Iterator

Static diagram :

Description :

Type :

Be (Behavioral)

Intent :

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

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 (that is, to support polymorphic iteration).

Pattern's participants :

Iterator
Defines an interface for accessing and traversing elements.
ConcreteIterator
Implements the Iterator interface.
Keeps track of the current position in the traversal of the aggregate.
Aggregate
Defines an interface for creating an Iterator object.
ConcreteAggregate
Implements the Iterator creation interface to return an instance of the proper ConcreteIterator.

Problems :

1. Générer des télécommandes

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Design patterns

Iterator

Static diagram :

Description :

Pattern's participants :

Problems :