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
019
020package org.apache.oozie.command;
021
022public abstract class IgnoreTransitionXCommand<T> extends TransitionXCommand<T> {
023
024    protected T ret;
025
026    public IgnoreTransitionXCommand(String name, String type, int priority) {
027        super(name, type, priority);
028    }
029
030    @Override
031    protected T execute() throws CommandException {
032        try {
033            transitToNext();
034            ignoreChildren();
035            updateJob();
036            performWrites();
037        }
038        finally {
039            notifyParent();
040        }
041        return ret;
042    }
043
044    public abstract void ignoreChildren() throws CommandException;
045
046    @Override
047    public void transitToNext() throws CommandException{
048    }
049    @Override
050    public void notifyParent(){
051    }
052    @Override
053    public void updateJob(){
054    }
055}