{"id":"decorator-forwarding-default-enables-composition-scaling","text":"Decorator's base class forwarding default (every operation delegates to the wrapped component unless overridden) is the engineering mechanism that enables composition-based scaling: without forwarding defaults, each decorator would need to reimplement every component operation, making the class count grow with operations × decorators rather than additively — the forwarding default is what converts Decorator's recursive wrapping from theoretically elegant to practically scalable.","truth_value":"IN","source":"","source_url":"","source_hash":"","justifications":[{"type":"SL","antecedents":["decorator-forwards-to-component-by-default","decorator-proves-composition-scalability"],"outlist":[],"label":"Forwarding defaults are the mechanism that makes Decorator's theoretical scalability practically achievable"}],"dependents":["decorator-triply-characterized-composition-mechanism"],"metadata":{"source_type":"derived","review_result":"invalid"},"created_at":"2026-06-18T01:54:09+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":"decorator-forwarding-default-enables-composition-scaling","truth_value":"IN","reason":"SL justification valid","antecedents":["decorator-forwards-to-component-by-default","decorator-proves-composition-scalability"],"label":"Forwarding defaults are the mechanism that makes Decorator's theoretical scalability practically achievable"},{"node":"decorator-forwards-to-component-by-default","truth_value":"IN","reason":"premise"},{"node":"decorator-proves-composition-scalability","truth_value":"IN","reason":"SL justification valid","antecedents":["decorator-avoids-inheritance-explosion","composition-superiority-for-reuse"],"label":"Decorator's avoidance of class explosion quantifies composition's advantage as exponential, not just qualitative"},{"node":"decorator-avoids-inheritance-explosion","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"}]}}