Static utility classes are common in libraries and in user code. For example Java Math for basic mathematical calculations or DateUtils to operate on Date/LocalDate objects. It’s not always wrong to create and use them but sometimes using utility methods are considered code smell. I’ll try to explain when and why use or not to …
In last few years “microservices” term was very popular and almost everyone wanted to migrate their systems to such architecture. But what’s wrong with monolithic applications you may ask. Actually nothing. Monolith apps are as good as microservice apps. It’s not the case what is better. I don’t want to discuss what are the benefits …
I named it command-handler pattern, but actually it’s modified command pattern. In classic command pattern, we have Command class that handles action on a given object. You can see it in Switch example. First difference is decoupling of command and action execution. It also simplifies segregating read and write queries/commands (aka. CQRS). In command handler pattern, commands …
In this article I will present simple yet effective best practice for making code more readable by changing method arguments. It’s a good practice to only pass values, that the method requires, everything else ruins readability and causes tests to be more complicated. Following this simple rule we will check how it really affects code …