001 /* 002 * Copyright 1999-2001,2004 The Apache Software Foundation. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017 package org.apache.commons.workflow; 018 019 020 /** 021 * <p>An <strong>Activity</strong> represents an ordered sequence of Steps 022 * that comprise the executable actions necessary to accomplish a business 023 * task. The dynamic execution of the Steps owned by this Activity happens 024 * within the <code>execute()</code> method of a <code>Context</code> that 025 * is utilizing this <code>Activity</code> definition.</p> 026 * 027 * @version $Revision: 155475 $ $Date: 2005-02-26 13:31:11 +0000 (Sat, 26 Feb 2005) $ 028 * @author Craig R. McClanahan 029 */ 030 031 public interface Activity extends Owner { 032 033 034 // ------------------------------------------------------------- Properties 035 036 037 /** 038 * Return the unique identifier (within this Activity) of this Step. 039 */ 040 public String getId(); 041 042 043 /** 044 * Set the unique identifier (within this Activity) of this Step. 045 * 046 * @param id The new unique identifier 047 */ 048 public void setId(String id); 049 050 051 // --------------------------------------------------------- Public Methods 052 053 054 }