1 /**
2 * Copyright 2006 Matthew Purland (m.purland@gmail.com)
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 package net.sf.mud4j.util;
18
19
20 /**
21 * Observer interface to update observer objects of notifications.
22 *
23 * @author Matthew Purland
24 *
25 */
26 public interface Observer {
27
28 /**
29 * Update and notify observer object.
30 *
31 * @param observable
32 * @param arg
33 */
34 public void update(Observable observable, Object arg);
35 }