(msg);
040        }
041
042        /**
043         * Constructor for OptimisticLockingFailureException.
044         * @param msg the detail message
045         * @param cause the root cause from the data access API in use
046         */
047        public OptimisticLockingFailureException(String msg, @Nullable Throwable cause) {
048                super(msg, cause);
049        }
050
051}