Builder Design Pattern - Simplified

Short summary

Avoid 'monster constructors' by separating construction from validation. A real-world manuscript submission example shows why constructors with dozens of parameters fail, and how the Builder pattern solves the problem. Key principle: maintain single responsibility and never allow invalid objects to exist mid-construction.

• •Constructors with many positional arguments become unmaintainable and error-prone
• •Named parameters with defaults lose mandatory field enforcement
• •Validation in constructors violates single responsibility principle
• •Builder pattern separates construction concerns from validation logic

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