This example shows how to perform stream-oriented, partially in-memory XML processing using the C++/Tree mapping. With the partially in-memory parsing and serialization only a part of the object model is in memory at any given time. With this approach we can process parts of the document as they become available as well as handle documents that are too large to fit into memory. The example consists of the following files: position.xsd XML Schema which describes a simple object position vocabulary. The position is represented as a potentially large series of latitude and longitude measurements. position.xml Sample object position document. position.hxx position.cxx C++ types that represent the position vocabulary as well as parsing and serialization functions. These are generated by XSD from position.xsd. parser.hxx parser.cxx Stream-oriented DOM parser implementation that is built on top of the Xerces-C++ SAX2 parser in the progressive parsing mode. This parser allows us to parse an XML document as a series of DOM fragments. serializer.hxx serializer.cxx Stream-oriented DOM serializer implementation that allows us to serialize an XML Document as a series of object model fragments. driver.cxx Driver for the example. It first parses the input file into a series of DOM fragments which are then parsed into the object model fragments. The driver prints the information from the document as it becomes available. The driver then creates a new XML document (out.xml) by creating and serializing a series of object model fragments. To run the example simply execute: $ ./driver position.xml The serialization results are written to the out.xml file.