Creational pattern

A creational pattern is a software design pattern for creating objects in a manner suitable to a particular situation. As object creation that is otherwise available (i.e. via the programming language) can sometimes result in design limitations, a custom mechanism for creation can provide for better design. A creational pattern aims to separate a system from how its objects are created, composed, and represented. They increase the system's flexibility in terms of the what, who, how, and when of object creation.

A creational pattern encapsulates two main aspects. One is encapsulating knowledge about which concrete classes the system uses. Another is hiding how instances of these concrete classes are created and combined.

Creational design patterns are categorized into object-creational patterns and class-creational patterns. Object-creational patterns defer part of its object creation to another object, while class-creational patterns defer its object creation to subclasses.

This article is issued from Wikipedia. The text is available under Creative Commons Attribution-Share Alike 4.0 unless otherwise noted. Additional terms may apply for the media files.