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17 package org.apache.log4j.chainsaw.prefs;
18
19 import java.util.EventListener;
20
21 /***
22 *
23 * Components, or objects, that are interested in being notified when
24 * Settings are loaded or being saved, can implement this interface.
25 *
26 * 'Settings' are Chainsaw wide preferences, and are not specific to a particular
27 * tab identifer etc. See the correspoing ProfileListener and related classes
28 * for a discussion on profile specific events etc.
29 *
30 * The implementing class can use this event notification opportunity
31 * to load setting information stored previously, or to
32 * request that setting information be stored.
33 *
34 * NOTE: This contract does <b>_*NOT*_</b> dictate that the Thread invoking these
35 * methods will be the Swing's Event dispatching event, it could
36 * be any arbitary thread. Having said that, it COULD be the Swing's Event
37 * dispatching event, but this contract makes no guarantee.
38 *
39 * @author Paul Smith <psmith@apache.org>
40 *
41 */
42 public interface SettingsListener extends EventListener {
43
44 /***
45 * When a request to load Settings has been requested, this method
46 * will be invoked by the SettingsManager. The implementing
47 * component can query the event for settings, and modify
48 * it's internal state based on these settings.
49 *
50 * @param event
51 */
52 public void loadSettings(LoadSettingsEvent event);
53
54 public void saveSettings(SaveSettingsEvent event);
55 }