gistfile1.txt

import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;



/**
 * Simplifies the DocumentListener interface by having all three
 * interface methods delegate to a single method.
 *
 * To use this abstract class, subclass it and implement the abstract
 * method handleDocumentEvent().
 */
public abstract class SimpleDocumentListener implements DocumentListener {


    /**
     * Implement this method when subclassing this class.
     * It will be called whenever a DocumentEvent occurs.
     */
    abstract public void handleDocumentEvent(DocumentEvent event);


    public void changedUpdate(DocumentEvent event) {
        handleDocumentEvent(event);
    }


    public void insertUpdate(DocumentEvent event) {
        handleDocumentEvent(event);
    }


    public void removeUpdate(DocumentEvent event) {
        handleDocumentEvent(event);
    }
}