I’ve read way too many blog posts about inheritance versus composition. All of them revolving around the is-a versus has-a relationship. If that subtlety has left you scratching your head, here’s a real life example.
One of my first problems to solve at LendingHome was how to programmatically create reports for our investors. These reports would be used by investors to track a loan’s payment history, view loan information, and project loan performance across their portfolio. In total, I had three reports to create. All of them needed to be in CSV file format because, you know … finance folks love their excel.
