Hands-On Software Engineering with Python

BaseOrder

The process of creating pretty much any dumb data object class, or even mostly dumb ones, is very similar no matter what those classes represent, at least so long as whatever data structure rules are in play hold true across the entire scope of those efforts. As more such data oriented classes are created, fewer new approaches to specific needs will be needed until eventually there will be a concise set of approaches for implementing various properties of all the various types and value constraints needed.

The BaseOrder class, shown here with BaseProduct, is a good example of that effect, at least at first glance:

The list of