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35 lines (26 loc) · 994 Bytes
layout pattern
title Iterator
folder iterator
permalink /patterns/iterator/
categories Behavioral
tags
Gang of Four

Also known as

Cursor

Intent

Provide a way to access the elements of an aggregate object sequentially without exposing its underlying representation.

Class diagram

alt text

Applicability

Use the Iterator pattern

  • to access an aggregate object's contents without exposing its internal representation
  • to support multiple traversals of aggregate objects
  • to provide a uniform interface for traversing different aggregate structures

Real world examples

Credits

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