{"id":"iterator-separates-traversal-from-aggregate","text":"The Iterator pattern extracts the responsibility for access and traversal out of the aggregate object and into a separate iterator object, supporting multiple concurrent traversals and polymorphic iteration over different aggregate structures.","truth_value":"IN","source":"entries/2026/06/17/gof-oo-chunk-17.md","source_url":"","source_hash":"","justifications":[],"dependents":["composite-iterator-visitor-recursive-triad","visitor-heterogeneous-advantage-encapsulation-contingent","visitor-heterogeneous-traversal-generalizes-iterator-abstraction"],"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":"iterator-separates-traversal-from-aggregate","truth_value":"IN","reason":"premise"}]}}