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, 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
019package org.apache.oozie.event.listener;
020
021import org.apache.hadoop.conf.Configuration;
022import org.apache.oozie.event.BundleJobEvent;
023import org.apache.oozie.event.CoordinatorActionEvent;
024import org.apache.oozie.event.CoordinatorJobEvent;
025import org.apache.oozie.event.WorkflowActionEvent;
026import org.apache.oozie.event.WorkflowJobEvent;
027
028/**
029 * Event listener for Job notification events, defining methods corresponding to
030 * job status changes
031 */
032public abstract class JobEventListener {
033
034    /**
035     * Initialize the listener
036     * @param conf
037     */
038    public abstract void init(Configuration conf);
039
040    /**
041     * Destroy the listener
042     */
043    public abstract void destroy();
044
045    /**
046     * On workflow job transition
047     * @param wje
048     */
049    public abstract void onWorkflowJobEvent(WorkflowJobEvent wje);
050
051    /**
052     * On workflow action transition
053     * @param wae
054     */
055    public abstract void onWorkflowActionEvent(WorkflowActionEvent wae);
056
057    /**
058     * On coordinator job transition
059     * @param cje
060     */
061    public abstract void onCoordinatorJobEvent(CoordinatorJobEvent cje);
062
063    /**
064     * On coordinator action transition
065     * @param cae
066     */
067    public abstract void onCoordinatorActionEvent(CoordinatorActionEvent cae);
068
069    /**
070     * On bundle job transition
071     * @param bje
072     */
073    public abstract void onBundleJobEvent(BundleJobEvent bje);
074
075}