001/*
002 * Copyright 2002-2012 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.core.NestedRuntimeException;
020
021/**
022 * Root of the hierarchy of data access exceptions discussed in
023 * <a href="https://www.amazon.com/exec/obidos/tg/detail/-/0764543857/">Expert One-On-One J2EE Design and Development</a>.
024 * Please see Chapter 9 of this book for detailed discussion of the
025 * motivation for this package.
026 *
027 * <p>This exception hierarchy aims to let user code find and handle the
028 * kind of error encountered without knowing the details of the particular
029 * data access API in use (e.g. JDBC). Thus it is possible to react to an
030 * optimistic locking failure without knowing that JDBC is being used.
031 *
032 * <p>As this class is a runtime exception, there is no need for user code
033 * to catch it or subclasses if any error is to be considered fatal
034 * (the usual case).
035 *
036 * @author Rod Johnson
037 */
038@SuppressWarnings("serial")
039public abstract class DataAccessException extends NestedRuntimeException {
040
041        /**
042         * Constructor for DataAccessException.
043         * @param msg the detail message
044         */
045        public DataAccessException(String msg) {
046                super(msg);
047        }
048
049        /**
050         * Constructor for DataAccessException.
051         * @param msg the detail message
052         * @param cause the root cause (usually from using a underlying
053         * data access API such as JDBC)
054         */
055        public DataAccessException(String msg, Throwable cause) {
056                super(msg, cause);
057        }
058
059}