Visitor Pattern Implementor

Name: Visitor Pattern Implementor
Author: BookForge

Implement the Visitor pattern to define new operations on an object structure without changing the classes of the elements it operates on. Use when you have a stable class hierarchy but frequently add new operations, when many unrelated operations need to be performed on an object structure, or when you want to accumulate state across a traversal. Includes the critical stability decision rule, double-dispatch mechanism (Accept/Visit), Iterator integration for traversal, and the encapsulation trade-off warning.

Install

1. Add marketplace

› /plugin marketplace add bookforge-ai/bookforge-skills

2. Install plugin

› /plugin install design-patterns-gof@bookforge-skills

3. Use the skill

› /visitor-pattern-implementor

CC-BY-SA · Open sourceGitHub

Source Book

Design Patterns

Erich Gamma, Richard Helm, Ralph Johnson, John Vlissides

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