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    package org.apache.oozie.workflow.lite;
019    
020    import java.util.Collections;
021    
022    /**
023     * Node definition for KILL control node.
024     */
025    public class KillNodeDef extends ControlNodeDef {
026    
027        KillNodeDef() {
028        }
029    
030        @SuppressWarnings("unchecked")
031        public KillNodeDef(String name, String message, Class<? extends ControlNodeHandler> klass) {
032            super(name, message, klass, Collections.EMPTY_LIST);
033        }
034    
035        public static class KillNodeHandler extends NodeHandler {
036    
037            public boolean enter(Context context) {
038                return true;
039            }
040    
041            public String exit(Context context) {
042                context.killJob();
043                return null;
044            }
045    
046            public void kill(Context context) {
047            }
048    
049            public void fail(Context context) {
050            }
051        }
052    
053    }