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Java > Open Source Codes > de > nava > informa > utils > cleaner > CleanerObserverIF


1 //
2 // Informa -- RSS Library for Java
3 // Copyright (c) 2002 by Niko Schmuck
4 //
5 // Niko Schmuck
6 // http://sourceforge.net/projects/informa
7 // mailto:niko_schmuck@users.sourceforge.net
8 //
9 // This library is free software.
10 //
11 // You may redistribute it and/or modify it under the terms of the GNU
12 // Lesser General Public License as published by the Free Software Foundation.
13 //
14 // Version 2.1 of the license should be included with this distribution in
15 // the file LICENSE. If the license is not included with this distribution,
16 // you may find a copy at the FSF web site at 'www.gnu.org' or 'www.fsf.org',
17 // or you may write to the Free Software Foundation, 675 Mass Ave, Cambridge,
18 // MA 02139 USA.
19 //
20 // This library is distributed in the hope that it will be useful,
21 // but WITHOUT ANY WARRANTY; without even the implied waranty of
22 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
23 // Lesser General Public License for more details.
24 //
25 // $Id: CleanerObserverIF.java,v 1.1 2004/08/24 18:07:54 spyromus Exp $
26 //
27
28 package de.nava.informa.utils.cleaner;
29
30 import de.nava.informa.core.ItemIF;
31 import de.nava.informa.core.ChannelIF;
32
33 /**
34  * Observers receive notification events from the cleaning engine when engine
35  * finds items matching all of the Matchers' rules.
36  *
37  * @author Aleksey Gureev (spyromus@noizeramp.com)
38  */
39 public interface CleanerObserverIF {
40
41   /**
42    * Invoked when cleanup engine finds unwanted item.
43    *
44    * @param item unwanted item.
45    * @param channel channel this item resides in.
46    */
47   void unwantedItem(ItemIF item, ChannelIF channel);
48
49   /**
50    * Invoked by cleanup engine when cleaning of the channel has started.
51    *
52    * @param channel channel being cleaned.
53    */
54   void cleaningStarted(ChannelIF channel);
55
56   /**
57    * Invoked by cleanup engine when cleaning of the channel has finished.
58    *
59    * @param channel channel being cleaned.
60    */
61   void cleaningFinished(ChannelIF channel);
62 }
63
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