Decorator
E173611
The Decorator is a structural design pattern that allows behavior to be dynamically added to individual objects by wrapping them in flexible, reusable decorator classes.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Decorator pattern | 3 |
| ConcreteDecorator | 1 |
| Decorator canonical | 1 |
| Wrapper pattern | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1531321 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Decorator Context triple: [Design Patterns: Elements of Reusable Object-Oriented Software, describesPattern, Decorator]
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A.
Fitter
Fitter is the NATO reporting name for the Soviet-designed Sukhoi Su-17/20/22 family of variable-sweep wing fighter-bomber aircraft.
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B.
Gobo
Gobo is a coastal city in Japan known for its fishing industry and location in Wakayama Prefecture on the Kii Peninsula.
-
C.
PRY
PRY is the three-letter ISO 3166-1 alpha-3 country code assigned to Paraguay.
-
D.
Debub
Debub is a southern administrative region of Eritrea known for its highland landscapes, agriculture, and historical sites.
-
E.
F Reactor
F Reactor was one of the early plutonium production reactors at the Hanford Site in Washington, built during the Manhattan Project to support the U.S. nuclear weapons program.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Decorator Target entity description: The Decorator is a structural design pattern that allows behavior to be dynamically added to individual objects by wrapping them in flexible, reusable decorator classes.
-
A.
Fitter
Fitter is the NATO reporting name for the Soviet-designed Sukhoi Su-17/20/22 family of variable-sweep wing fighter-bomber aircraft.
-
B.
Gobo
Gobo is a coastal city in Japan known for its fishing industry and location in Wakayama Prefecture on the Kii Peninsula.
-
C.
PRY
PRY is the three-letter ISO 3166-1 alpha-3 country code assigned to Paraguay.
-
D.
Debub
Debub is a southern administrative region of Eritrea known for its highland landscapes, agriculture, and historical sites.
-
E.
F Reactor
F Reactor was one of the early plutonium production reactors at the Hanford Site in Washington, built during the Manhattan Project to support the U.S. nuclear weapons program.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
software design pattern
ⓘ
structural design pattern ⓘ |
| alsoKnownAs |
Wrapper pattern
ⓘ
linked to:
Decorator
|
| applicableWhen |
extending behavior of individual objects, not entire classes
ⓘ
object responsibilities should be added or removed dynamically ⓘ subclassing is impractical or leads to many subclasses ⓘ |
| authors |
Erich Gamma
ⓘ
John Vlissides ⓘ Ralph Johnson NERFINISHED ⓘ Richard Helm ⓘ |
| avoids | class explosion from excessive subclassing ⓘ |
| belongsTo | Gang of Four design patterns ⓘ |
| category | object structural pattern ⓘ |
| commonLanguageSupport |
C#
ⓘ
linked to:
C# programming language
C++ ⓘ Java ⓘ JavaScript ⓘ Python ⓘ |
| consequence |
can make debugging and configuration more complex
ⓘ
increases number of small objects in a system ⓘ preserves original object interface ⓘ |
| definesRelationship |
ConcreteDecorator adds responsibilities to Component
ⓘ
Decorator implements same interface as Component ⓘ Decorator maintains reference to a Component ⓘ |
| describedIn | Design Patterns: Elements of Reusable Object-Oriented Software ⓘ |
| differsFrom |
Adapter changes interface, Decorator preserves interface
ⓘ
Proxy controls access, Decorator adds responsibilities ⓘ |
| exampleUseCase |
adding encryption or compression to I/O streams
ⓘ
adding responsibilities to logging components ⓘ adding scrollbars to a window in GUI frameworks ⓘ adding validation or caching to service calls ⓘ |
| intent |
Attach additional responsibilities to an object dynamically
ⓘ
Provide a flexible alternative to subclassing for extending functionality ⓘ |
| keyProperty |
decorators are transparent to clients
ⓘ
decorators can be combined in different orders ⓘ multiple decorators can be stacked ⓘ |
| originYear | 1994 ⓘ |
| relatedTo |
Adapter pattern
ⓘ
linked to:
Adapter
Composite pattern ⓘ
linked to:
Composite
Proxy pattern ⓘ |
| structureElement |
Component interface
ⓘ
ConcreteComponent ⓘ
linked to:
Composite
ConcreteDecorator ⓘ
linked to:
Decorator
Decorator abstract class ⓘ |
| supports |
open-closed principle
ⓘ
runtime behavior extension ⓘ single responsibility principle ⓘ |
| typicalOperation |
add pre-processing or post-processing around forwarded calls
ⓘ
forward requests to wrapped component ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Decorator Description of subject: The Decorator is a structural design pattern that allows behavior to be dynamically added to individual objects by wrapping them in flexible, reusable decorator classes.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Decorator
linked to: Decorator
linked to: Decorator