001/* $Id: DigesterLoadingException.java 476205 2006-11-17 16:43:10Z dennisl $
002 *
003 * Licensed to the Apache Software Foundation (ASF) under one or more
004 * contributor license agreements.  See the NOTICE file distributed with
005 * this work for additional information regarding copyright ownership.
006 * The ASF licenses this file to You under the Apache License, Version 2.0
007 * (the "License"); you may not use this file except in compliance with
008 * 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, software
013 * distributed under the License is distributed on an "AS IS" BASIS,
014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
015 * See the License for the specific language governing permissions and
016 * limitations under the License.
017 */ 
018
019
020package org.apache.commons.digester.xmlrules;
021
022
023/**
024 * Thrown when an error occurs while parsing XML into Digester rules.
025 *
026 * @since 1.2
027 */
028
029public class DigesterLoadingException extends Exception {
030
031    private Throwable cause = null;
032
033    /**
034     * @param msg a String detailing the reason for the exception
035     */
036    public DigesterLoadingException(String msg) {
037        super(msg);
038    }
039
040    /**
041     * @param cause underlying exception that caused this to be thrown
042     */
043    public DigesterLoadingException(Throwable cause) {
044        this(cause.getMessage());
045        this.cause = cause;
046    }
047
048    /**
049     * @param msg a String detailing the reason for the exception
050     * @param cause underlying exception that caused this to be thrown
051     */
052    public DigesterLoadingException(String msg, Throwable cause) {
053        this(msg);
054        this.cause = cause;
055    }
056
057    /**
058     * Return the cause of this exception (if any) as specified in the
059     * exception constructor.
060     * 
061     * @since 1.8
062     */
063    public Throwable getCause() {
064        return cause;
065    }
066}