pageeventlistener.java

swing编写的库存管理程序。毕业设计类

/**
 * ========================================
 * JFreeReport : a free Java report library
 * ========================================
 *
 * Project Info:  http://www.jfree.org/jfreereport/index.html
 * Project Lead:  Thomas Morgner;
 *
 * (C) Copyright 2000-2003, by Simba Management Limited and Contributors.
 *
 * This library is free software; you can redistribute it and/or modify it under the terms
 * of the GNU Lesser General Public License as published by the Free Software Foundation;
 * either version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License along with this
 * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 * ------------------------------
 * PageEventListener.java
 * ------------------------------
 * (C)opyright 2003, by Thomas Morgner and Contributors.
 *
 * Original Author:  Thomas Morgner;
 * Contributor(s):   David Gilbert (for Simba Management Limited);
 *
 * $Id: PageEventListener.java,v 1.2 2003/08/24 15:13:22 taqua Exp $
 *
 * Changes
 * -------------------------
 * 13.06.2003 : Initial version
 *
 */

package org.jfree.report.event;

import java.util.EventListener;

/**
 * The PageEventListener gets informed of PageEvents.
 * <p>
 * This is an extracted interface of the original ReportEventListener.
 * As page events are only fired by some (page sensitive) report processors,
 * there is no need to support page events in the ReportEventListener interface.
 * <p>
 * Functions that should be informed of page events should implement this
 * interface.
 * <p>
 * Information: The pageCanceled method is called, if a empty page was created
 * and was removed from the report afterwards.
 *
 * @author Thomas Morgner
 */
public interface PageEventListener extends EventListener
{

  /**
   * Receives notification that a new page is being started.
   *
   * @param event The event.
   */
  public void pageStarted(ReportEvent event);

  /**
   * Receives notification that a page is completed.
   *
   * @param event The event.
   */
  public void pageFinished(ReportEvent event);

  /**
   * Receives notification that a page was canceled by the ReportProcessor.
   * This method is called, when a page was removed from the report after
   * it was generated.
   *
   * @param event The event.
   */
  public void pageCanceled(ReportEvent event);
}