Services requests which use the HTTP HEAD method. This implementation returns basic
information regarding the specified resource.
If the specified file does not exist, a 404 (Not Found) error is sent to the client.
Parameters: request - The request being serviced. Parameters: response - The servlet response. throws: ServletException - If an application error occurs. throws: IOException - If an IO error occurs while handling the request.
Fields inherited from org.enhydra.dm.api.handler.AbstractHandler