You may also specify customized type mappings using the <mappings> element of the generated HydraExpress project file, or creating a separate HydraExpress project file containing just a <mappings> element and providing it as an argument to the code generator.

This can allow you to set up customized mappings for schema namespaces, or special character encoding conversions. For more information, see Chapter 8, “Mapping XML Schema to C++,” in the HydraExpress XML Binding Development Guide. See also Chapter 19, Internationalizing Your Services.