void function ( ) { }
receive notification of the beginning of the document . by default , do nothing . application writers may override this method in a subclass to take specific actions at the beginning of a document such as allocating the root node of a tree or creating an output file . concode_field_sep PlaceHolder placeHolder concode_field_sep void startElement concode_elem_sep void fatalError concode_elem_sep InputSource resolveEntity concode_elem_sep void error concode_elem_sep void endDocument concode_elem_sep void notationDecl concode_elem_sep void characters concode_elem_sep void endElement concode_elem_sep void unparsedEntityDecl concode_elem_sep void warning concode_elem_sep void setDocumentLocator concode_elem_sep void ignorableWhitespace concode_elem_sep void processingInstruction