001    /*
002     * Copyright 2003-2004 The Apache Software Foundation.
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     *      http://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    
017    package org.apache.commons.mapper;
018    
019    /**
020     * MapperException encapsulates everything that could go wrong with mappers.
021     * Often this will wrap another type of exception such as SQLException so that 
022     * callers are insulated from implementation specific exceptions.  Callers can check 
023     * the getCause() method for the wrapped exception.
024     */
025    public class MapperException extends Exception {
026    
027        private Throwable cause = null;
028    
029        /**
030         * Constructor for MapperException.
031         */
032        public MapperException() {
033            super();
034        }
035    
036        /**
037         * Constructor for MapperException.
038         * @param message
039         */
040        public MapperException(String message) {
041            super(message);
042        }
043    
044        /**
045         * Constructor for MapperException.
046         * @param message
047         * @param cause
048         */
049        public MapperException(String message, Throwable cause) {
050            super(message);
051    
052            this.cause = cause;
053        }
054    
055        /**
056         * Constructor for MapperException.
057         * @param cause
058         */
059        public MapperException(Throwable cause) {
060            this.cause = cause;
061        }
062    
063        /**
064         * Returns the cause.
065         * @return Throwable
066         */
067        public Throwable getCause() {
068            return this.cause;
069        }
070    
071    }