001    package sale.events;
002    
003    import util.*;
004    
005    /**
006     * Convenience adapter for the FormSheetListener interface. All the methods in the interface are
007     * implemented, but they are implemented with empty method bodies. So you can create subclasses where
008     * you only override the methods in which you are interested.
009     *
010     * @author Steffen Zschaler
011     * @version 2.0 27/05/1999
012     * @since v2.0
013     */
014    public abstract class FormSheetAdapter implements FormSheetListener, SerializableListener {
015    
016        /**
017         * Event triggered whenever a new FormSheet was set on the Display.
018         *
019         * @param e the event object.
020         *
021         * @override Sometimes
022         */
023        public void formSheetSet(FormSheetEvent e) {}
024    
025        /**
026         * Event triggered whenever a FormSheet was removed from the Display.
027         *
028         * @param e the event object.
029         *
030         * @override Sometimes
031         */
032        public void formSheetRemoved(FormSheetEvent e) {}
033    }