add namespace to java dom attribute

Question

I am trying to create an attribute with a namespace prefix. The following code does not seem to work:

Element newData = docFromXML.createElement("Data");
Attr typeAttr = docFromXML.createAttributeNS(namespaceContext.getNamespaceURI("ss"), "type");
typeAttr.setValue("String");
newData.setAttributeNode(typeAttr);

I expect the following:

<Data ss:type="String"></Data>

But the following is produced:

<Data type="String"></Data>

How do I explicitely add the namespace prefix "ss". The getNamespaceURI function returns the URL for the ss prefix in the DOM.

Answer 1

The following works:

Attr typeAttr = docFromXML.createAttribute("ss:type");

It generates:

<Data ss:type="String"></Data>