/interpreter/tags/at_build150307/src/edu/vub/at/actors/net/DiscoveryListener.java

 1/**
 2 * AmbientTalk/2 Project
 3 * DiscoveryListener.java created on 22-feb-2007 at 21:23:01
 4 * (c) Programming Technology Lab, 2006 - 2007
 5 * Authors: Tom Van Cutsem & Stijn Mostinckx
 6 * 
 7 * Permission is hereby granted, free of charge, to any person
 8 * obtaining a copy of this software and associated documentation
 9 * files (the "Software"), to deal in the Software without
10 * restriction, including without limitation the rights to use,
11 * copy, modify, merge, publish, distribute, sublicense, and/or
12 * sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following
14 * conditions:
15 *
16 * The above copyright notice and this permission notice shall be
17 * included in all copies or substantial portions of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
20 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
21 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
22 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
23 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
24 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
25 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
26 * OTHER DEALINGS IN THE SOFTWARE.
27 */
28package edu.vub.at.actors.net;
29
30import org.jgroups.Address;
31
32/**
33 * An object that implements this interface can act as a MembershipNotifier's discovery
34 * listener, which means it is kept up to date of the connection and disconnection of
35 * nearby virtual machines. Note that both methods are invoked by JGroups threads and
36 * that control should be transferred as quickly as possible to an event loop thread.
37 * 
38 * @author tvcutsem
39 */
40public interface DiscoveryListener {
41	
42	public void memberJoined(Address virtualMachine);
43	
44	public void memberLeft(Address virtualMachine);
45}