Creational design patterns are composed of two concept:
- One is encapsulating knowledge about which concrete classes the system use.
- Another is hiding how instances of these concrete classes are created and combined.
Creational design patterns are further catagorized into two design patterns:
- Object Creational Patterns, which deals with object creation.
- Class Creational Patterns, which deals with class Instantiation.
Object-creational patterns defer part of its object creation to another object, while Class-creational patterns defer its objection creation to subclasses.
Below are some of the design patterns, which are used very frequently,
Abstract factory pattern, which provides an interface for creating related or dependent objects without specifying the objects’ concrete classes.
Factory method pattern, which allows a class to defer instantiation to subclasses.
Builder pattern, which separates the construction of a complex object from its representation so that the same construction process can create different representation.
Prototype pattern, which specifies the kind of object to create using a prototypical instance, and creates new objects by cloning this prototype.
Singleton pattern. which ensures a class only has one instance, and provides a global point of access to it.
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