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Java > Open Source Codes > org > apache > tapestry > junit > mock > app > Guard


1 // Copyright 2004, 2005 The Apache Software Foundation
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14
15 package org.apache.tapestry.junit.mock.app;
16
17 import org.apache.tapestry.IRequestCycle;
18 import org.apache.tapestry.callback.ICallback;
19 import org.apache.tapestry.html.BasePage;
20
21 /**
22  * Guard page for the Protected page. Protected checks the "visited" property of this page and, if
23  * false, redirects to this page.
24  *
25  * @author Howard Lewis Ship
26  * @since 2.3
27  */
28
29 public abstract class Guard extends BasePage
30 {
31     public abstract ICallback getCallback();
32
33     public abstract void setCallback(ICallback callback);
34
35     public abstract void setVisited(boolean visited);
36
37     public abstract boolean isVisited();
38
39     public void linkClicked(IRequestCycle cycle)
40     {
41         setVisited(true);
42
43         ICallback callback = getCallback();
44
45         setCallback(null);
46
47         callback.performCallback(cycle);
48     }
49
50 }
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