001    /* BackingStoreException.java - chained exception thrown when backing store
002       fails
003       Copyright (C) 2001, 2002, 2005  Free Software Foundation, Inc.
004    
005    This file is part of GNU Classpath.
006    
007    GNU Classpath is free software; you can redistribute it and/or modify
008    it under the terms of the GNU General Public License as published by
009    the Free Software Foundation; either version 2, or (at your option)
010    any later version.
011    
012    GNU Classpath is distributed in the hope that it will be useful, but
013    WITHOUT ANY WARRANTY; without even the implied warranty of
014    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
015    General Public License for more details.
016    
017    You should have received a copy of the GNU General Public License
018    along with GNU Classpath; see the file COPYING.  If not, write to the
019    Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
020    02110-1301 USA.
021    
022    Linking this library statically or dynamically with other modules is
023    making a combined work based on this library.  Thus, the terms and
024    conditions of the GNU General Public License cover the whole
025    combination.
026    
027    As a special exception, the copyright holders of this library give you
028    permission to link this library with independent modules to produce an
029    executable, regardless of the license terms of these independent
030    modules, and to copy and distribute the resulting executable under
031    terms of your choice, provided that you also meet, for each linked
032    independent module, the terms and conditions of the license of that
033    module.  An independent module is a module which is not derived from
034    or based on this library.  If you modify this library, you may extend
035    this exception to your version of the library, but you are not
036    obligated to do so.  If you do not wish to do so, delete this
037    exception statement from your version. */
038    
039    package java.util.prefs;
040    
041    import java.io.NotSerializableException;
042    import java.io.ObjectInputStream;
043    import java.io.ObjectOutputStream;
044    
045    /**
046     * Chained exception thrown when backing store fails. This exception is
047     * only thrown from methods that actually have to access the backing store,
048     * such as <code>clear(), keys(), childrenNames(), nodeExists(), removeNode(),
049     * flush(), sync(), exportNode(), exportSubTree()</code>; normal operations
050     * do not throw BackingStoreExceptions.
051     *
052     * <p>Note that although this class inherits the Serializable interface, an
053     * attempt to serialize will fail with a <code>NotSerializableException</code>.
054     *
055     * @author Mark Wielaard (mark@klomp.org)
056     * @since 1.4
057     * @status updated to 1.4
058     */
059    public class BackingStoreException extends Exception
060    {
061      static final long serialVersionUID = 859796500401108469L;
062    
063      /**
064       * Creates a new exception with a descriptive message.
065       *
066       * @param message the message
067       */
068      public BackingStoreException(String message)
069      {
070        super(message);
071      }
072    
073      /**
074       * Create a new exception with the given cause.
075       *
076       * @param cause the cause
077       */
078      public BackingStoreException(Throwable cause)
079      {
080        super(cause);
081      }
082    
083      /**
084       * This class should not be serialized.
085       *
086       * @param o the output stream
087       */
088      private void writeObject(ObjectOutputStream o) throws NotSerializableException
089      {
090        throw new NotSerializableException
091          ("java.util.prefs.BackingStoreException");
092      }
093    
094      /**
095       * This class should not be serialized.
096       *
097       * @param i the input stream
098       */
099      private void readObject(ObjectInputStream i) throws NotSerializableException
100      {
101        throw new NotSerializableException
102          ("java.util.prefs.BackingStoreException");
103      }
104    }