Java enums + template method design pattern

Let’s consider the following code snippets:


How often do we see much the same scenario? It is not completely wrong since there is a try to use enums so it is not entirely “string driven” programming. However there is still a space to do some refactoring.

What about doing such stuff more in the object-oriented way? Enums are very powerful Java feature but for most of the cases there are only used in the simplest possible way.


In my opinion, refactored code is clearer and more self-documenting then the original one. Generally speaking it is a Template Method design pattern applied to Java enums.

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