The REF kit includes the source code for the following formatters:
XmlFormatter. Formats audit events as XML strings.
UlfFormatter. Formats audit events according to the Universal Logging Format (ULF). The Sun Application Server uses this format.
Formatters must implement the AuditRecordFormatter interface. In addition, formatters must have a no-arg constructor. Refer to the Javadoc included in the REF kit for details.