| layout | title | folder | permalink | categories | tags | |||
|---|---|---|---|---|---|---|---|---|
pattern |
Factory Method |
factory-method |
/patterns/factory-method/ |
Creational |
|
Intent: Define an interface for creating an object, but let subclasses decide which class to instantiate. Factory Method lets a class defer instantiation to subclasses.
Applicability: Use the Factory Method pattern when
- a class can't anticipate the class of objects it must create
- a class wants its subclasses to specify the objects it creates
- classes delegate responsibility to one of several helper subclasses, and you want to localize the knowledge of which helper subclass is the delegate
Credits