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- /*
- Copyright (c) Xerox Corporation 1998-2002. All rights reserved.
-
- Use and copying of this software and preparation of derivative works based
- upon this software are permitted. Any distribution of this software or
- derivative works must comply with all applicable United States export control
- laws.
-
- This software is made available AS IS, and Xerox Corporation makes no warranty
- about the software, its performance or its conformity to any specification.
- */
-
- package observer;
- import java.util.Vector;
-
- interface Subject {
- void addObserver(Observer obs);
- void removeObserver(Observer obs);
- Vector getObservers();
- Object getData();
- }
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