Handling Declarations

• The optional DeclHandler interface covers those aspects of DTDs only a validating parser cares about:

  • Element declarations

  • Attribute declarations

  • Internal entity declarations

  • External entity declarations

• An optional extension that not all parsers (particularly non-validating parsers) support

• To set the DeclHandler for a parser, set the "http://xml.org/sax/handlers/DeclHandler" property. A SAXNotRecognizedException or SAXNotSupportedException will be thrown if the parser doesn't support DeclHandler