An interface of the visitor design pattern which defines the visit operations for
each concrete visitor (toXMLString, digest, ...) that can be performed on the DOM- and XML4J-defined
Nodes as the document object tree is traversed.
Creates a formatted string representation of the start of the specified element Node
and its associated attributes in XML format, and directs it to the print writer.
Creates a formatted string representation of the start of the specified element Node
and its associated attributes, and directs it to the print writer.