{"id":"creational-patterns-enable-composition-reuse","text":"Creational patterns — with Factory Method as the most pervasive creational mechanism in the GoF catalog — complement composition-based reuse: composition's superiority over inheritance for flexibility benefits from the ability to vary the concrete objects in a composition, and Factory Method provides a foundational way to abstract object creation, reducing direct dependence on concrete constructors.","truth_value":"IN","source":"","source_url":"","source_hash":"","justifications":[{"type":"SL","antecedents":["factory-method-as-foundational-creational","composition-superiority-for-reuse"],"outlist":[],"label":"Composition cannot be flexible without creational abstraction; Factory Method provides that abstraction"}],"dependents":["creational-complete-lifecycle-infrastructure","creational-enables-cross-category-sharing","dual-prerequisites-enable-pattern-ecosystem"],"metadata":{"source_type":"derived","review_result":"pass","repair_action":"softened"},"created_at":"2026-06-17T17:57:39+00:00","updated_at":"2026-06-18T06:15:08+00:00","reviewed_at":"2026-06-18T06:15:08+00:00","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"creational-patterns-enable-composition-reuse","truth_value":"IN","reason":"SL justification valid","antecedents":["factory-method-as-foundational-creational","composition-superiority-for-reuse"],"label":"Composition cannot be flexible without creational abstraction; Factory Method provides that abstraction"},{"node":"factory-method-as-foundational-creational","truth_value":"IN","reason":"SL justification valid","antecedents":["abstract-factory-often-uses-factory-methods","factory-method-called-within-template-methods","iterator-factory-method-creates-appropriate-iterator"],"label":"Factory Method appears as a building block inside three other patterns"},{"node":"abstract-factory-often-uses-factory-methods","truth_value":"IN","reason":"premise"},{"node":"factory-method-called-within-template-methods","truth_value":"IN","reason":"premise"},{"node":"iterator-factory-method-creates-appropriate-iterator","truth_value":"IN","reason":"premise"},{"node":"composition-superiority-for-reuse","truth_value":"IN","reason":"SL justification valid","antecedents":["favor-composition-over-inheritance","inheritance-breaks-encapsulation","inheritance-compile-time-composition-run-time","delegation-composition-as-powerful-as-inheritance"],"label":"Four independent arguments converge on composition's superiority over inheritance"},{"node":"favor-composition-over-inheritance","truth_value":"IN","reason":"premise"},{"node":"inheritance-breaks-encapsulation","truth_value":"IN","reason":"premise"},{"node":"inheritance-compile-time-composition-run-time","truth_value":"IN","reason":"premise"},{"node":"delegation-composition-as-powerful-as-inheritance","truth_value":"IN","reason":"premise"}]}}