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Java > Open Source Codes > org > springframework > webflow > conversation > NoSuchConversationException


1 /*
2  * Copyright 2002-2006 the original author or authors.
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 package org.springframework.webflow.conversation;
17
18 /**
19  * Thrown when no logical conversation exists with the specified
20  * <code>conversationId</code>. This might occur if the conversation ended,
21  * expired, or was otherwise invalidated, but a client view still references it.
22  *
23  * @author Keith Donald
24  */
25 public class NoSuchConversationException extends ConversationException {
26
27     /**
28      * The unique conversation identifier that was invalid.
29      */
30     private ConversationId conversationId;
31
32     /**
33      * Create a new conversation lookup exception.
34      * @param conversationId the conversation id
35      */
36     public NoSuchConversationException(ConversationId conversationId) {
37         super("No conversation could be found with id '" + conversationId
38                 + "' -- perhaps this conversation has ended? ");
39         this.conversationId = conversationId;
40     }
41
42     /**
43      * Returns the conversation id that was not found.
44      */
45     public ConversationId getConversationId() {
46         return conversationId;
47     }
48 }
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