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Java > Open Source Codes > org > logicalcobwebs > proxool > util > ListenerContainerIF


1 /*
2  * This software is released under a licence similar to the Apache Software Licence.
3  * See org.logicalcobwebs.proxool.package.html for details.
4  * The latest version is available at http://proxool.sourceforge.net
5  */
6 package org.logicalcobwebs.proxool.util;
7
8 /**
9  * A container for event listeners. Implementations should cater to only one type of listeners.
10  * @version $Revision: 1.2 $, $Date: 2003/03/03 11:12:02 $
11  * @author Christian Nedregaard (christian_nedregaard@email.com)
12  * @author $Author: billhorsman $ (current maintainer)
13  * @since Proxool 0.7
14  */
15 public interface ListenerContainerIF {
16     /**
17      * Add a listener to this container.
18      * @param listener the listener to add.
19      */
20     void addListener(Object JavaDoc listener);
21
22     /**
23      * Remove a listener from this container.
24      * @param listener the listener to be removed.
25      * @return wether the listnener was found and removed or not.
26      */
27     boolean removeListener(Object JavaDoc listener);
28
29     /**
30      * Get wether this container is empty or not.
31      * @return wether this container is empty or not.
32      */
33     boolean isEmpty() ;
34 }
35
36 /*
37  Revision history:
38  $Log: ListenerContainerIF.java,v $
39  Revision 1.2 2003/03/03 11:12:02 billhorsman
40  fixed licence
41
42  Revision 1.1 2003/02/07 01:46:31 chr32
43  Initial revition.
44
45 */
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