This covers the basics of writing a domain object. The base class to use
the getters/setters, the validate and update methods. It also covers using the writing and using the
meta data class, as well as setting up the JDBCEngine mapping file.
This covers how to add a non-persistent (non-databse) field
to a domain object. This field could be a calculated field that may use other fields on
the domain object when its getter or updater method is called.
There are currently four triggers (preAdd, preUpdate, preDelete and postLoad)
that can be used as additional hook in points for domain objects as they are being created / persisted.
This document covers how they work, and how you might use them in your application.