This is the basic interface for resolving entities. If you create an object implementing this interface, then register the object with your Parser instance, the parser will call the method in your object to resolve all external entities. Note that HandlerBase implements this interface with the default behaviour. This is the basic interface for SAX error handlers. If you create an object that implements this interface, then register the object with your Parser, the parser will call the methods in your object to report all warnings and errors.
All methods take a SAXParseException as the only parameter.
Default base class for handlers. Rather than implementing those full interfaces, you may simply extend this class and override the methods that you need. Note that the use of this class is optional, since you are free to implement the interfaces directly if you wish. SAX parsers should also implement a zero-argument constructor. Encapsulate an XML parse error or warning.