001    /*
002     * Licensed to the Apache Software Foundation (ASF) under one
003     * or more contributor license agreements.  See the NOTICE file
004     * distributed with this work for additional information
005     * regarding copyright ownership.  The ASF licenses this file
006     * to you under the Apache License, Version 2.0 (the
007     * "License"); you may not use this file except in compliance
008     * with the License.  You may obtain a copy of the License at
009     *
010     *     http://www.apache.org/licenses/LICENSE-2.0
011     *
012     * Unless required by applicable law or agreed to in writing,
013     * software distributed under the License is distributed on an
014     * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015     * KIND, either express or implied.  See the License for the
016     * specific language governing permissions and limitations
017     * under the License.
018     */
019    package org.apache.shiro.dao;
020    
021    import org.apache.shiro.ShiroException;
022    
023    /**
024     * Generic exception representing a problem when attempting to access data.
025     * <p/>
026     * The idea was borrowed from the Spring Framework, which has a nice model for a generic DAO exception hierarchy.
027     * Unfortunately we can't use it as we can't force a Spring API usage on all Shiro end-users.
028     *
029     * @since 1.2
030     */
031    public abstract class DataAccessException extends ShiroException {
032    
033        /**
034         * Constructs a DataAccessException with a message explaining the cause of the exception.
035         *
036         * @param message the message explaining the cause of the exception
037         */
038        public DataAccessException(String message) {
039            super(message);
040        }
041    
042        /**
043         * Constructs a DataAccessException with a message explaining the cause of the exception.
044         *
045         * @param message the explanation
046         * @param cause   the root cause of the exception, typically an API-specific exception
047         */
048        public DataAccessException(String message, Throwable cause) {
049            super(message, cause);
050        }
051    }