# [http://xstream.codehaus.org/persistence-tutorial.html XML/Object Binding] and [http://code.google.com/p/xbird/wiki/XmlObjectBinding Object Persistence] = [http://xstream.codehaus.org/index.html XStream] + [http://code.google.com/p/xbird/ XBird] (XML database system]

# data persistence with [http://www.developer.com/xml/article.php/918111/Data-Persistence-and-Java-Data-Objects----JDO.htm JDO]

* JDBC