NOTATIONValidator defines the interface that data type validators must obey.
These validators can be supplied by the application writer and may be useful as
standalone code as well as plugins to the validator architecture.
author: Elena Litani author: Jeffrey Rodriguez- author: Mark Swinkles - List Validation refactoring version: $Id: NOTATIONDatatypeValidator.java,v 1.11 2001/05/31 21:13:10 neilg Exp $