duke@0: /*
duke@0:  * Copyright 2002-2006 Sun Microsystems, Inc.  All Rights Reserved.
duke@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@0:  *
duke@0:  * This code is free software; you can redistribute it and/or modify it
duke@0:  * under the terms of the GNU General Public License version 2 only, as
duke@0:  * published by the Free Software Foundation.  Sun designates this
duke@0:  * particular file as subject to the "Classpath" exception as provided
duke@0:  * by Sun in the LICENSE file that accompanied this code.
duke@0:  *
duke@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@0:  * version 2 for more details (a copy is included in the LICENSE file that
duke@0:  * accompanied this code).
duke@0:  *
duke@0:  * You should have received a copy of the GNU General Public License version
duke@0:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@0:  *
duke@0:  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@0:  * CA 95054 USA or visit www.sun.com if you need additional information or
duke@0:  * have any questions.
duke@0:  */
duke@0: 
jtulach@1260: package sun.util.xml;
duke@0: 
duke@0: import java.util.*;
jtulach@1260: import java.util.prefs.*;
duke@0: import java.io.*;
duke@0: 
duke@0: /**
duke@0:  * XML Support for java.util.prefs. Methods to import and export preference
duke@0:  * nodes and subtrees.
duke@0:  *
duke@0:  * @author  Josh Bloch and Mark Reinhold
duke@0:  * @see     Preferences
duke@0:  * @since   1.4
duke@0:  */
jtulach@1260: public abstract class PrefsXmlSupport {
jtulach@1260:     public static PrefsXmlSupport getDefault() {
jtulach@1260:         Iterator<PrefsXmlSupport> it = ServiceLoader.load(PrefsXmlSupport.class).iterator();
jtulach@1263:         return it.hasNext() ? it.next() : new DefaultPrefsXmlSupport();
duke@0:     }
duke@0: 
jtulach@1260:     public abstract void export(OutputStream os, final Preferences p, boolean subTree)
jtulach@1260:         throws IOException, BackingStoreException;
duke@0: 
duke@0:     /**
duke@0:      * Import preferences from the specified input stream, which is assumed
duke@0:      * to contain an XML document in the format described in the Preferences
duke@0:      * spec.
duke@0:      *
duke@0:      * @throws IOException if reading from the specified output stream
duke@0:      *         results in an <tt>IOException</tt>.
duke@0:      * @throws InvalidPreferencesFormatException Data on input stream does not
duke@0:      *         constitute a valid XML document with the mandated document type.
duke@0:      */
jtulach@1260:     public abstract void importPreferences(InputStream is)
jtulach@1260:         throws IOException, InvalidPreferencesFormatException;
duke@0: 
duke@0: 
jtulach@1260:     public abstract void importMap(InputStream is, Map m)
jtulach@1260:         throws IOException, InvalidPreferencesFormatException;
duke@0: 
jtulach@1260:     public abstract void exportMap(OutputStream is, Map m)
jtulach@1260:         throws IOException, InvalidPreferencesFormatException;
duke@0: 
duke@0: }