1 /*
   2  * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 package examples;
  25 
  26 import java.io.Serializable;
  27 
  28 /**
  29  * A class with a record for a serialization proxy.
  30  */
  31 public class SerializableProxy implements Serializable {
  32     private int p;
  33     private int q;
  34 
  35     /**
  36      * The proxy.
  37      *
  38      * @param x the first item in the serialized form
  39      * @param y the second item in the serialized form
  40      *
  41      * @serial include
  42      */
  43     private record Proxy(int x, int y) { 
  44         /**
  45          * Returns a deserialized object.
  46          *
  47          * @returns the deserialized object
  48          */
  49         public SerializableProxy readResolve() { 
  50             return new SerializableProxy(x, y); 
  51         }
  52     }
  53 
  54     /**
  55      * Returns the proxy object.
  56      *
  57      * @return the proxy object
  58      */
  59     public Object writeReplace() {
  60         return new Proxy(p, q);
  61     }
  62 }