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Java > Open Source Codes > org > jpublish > page > PageManager


1 /*--
2
3  Copyright (C) 2001-2003 Aetrion LLC.
4  All rights reserved.
5  
6  Redistribution and use in source and binary forms, with or without
7  modification, are permitted provided that the following conditions
8  are met:
9  
10  1. Redistributions of source code must retain the above copyright
11     notice, this list of conditions, and the following disclaimer.
12  
13  2. Redistributions in binary form must reproduce the above copyright
14     notice, this list of conditions, and the disclaimer that follows
15     these conditions in the documentation and/or other materials
16     provided with the distribution.
17
18  3. The name "JPublish" must not be used to endorse or promote products
19     derived from this software without prior written permission. For
20     written permission, please contact info@aetrion.com.
21  
22  4. Products derived from this software may not be called "JPublish", nor
23     may "JPublish" appear in their name, without prior written permission
24     from Aetrion LLC (info@aetrion.com).
25  
26  In addition, the authors of this software request (but do not require)
27  that you include in the end-user documentation provided with the
28  redistribution and/or in the software itself an acknowledgement equivalent
29  to the following:
30      "This product includes software developed by
31       Aetrion LLC (http://www.aetrion.com/)."
32
33  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
34  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
35  OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
36  DISCLAIMED. IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT,
37  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
38  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
39  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
40  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
41  STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
42  IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
43  POSSIBILITY OF SUCH DAMAGE.
44
45  For more information on JPublish, please see <http://www.jpublish.org/>.
46  
47  */
48
49 package org.jpublish.page;
50
51 import java.io.IOException JavaDoc;
52
53 import org.jpublish.Manager;
54
55 /**
56  * The PageManager is a central access point for locating pages. Implementations of the PageManager interface will
57  * provide the page loading behavior.
58  *
59  * @author Anthony Eden
60  */
61
62 public interface PageManager extends Manager {
63
64     /**
65      * Get a PageInstance from the given path. If no page can be found then this method will throw a
66      * PageNotFoundException.
67      *
68      * @param path The page path
69      * @return The PageInstance
70      * @throws IOException
71      * @throws PageNotFoundException
72      */
73
74     public PageInstance getPage(String JavaDoc path)
75             throws IOException JavaDoc, PageNotFoundException;
76
77     /**
78      * Get the last modified time of the page with the given path. This method may return -1 if the last modified time
79      * is not known.
80      *
81      * @param path The page path
82      * @return The last modified time
83      * @throws IOException
84      */
85
86     public long getLastModified(String JavaDoc path) throws IOException JavaDoc;
87
88 }
89
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