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Java > Open Source Codes > org > apache > lenya > workflow > WorkflowListener


1 /*
2  * Copyright 1999-2004 The Apache Software Foundation
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  *
16  */
17
18 /* $Id: WorkflowListener.java 42598 2004-03-01 16:18:28Z gregor $ */
19
20 package org.apache.lenya.workflow;
21
22
23 /**
24  * Workflow listener interface.
25  */
26 public interface WorkflowListener {
27     
28     /**
29      * This method is invoked when a transition has fired.
30      *
31      * @param instance The workflow instance.
32      * @param situation The situation before the transition has fired.
33      * @param event The event that was invoked.
34      *
35      * @throws WorkflowException if an error occured
36      */
37     void transitionFired(WorkflowInstance instance, Situation situation, Event event)
38         throws WorkflowException;
39 }
40
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