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; 019 020 021 import org.apache.oozie.util.ParamChecker; 022 023 import java.util.Arrays; 024 025 /** 026 * Workflow lite start node definition. 027 */ 028 public class StartNodeDef extends ControlNodeDef { 029 030 /** 031 * Reserved name fo the start node. <p/> It is an invalid token, it will never match an application node name. 032 */ 033 public static final String START = ":start:"; 034 035 /** 036 * Default constructor. 037 */ 038 public StartNodeDef() { 039 } 040 041 /** 042 * Create a start node definition. 043 * 044 * @param klass control node handler class. 045 * @param transitionTo transition on workflow start. 046 */ 047 public StartNodeDef(Class<? extends ControlNodeHandler> klass, String transitionTo) { 048 super(START, "", klass, Arrays.asList(ParamChecker.notEmpty(transitionTo, "transitionTo"))); 049 } 050 051 }