This interface receives notification of general document events.
This is the main interface that most SAX applications implement. If the application needs to be informed of basic parsing events, it implements this interface and registers an instance with the SAX parser using the setDocumentHandler method. The parser uses the instance to report basic document-related events like the start and end of elements and character data.
The order of events in this interface is very important, and mirrors the order of information in the document itself. For example, all of an element’s content (character data, processing instructions, and/or subelements) will appear, in order, between the startElement event and the corresponding endElement event.
Application writers who do not want to implement the entire interface can derive a class from HandlerBase, which implements the default functionality; parser writers can instantiate HandlerBase to obtain a default handler. The application can find the location of any document event using the Locator interface supplied by the Parser through the setDocumentLocator method.
This specification extends the Java org.xml.sax.DocumentHandler with the following methods:
SAXException * comment (const unicode * data);
int enableExceptions (int enable);