This interface defines methods that an application can implement in order to receive notification from a XMLReader about notation and unparsed entity declarations in the DTD of an XML document. Notations and unparsed entities are two of the most obscure features of XML, and they (and this interface) are not frequently used. To use a DTDHandler, define a class that implements the interface, (or simply subclass the helper class org.xml.sax.helpers.DefaultHandler) and pass an instance of that class to the setDTDHandler( ) method of an XMLReader. Then, if the parser encounters any notation or unparsed entity declarations in the DTD of the document, it will invoke the notationDecl( ) or unparsedEntityDecl( ) method that you have supplied. Unparsed entities can appear later in a document as the value of an attribute, so if your application cares about them, it should somehow make a note of the entity name and system id for use later.

public interface DTDHandler {
// Public Instance Methods
     void notationDecl(String name, String publicId, String systemId) 
        throws SAXException;  
     void unparsedEntityDecl(String name, String publicId, String systemId, 
        String notationName) throws SAXException;  
}

Implementations

javax.xml.transform.sax.TransformerHandler, HandlerBase, org.xml.sax.helpers.DefaultHandler, org.xml.sax.helpers.XMLFilterImpl

Passed To

Parser.setDTDHandler( ), XMLReader.setDTDHandler( ), org.xml.sax.helpers.ParserAdapter.setDTDHandler( ), org.xml.sax.helpers.XMLFilterImpl.setDTDHandler( ), org.xml.sax.helpers.XMLReaderAdapter.setDTDHandler( )

Returned By

XMLReader.getDTDHandler( ), org.xml.sax.helpers.ParserAdapter.getDTDHandler( ), org.xml.sax.helpers.XMLFilterImpl.getDTDHandler( )