Refactor: Simplifying Method Calls

Overview

These 14 techniques improve method interfaces -- making them easier to understand, call correctly, and maintain. Clean method signatures are your code's API contract; unclear signatures lead to misuse and tight coupling.

When to Use

• Method name doesn't describe what it does
• 4+ parameters
• Boolean flag parameters switch behavior
• Caller extracts data just to pass as parameters
• Method does both query and command (side effects + return value)

Quick Reference