2009/05/20 - Apache Shale has been retired.

For more information, please explore the Attic.

Coverage Report - org.apache.shale.dialog.DialogListener
 
Classes in this File Line Coverage Branch Coverage Complexity
DialogListener
N/A 
N/A 
1
 
 1  
 /*
 2  
  * Licensed to the Apache Software Foundation (ASF) under one or more
 3  
  * contributor license agreements.  See the NOTICE file distributed with
 4  
  * this work for additional information regarding copyright ownership.
 5  
  * The ASF licenses this file to you under the Apache License, Version 2.0
 6  
  * (the "License"); you may not use this file except in compliance with
 7  
  * the License.  You may obtain a copy of the License at
 8  
  *
 9  
  *      http://www.apache.org/licenses/LICENSE-2.0
 10  
  *
 11  
  * Unless required by applicable law or agreed to in writing, software
 12  
  * distributed under the License is distributed on an "AS IS" BASIS,
 13  
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 14  
  * See the License for the specific language governing permissions and
 15  
  * limitations under the License.
 16  
  */
 17  
 
 18  
 package org.apache.shale.dialog;
 19  
 
 20  
 
 21  
 /**
 22  
  * <p>JavaBeans listener for a single instance of a Shale dialog.</p>
 23  
  *
 24  
  * <p><strong>IMPLEMENTATION NOTE</strong> - Implementations of this interface
 25  
  * will be stored in session scope, so they should be serializable.</p>
 26  
  *
 27  
  * @since 1.0.4
 28  
  */
 29  
 public interface DialogListener {
 30  
 
 31  
 
 32  
     //----------------------------------------------- Coarse grained callbacks
 33  
 
 34  
     /**
 35  
      * <p>Handle the starting of the dialog instance.</p>
 36  
      */
 37  
     public void onStart();
 38  
 
 39  
 
 40  
     /**
 41  
      * <p>Handle the stopping of the dialog instance.</p>
 42  
      */
 43  
     public void onStop();
 44  
 
 45  
 
 46  
     /**
 47  
      * <p>Handle an unexpected failure during the execution of this dialg
 48  
      * instance.</p>
 49  
      *
 50  
      * @param exception A potentially implementation specific exception
 51  
      *                  during the execution of this dialog instance
 52  
      */
 53  
     public void onException(Exception exception);
 54  
 
 55  
 
 56  
     //------------------------------------------------- Fine grained callbacks
 57  
 
 58  
     /**
 59  
      * <p>Handle an entry into a dialog state.</p>
 60  
      *
 61  
      * @param stateId Implementation specific identifier of the state
 62  
      *                that has been entered
 63  
      */
 64  
     public void onEntry(String stateId);
 65  
 
 66  
 
 67  
     /**
 68  
      * <p>Handle an exit from a dialog state.</p>
 69  
      *
 70  
      * @param stateId Implementation specific identifier of the state
 71  
      *                that has been exited
 72  
      */
 73  
     public void onExit(String stateId);
 74  
 
 75  
 
 76  
     /**
 77  
      * <p>Handle a transition being followed.</p>
 78  
      *
 79  
      * @param fromStateId Implementation specific identifier of the source
 80  
      *                    state for the transition that has been followed
 81  
      * @param toStateId Implementation specific identifier of the target
 82  
      *                  state for the transition that has been followed
 83  
      */
 84  
     public void onTransition(String fromStateId, String toStateId);
 85  
 
 86  
 
 87  
     //-------------------------------------------------------------- Ownership
 88  
 
 89  
     /**
 90  
      * <p>Return the {@link DialogContext} instance associated with this
 91  
      * {@link DialogListener}.</p>
 92  
      *
 93  
      * @return The {@link DialogContext} whose execution we are listening to
 94  
      */
 95  
     public DialogContext getDialogContext();
 96  
 
 97  
 
 98  
     /**
 99  
      * <p>Set the {@link DialogContext} instance associated with this
 100  
      * {@link DialogListener}.</p>
 101  
      *
 102  
      * @param dialogContext The {@link DialogContext} whose execution we
 103  
      *                      will track
 104  
      */
 105  
     public void setDialogContext(DialogContext dialogContext);
 106  
 
 107  
 
 108  
 }