The Reasoning Behind AQC Class Design Choices

The Atomic Query Construction (AQC) design pattern is all about precision, clarity, and predictability. Over time, I’ve developed a consistent structure for AQC classes that may seem restrictive at first glance, but each restriction serves a practical purpose. Let’s break down why AQC classes are defined the way they are. 1. No Constructor: Avoiding Dependency Injection In many design patterns, constructors are used to inject dependencies—services, repositories, or other objects. AQC classes intentionally avoid constructors. Why? Because the AQC philosophy assumes that the underlying service or query builder never changes internally. Injecting a dependency through a constructor implies that the class can be swapped or configured differently for each instance. For AQC classes, this is unnecessary overhead. The logic is atomic, deterministic, and isolated. By not requiring a constructor, you eliminate boilerplate, reduce configuration errors, and keep the class focused purely on its quer