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Factory (software concept): Computer Programming, Factory Method Pattern, Abstract Factory Pattern - Couverture souple

 
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Synopsis

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. In object-oriented computer programming, a factory is an object for creating other objects. It is an abstraction of a constructor, and can be used to implement various allocation schemes. For example, using this definition, singletons implemented by the singleton pattern are formal factories. A factory object typically has a method for every kind of object it is capable of creating. These methods optionally accept parameters defining how the object is created, and then return the created object. Factory objects are used in situations where getting hold of an object of a particular kind is a more complex process than simply creating a new object. The factory object might decide to create the object's class (if applicable) dynamically, return it from an object pool, do complex configuration on the object, or other things.

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