What is the Observer Pattern? The Observer Pattern is a design pattern that allows any number of objects to observe state of a single object and be informed of any changes. The single object is typically described as the subject where the objects interested in changes of the subject are known as observers. The observers … [Read more…]
One of the design patterns I have used often in my career is the Strategy Pattern. This is a very powerful pattern. I like the definition from my favorite patterns book, “Head First Design Patterns: A Brain-Friendly Guide“ The Strategy Pattern defines a family of algorithms, encapsulates each one, and makes them interchangeable. Strategy lets … [Read more…]
The Private Implementation Design Pattern (PImpl) is a nice way to hide the internals of a class from other classes that would depend on it otherwise. The advantage of doing so is that it simplifies the header dependency tree which will result in faster build times. For larger systems and/or slow build servers, this may … [Read more…]