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Java > Open Source Codes > org > apache > beehive > netui > pageflow > NoPreviousPageException


1 /*
2  * Copyright 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  * $Header:$
17  */
18 package org.apache.beehive.netui.pageflow;
19
20 import org.apache.beehive.netui.pageflow.internal.ReturnToException;
21
22
23 /**
24  * Exception that occurs when the
25  * <code>navigateTo={@link org.apache.beehive.netui.pageflow.annotations.Jpf.NavigateTo#previousPage previousPage}</code>
26  * or
27  * <code>navigateTo={@link org.apache.beehive.netui.pageflow.annotations.Jpf.NavigateTo#currentPage currentPage}</code>
28  * attribute is used on a {@link org.apache.beehive.netui.pageflow.annotations.Jpf.Forward &#64;Jpf.Forward}, a
29  * {@link org.apache.beehive.netui.pageflow.annotations.Jpf.SimpleAction &#64;Jpf.SimpleAction}, or a
30  * {@link org.apache.beehive.netui.pageflow.annotations.Jpf.ConditionalForward &#64;Jpf.ConditionalForward},
31  * but there is no previously-shown page in the current page flow.
32  */
33 public class NoPreviousPageException extends ReturnToException
34 {
35     public NoPreviousPageException( String JavaDoc actionName, Forward fwd, FlowController fc )
36     {
37         super( actionName, fwd, fc );
38     }
39
40     protected String JavaDoc[] getMessageParts()
41     {
42         return new String JavaDoc[]{ "No previous page for return-to=\"", "\" on action ", " in page flow ", "." };
43     }
44 }
45
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