{"id":"gof-visitor-intent-new-ops-without-changing-elements","text":"The Visitor pattern represents an operation to be performed on elements of an object structure, letting you define a new operation without changing the classes of the elements on which it operates.","truth_value":"IN","source":"entries/2026/06/17/gof-oo-chunk-21.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{"last_premise_reviewed":"2026-06-17T18:19:22","premise_review_result":"pass"},"created_at":"2026-06-17T17:04:08+00:00","updated_at":"2026-06-17T17:04:08+00:00","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"gof-visitor-intent-new-ops-without-changing-elements","truth_value":"IN","reason":"premise"}]}}