/*
Copyright 2008-2010 Gephi
Authors : Mathieu Bastian <mathieu.bastian@gephi.org>
Website : http://www.gephi.org
This file is part of Gephi.
DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
Copyright 2011 Gephi Consortium. All rights reserved.
The contents of this file are subject to the terms of either the GNU
General Public License Version 3 only ("GPL") or the Common
Development and Distribution License("CDDL") (collectively, the
"License"). You may not use this file except in compliance with the
License. You can obtain a copy of the License at
http://gephi.org/about/legal/license-notice/
or /cddl-1.0.txt and /gpl-3.0.txt. See the License for the
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If you wish your version of this file to be governed by only the CDDL
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"[Contributor] elects to include this software in this distribution
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Contributor(s):
Portions Copyrighted 2011 Gephi Consortium.
*/
package org.gephi.project.spi;
import javax.xml.stream.XMLStreamReader;
import javax.xml.stream.XMLStreamWriter;
import org.gephi.project.api.Workspace;
/**
* Interface modules implement to notify the system they can read/write part
* of the .gephi project file to serialize states and data.
* <h3>How saving a project works</h3>
* <ol><li>The saving task is looking for all implementations of this interface and
* asks to return an XML element that represents data for each workspace.</li>
* <li>All of these elements are written in the .gephi project file.</li></ol>
* <h3>How loading a project works</h3>
* <ol><li>The loading task is looking for all implementations of this interface and
* asks for the identifier returned by <code>getIdentifier()</code>.</li>
* <li>When traversing the gephi project XML document it tries to match markups with
* identifiers. When match, call this provider <code>readXML()</code> method
* with the XML element.</li></ol>
* Thus this interface allows any module to serialize and deserialize its data
* to gephi project files.
*
* @author Mathieu Bastian
* @see Workspace
*/
public interface WorkspacePersistenceProvider {
public void writeXML(XMLStreamWriter writer, Workspace workspace);
public void readXML(XMLStreamReader reader, Workspace workspace);
public String getIdentifier();
}