Entity-States

Today, I would like to discuss domain entity states. Recently, I came across a video and an article on the blog of an interesting software developer. In this article, he discusses exactly what I covered in my previous post regarding the separation of an entity and its state. Although phrased differently, he presents the same arguments for separation. I would like to elaborate on states and their storage. As noted earlier, saving entities essentially means saving their states. Generally, it is inaccurate to speak of saving entities, as an entity represents behavior stored in your application code, not the database. This leads to confusion with ORMs, particularly Entity Framework, which attempt to implicitly extract the entity’s state for persistence, causing difficulties in non-trivial cases. It is often more convenient to explicitly define the entity’s state as a separate class. ...