Object-Oriented Solutions: Accounts and Currencies

This article is about a simplified version of real code running at a financial institution and how maintenance problems with this code can be avoided by using Object-Oriented Design. The purpose of the code is to represent retail money Accounts and enable transferring money, define recurring transfers and to support the usual functionality you find … Continue reading Object-Oriented Solutions: Accounts and Currencies


Evil Annotations

When Java 1.5 introduced Annotations, Enterprise Developers had high hopes that it would make their life developing EJBs and other Enterprise Artifacts much easier. See for example this contemporary article: Simplify enterprise Java development with EJB 3.0. Since then however, using Annotations the way Java Enterprise started to use them had some unforeseen consequences and … Continue reading Evil Annotations