Iterator design pattern
E679869
The Iterator design pattern is a behavioral pattern that provides a standard way to sequentially access elements of a collection or aggregate object without exposing its underlying representation.
All labels observed (2)
| Label | Occurrences |
|---|---|
| ConcreteIterator implements traversal for a specific aggregate | 1 |
| Iterator design pattern canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7665380 — 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: Iterator design pattern Context triple: [Composite, relatedTo, Iterator design pattern]
-
A.
Loop components
Loop components are portable, real-time collaborative content blocks in Microsoft 365 that can be shared and edited across apps like Teams, Outlook, and Word.
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B.
Template Method
Template Method is a behavioral design pattern that defines the skeleton of an algorithm in a base class while allowing subclasses to override specific steps without changing the algorithm’s overall structure.
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C.
itertools
itertools is a Python standard library module that provides fast, memory-efficient tools for creating and working with iterators, especially for combinatoric and functional-style operations.
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D.
Loop 101
Loop 101 is a major freeway encircling much of the Phoenix metropolitan area, connecting numerous suburbs and serving as a key route for regional traffic.
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E.
Design Patterns: Elements of Reusable Object-Oriented Software
Design Patterns: Elements of Reusable Object-Oriented Software is a seminal software engineering book by the "Gang of Four" that catalogues foundational object-oriented design patterns widely used in software development.
- 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: Iterator design pattern Target entity description: The Iterator design pattern is a behavioral pattern that provides a standard way to sequentially access elements of a collection or aggregate object without exposing its underlying representation.
-
A.
Loop components
Loop components are portable, real-time collaborative content blocks in Microsoft 365 that can be shared and edited across apps like Teams, Outlook, and Word.
-
B.
Template Method
Template Method is a behavioral design pattern that defines the skeleton of an algorithm in a base class while allowing subclasses to override specific steps without changing the algorithm’s overall structure.
-
C.
itertools
itertools is a Python standard library module that provides fast, memory-efficient tools for creating and working with iterators, especially for combinatoric and functional-style operations.
-
D.
Loop 101
Loop 101 is a major freeway encircling much of the Phoenix metropolitan area, connecting numerous suburbs and serving as a key route for regional traffic.
-
E.
Design Patterns: Elements of Reusable Object-Oriented Software
Design Patterns: Elements of Reusable Object-Oriented Software is a seminal software engineering book by the "Gang of Four" that catalogues foundational object-oriented design patterns widely used in software development.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
behavioral design pattern
ⓘ
software design pattern ⓘ |
| alternativeName | Cursor pattern ⓘ |
| applicableWhen |
you need multiple ways to traverse a collection
ⓘ
you want to keep collection classes focused on storage rather than traversal ⓘ you want to provide a uniform interface for traversing different aggregate structures ⓘ |
| belongsTo |
Gang of Four design patterns
ⓘ
linked to:
Gang of Four design pattern
|
| canBeExtendedWith |
filtered iteration
ⓘ
lazy iteration ⓘ reverse iteration ⓘ |
| canSupport | internal iteration ⓘ |
| category | behavioral pattern ⓘ |
| consequence |
increases number of objects in the system
ⓘ
simplifies aggregate interface ⓘ supports multiple simultaneous traversals of the same aggregate ⓘ |
| decouples | collection structure from traversal algorithm ⓘ |
| definesOperation |
currentItem()
ⓘ
first() ⓘ hasNext() ⓘ next() ⓘ |
| definesRole |
Aggregate defines interface for creating an iterator object
ⓘ
ConcreteAggregate implements iterator creation for a concrete collection ⓘ ConcreteIterator implements traversal for a specific aggregate ⓘ
linked to:
Iterator design pattern
Iterator provides interface for accessing and traversing elements ⓘ |
| describedIn | Design Patterns: Elements of Reusable Object-Oriented Software ⓘ |
| encapsulates | traversal logic of a collection ⓘ |
| ensures | clients do not need to know collection’s internal data structure ⓘ |
| goal | allow clients to traverse collections without depending on their concrete classes ⓘ |
| hides | internal representation of aggregate objects ⓘ |
| participants |
Aggregate
ⓘ
ConcreteAggregate ⓘ ConcreteIterator ⓘ Iterator ⓘ
linked to:
Iterator pattern
|
| primaryIntent | provide a way to access elements of an aggregate object sequentially without exposing its underlying representation ⓘ |
| promotes |
open/closed principle for traversal strategies
ⓘ
single responsibility principle for collections ⓘ |
| relatedTo |
Composite design pattern
ⓘ
linked to:
Composite pattern
Factory Method design pattern ⓘ
linked to:
Factory Method
|
| supports |
different traversal strategies for the same aggregate
ⓘ
external iteration ⓘ polymorphic iteration over different collection types ⓘ sequential access to elements ⓘ uniform traversal over arrays, lists, trees, and other aggregates ⓘ |
| typicalMethodName |
begin()
ⓘ
end() ⓘ iterator() ⓘ |
| usedIn |
.NET collections
ⓘ
C++ Standard Template Library ⓘ
linked to:
C++ standard library
Java Collections Framework ⓘ
linked to:
Java Class Library
|
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: Iterator design pattern Description of subject: The Iterator design pattern is a behavioral pattern that provides a standard way to sequentially access elements of a collection or aggregate object without exposing its underlying representation.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
Iterator design pattern
→
definesRole
→
ConcreteIterator implements traversal for a specific aggregate
ⓘ
linked to: Iterator design pattern