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 */
018package org.apache.oozie.event.listener;
019
020import org.apache.hadoop.conf.Configuration;
021import org.apache.oozie.event.BundleJobEvent;
022import org.apache.oozie.event.CoordinatorActionEvent;
023import org.apache.oozie.event.CoordinatorJobEvent;
024import org.apache.oozie.event.WorkflowActionEvent;
025import org.apache.oozie.event.WorkflowJobEvent;
026
027/**
028 * Event listener for Job notification events, defining methods corresponding to
029 * job status changes
030 */
031public abstract class JobEventListener {
032
033    /**
034     * Initialize the listener
035     * @param conf
036     */
037    public abstract void init(Configuration conf);
038
039    /**
040     * Destroy the listener
041     */
042    public abstract void destroy();
043
044    /**
045     * On workflow job transition
046     * @param WorkflowJobEvent
047     */
048    public abstract void onWorkflowJobEvent(WorkflowJobEvent wje);
049
050    /**
051     * On workflow action transition
052     * @param WorkflowActionEvent
053     */
054    public abstract void onWorkflowActionEvent(WorkflowActionEvent wae);
055
056    /**
057     * On coordinator job transition
058     * @param CoordinatorJobEvent
059     */
060    public abstract void onCoordinatorJobEvent(CoordinatorJobEvent cje);
061
062    /**
063     * On coordinator action transition
064     * @param CoordinatorActionEvent
065     */
066    public abstract void onCoordinatorActionEvent(CoordinatorActionEvent cae);
067
068    /**
069     * On bundle job transition
070     * @param BundleJobEvent
071     */
072    public abstract void onBundleJobEvent(BundleJobEvent bje);
073
074}