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Diffstat (limited to 'libjava/java/util/Observer.java')
| -rw-r--r-- | libjava/java/util/Observer.java | 23 |
1 files changed, 12 insertions, 11 deletions
diff --git a/libjava/java/util/Observer.java b/libjava/java/util/Observer.java index d18170d..a703e90 100644 --- a/libjava/java/util/Observer.java +++ b/libjava/java/util/Observer.java @@ -1,6 +1,5 @@ -/* Implemented when a class wants to be informed of changes in Observable - objects. - Copyright (C) 1998, 1999, 2001 Free Software Foundation, Inc. +/* Observer.java -- an object that will be informed of changes in an Observable + Copyright (C) 1998, 1999, 2001, 2002 Free Software Foundation, Inc. This file is part of GNU Classpath. @@ -39,21 +38,23 @@ exception statement from your version. */ package java.util; -/* Written using "Java Class Libraries", 2nd edition, ISBN 0-201-31002-3 - * "The Java Language Specification", ISBN 0-201-63451-1 - * plus online API docs for JDK 1.2 beta from http://www.javasoft.com. - * Status: Believed complete and correct - */ - /** * Interface that is implemented when a class wants to be informed of changes * in Observable objects. * - * @see java.util.Observable * @author Warren Levy <warrenl@cygnus.com> - * @date August 25, 1998. + * @see Observable + * @status updated to 1.4 */ public interface Observer { + /** + * This method is called whenever the observable object changes, and has + * called <code>notifyObservers</code>. The Observable object can pass + * arbitrary information in the second parameter. + * + * @param observable the Observable object that changed + * @param arg arbitrary information, usually relating to the change + */ public void update(Observable observable, Object arg); } |