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.client;
020
021import java.text.MessageFormat;
022
023public interface CoordinatorWfAction{
024
025    enum NullReason{
026
027        ACTION_NULL("Could not get workflow action, no action named {0} in workflow {1}"),
028        PARENT_NULL("Could not get workflow action, workflow instance is null"),;
029
030        private String template;
031
032        NullReason(String template) {
033            this.template = template;
034        }
035
036        public String getNullReason(Object... args) {
037            return MessageFormat.format(template, args);
038        }
039
040    }
041
042    int getActionNumber();
043
044    WorkflowAction getAction();
045
046    String getNullReason();
047
048}