001/* ObjectInputValidation.java -- Validate an object 002 Copyright (C) 1998, 2003 Free Software Foundation, Inc. 003 004This file is part of GNU Classpath. 005 006GNU Classpath is free software; you can redistribute it and/or modify 007it under the terms of the GNU General Public License as published by 008the Free Software Foundation; either version 2, or (at your option) 009any later version. 010 011GNU Classpath is distributed in the hope that it will be useful, but 012WITHOUT ANY WARRANTY; without even the implied warranty of 013MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 014General Public License for more details. 015 016You should have received a copy of the GNU General Public License 017along with GNU Classpath; see the file COPYING. If not, write to the 018Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 01902110-1301 USA. 020 021Linking this library statically or dynamically with other modules is 022making a combined work based on this library. Thus, the terms and 023conditions of the GNU General Public License cover the whole 024combination. 025 026As a special exception, the copyright holders of this library give you 027permission to link this library with independent modules to produce an 028executable, regardless of the license terms of these independent 029modules, and to copy and distribute the resulting executable under 030terms of your choice, provided that you also meet, for each linked 031independent module, the terms and conditions of the license of that 032module. An independent module is a module which is not derived from 033or based on this library. If you modify this library, you may extend 034this exception to your version of the library, but you are not 035obligated to do so. If you do not wish to do so, delete this 036exception statement from your version. */ 037 038 039package java.io; 040 041/** 042 * This class allows an object to validate that it is valid after 043 * deserialization has run completely for it and all dependent objects. 044 * This allows an object to determine if it is invalid even if all 045 * state data was correctly deserialized from the stream. It can also 046 * be used to perform re-initialization type activities on an object 047 * after it has been completely deserialized. 048 * 049 * Since this method functions as a type of callback, it must be 050 * registered through <code>ObjectInputStream.registerValidation</code> 051 * in order to be invoked. This is typically done in the 052 * <code>readObject</code> method. 053 * 054 * @author Aaron M. Renn (arenn@urbanophile.com) 055 * 056 * @see ObjectInputStream#registerValidation 057 */ 058public interface ObjectInputValidation 059{ 060 /** 061 * This method is called to validate an object after serialization 062 * is complete. If the object is invalid an exception is thrown. 063 * 064 * @exception InvalidObjectException If the object is invalid 065 */ 066 void validateObject() throws InvalidObjectException; 067}