/*
 * Copyright 2003 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */

/*
 * @(#)RowSetListener.java	1.2 03/10/21
 */

package javax.sql;

/**
 * An interface that must be implemented by a 
 * component that wants to be notified when a significant 
 * event happens in the life of a <code>RowSet</code> object.
 * A component becomes a listener by being registered with a
 * <code>RowSet</code> object via the method <code>RowSet.addRowSetListener</code>.
 * How a registered component implements this interface determines what it does
 * when it is notified of an event.
 *
 * @since 1.4
 */

public interface RowSetListener extends java.util.EventListener {

  /**
   * Notifies registered listeners that a <code>RowSet</code> object 
   * in the given <code>RowSetEvent</code> object has changed its entire contents.
   * <P>
   * The source of the event can be retrieved with the method 
   * <code>event.getSource</code>.
   *
   * @param event a <code>RowSetEvent</code> object that contains 
   *         the <code>RowSet</code> object that is the source of the event
   */
  void rowSetChanged(RowSetEvent event);

  /**
   * Notifies registered listeners that a <code>RowSet</code> object 
   * has had a change in one of its rows.
   * <P>
   * The source of the event can be retrieved with the method 
   * <code>event.getSource</code>.
   *
   * @param event a <code>RowSetEvent</code> object that contains 
   *         the <code>RowSet</code> object that is the source of the event
   */
  void rowChanged(RowSetEvent event);

  /**
   * Notifies registered listeners that a <code>RowSet</code> object's
   * cursor has moved. 
   * <P>
   * The source of the event can be retrieved with the method 
   * <code>event.getSource</code>.
   *
   * @param event a <code>RowSetEvent</code> object that contains 
   *         the <code>RowSet</code> object that is the source of the event
   */
  void cursorMoved(RowSetEvent event);
}
