pattern-visitor

What problem does it solve?

The Visitor pattern decouples operations from a stable class hierarchy so you can add behaviors without touching each entity or sprinkling type checks.

Core Features & Use Cases

• Double Dispatch: Each element accepts a visitor which then runs the subtype-specific logic, keeping behavior centralized.
• Operation Expansion: New visitors encapsulate tasks like reporting, exporting, or analytics without changing existing domain classes.
• Use Case: When generating different formats of member reports for clubs, let the visitor visit each entity type and emit the correct output.

Quick Start

Use the visitor pattern to add a new operation across your entity types without modifying their classes.