2 * jSite2 - NodeListener.java -
3 * Copyright © 2008 David Roden
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 package net.pterodactylus.jsite.core;
22 import java.util.EventListener;
25 * Interface for listeners that want to be notified about node events.
27 * @author David ‘Bombe’ Roden <bombe@freenetproject.org>
30 public interface NodeListener extends EventListener {
33 * Notifies a listener that a node was added.
36 * The node that was added
38 public void nodeAdded(Node node);
41 * Notifies a listener that a node was removed.
44 * The node that was removed
46 public void nodeRemoved(Node node);
49 * Notifies a listener that a connection to the given node was established.
52 * The node that is now connected
54 public void nodeConnected(Node node);
57 * Notifies a listener that a connection to a node has failed.
60 * The node that could not be connected
62 * The cause of the failure
64 public void nodeConnectionFailed(Node node, Throwable cause);
67 * Notifies a listener that a connection to the given node was severed. If
68 * the listener needs the high-level client associated with the node for
69 * anything else (like deregistering as listener from it) it should retrieve
70 * the high-level client using {@link NodeManager#getHighLevelClient(Node)}
71 * before this method returns!
74 * The node that is now disconnected
76 * The exception that caused the disconnect, or <code>null</code>
77 * if there was no exception
79 public void nodeDisconnected(Node node, Throwable throwable);