{"id":"singleton-lazy-initialization-pattern","text":"The Singleton pattern uses lazy initialization: the unique instance is not created until the static Instance() method is first called, with a protected constructor preventing direct instantiation.","truth_value":"IN","source":"entries/2026/06/17/gof-oo-chunk-10.md","source_url":"","source_hash":"","justifications":[],"dependents":["singleton-controlled-global-access"],"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":"singleton-lazy-initialization-pattern","truth_value":"IN","reason":"premise"}]}}