001/* $Id: XmlLoadException.java 471661 2006-11-06 08:09:25Z skitching $
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 */
028public class XmlLoadException extends RuntimeException {
029
030    private Throwable cause = null;
031
032    /**
033     * @param cause underlying exception that caused this to be thrown
034     */
035    public XmlLoadException(Throwable cause) {
036        this(cause.getMessage());
037        this.cause = cause;
038    }
039
040    public XmlLoadException(String msg) {
041        super(msg);
042    }
043
044    public XmlLoadException(String msg, Throwable cause) {
045        this(msg);
046        this.cause = cause;
047    }
048    
049    /** 
050     * Returns the cause of this throwable or null if the cause is 
051     * nonexistent or unknown. 
052     */
053    public Throwable getCause() {
054        return cause;
055    }
056}