persistent.java

sifi-0.1.6.tar.gz 出自http://www.ifi.unizh.ch/ikm/SINUS/firewall/ 一个linux的防火墙工具。

/*
 * Gary Cornell and Cay S. Horstmann, Core Java (Book/CD-ROM)
 * Published By SunSoft Press/Prentice-Hall
 * Copyright (C) 1996 Sun Microsystems Inc.
 * All Rights Reserved. ISBN 0-13-565755-5
 *
 * Permission to use, copy, modify, and distribute this 
 * software and its documentation for NON-COMMERCIAL purposes
 * and without fee is hereby granted provided that this 
 * copyright notice appears in all copies. 
 * 
 * THE AUTHORS AND PUBLISHER MAKE NO REPRESENTATIONS OR 
 * WARRANTIES ABOUT THE SUITABILITY OF THE SOFTWARE, EITHER 
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE 
 * IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A 
 * PARTICULAR PURPOSE, OR NON-INFRINGEMENT. THE AUTHORS
 * AND PUBLISHER SHALL NOT BE LIABLE FOR ANY DAMAGES SUFFERED 
 * BY LICENSEE AS A RESULT OF USING, MODIFYING OR DISTRIBUTING 
 * THIS SOFTWARE OR ITS DERIVATIVES.
 */
 
/**
 * @version 1.00 07 Feb 1996 
 * @author Cay Horstmann, modified by Roland E. Schmid
 */

package sfclasses;

import java.io.*;

/**
 * A class must implement the Persistent interface for its objects
 * to be storable. When saving an object, the object's write method
 * is called and when loading an object, the object's read method 
 * is called.
 * @see PersistentInputStream
 * @see PersistentOutputStream
 */

public abstract interface Persistent
{  
   /**
    * The implementation of the write() method must write all data
    * that is part of the object's persistent state to the stream
    * given as parameter. The methods provided by PersistentOutputStream
    * must be used to write the data.
    * @see PersistentOutputStream
    */
   public void write(PersistentOutputStream os);

   /**
    * The implementation of the read() method must restore the data
    * in the order written by the write() method before. The methods
    * provided by PersistentInputStream must be used to read the data.
    * @see PersistentInputStream
    */
   public void read(PersistentInputStream is) 
      throws java.io.IOException;
}