Factory Pattern

Last updated Nov 8, 2022 Edit Source

1. Decouple class selection and object creation from the place where the object is used.
2. Need to instantiate a set of classes but without knowing exactly which one until runtime.
3. Do not want to expose object creation logic to the client.

The interface and concrete product classes implement an additional Strategy Pattern design which allows the algorithms to be instantiated and changed during runtime.

1. Encapsulation of object creation
2. Extensibility of classes
3. Can easily change object creation logic without affecting context due to decoupling

1. Complexity