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 */
020package org.apache.mina.statemachine.event;
021
022/**
023 * Thrown when an {@link Event} passed to a state machine couldn't be handled.
024 *
025 * @author <a href="http://mina.apache.org">Apache MINA Project</a>
026 */
027public class UnhandledEventException extends RuntimeException {
028    private static final long serialVersionUID = -717373229954175430L;
029
030    private final Event event;
031
032    public UnhandledEventException(Event event) {
033        super("Unhandled event: " + event);
034        this.event = event;
035    }
036
037    /**
038     * @return the {@link Event} which couldn't be handled.
039     */
040    public Event getEvent() {
041        return event;
042    }
043}