Hands-On High Performance with Spring 5

Code tangling

Code tangling means mixing crosscutting concerns and business logic, which in turn leads to tight coupling. Let's look at the following diagram to understand code tangling:

Code tangling

The preceding diagram illustrates how we mix transactions and security code along with our business logic in our service implementation. With such implementation, code reusability is reduced, maintenance is degraded, and the single responsibility principle is violated.