AbstractDbMapper Notes

• It is expected that AbstractDbMapper is extended by a concrete mapper class that then exposes domain specific methods to the application. (e.g. fetchLatest())
• All methods in AbstractDbMapper should be protected so that the concrete mapper controls what is exposed. This is especially true of any method that takes a select object or a table name.
• The methods in AbstractDbMapper should be needed by 90% of all concrete mappers that extend this class.