Adding a Namespace to a Root Element

HydraExpress Components : XML Binding Development Guide : PART III Advanced Topics : Mapping XML Schema to C++ : Names and Identifiers : Namespaces : Adding a Namespace to a Root Element

You can add a namespace to the root element without adding it to any children elements. To do so, use the addNamespaceDecl() function on rwsf::XmlStringWriter.

For example, the code below adds a namespace to the root element of myDocument:

#include <rwsf/core/XmlWriter.h> //1

#include <rwsf/core/XmlName.h>

#include <rwsf/core/XmlStringWriter.h>

#include <rwsf/core/XmlNamespace.h>

XmlStringWriter marshalWriter; //2

XmlNamespace qbNamespace("qb", "http://www.roguewave.com/Schema/Project"); //3

marshalWriter.addNamespaceDecl(qbNamespace); //4

myDocument.marshal( marshalWriter); //5

std::cout << "Marshal: " << marshalWriter.getString() << std::endl; //6

//1 Necessary includes.

//2 Creates a writer to marshal your object.

//3 Set the namespace with “qb” as the prefix and http://www.roguewave.com/Schema/Project as the URI.

//4 Invokes addNamespaceDecl() with the provided namespace.

//5 Marshals the object.

//6 Prints to standard out the marshaled XML document.

Once marshaled, the XML document contains the root namespace:

<?xml version="1.0" encoding="utf-8"?>

<my Document xmlns="http://www.roguewave.com/XMLSchema"

xmlns:qb="http://www.roguewave.com/Schema/Project">

...

</myDocument>