A factory constructor is a constructor that can be used when you don’t necessarily want a constructor to create a new instance of your class . This might be useful if you hold instances of your class in memory and don’t want to create a new one each time (or if the operation of creating an instance is costly).
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In Factory pattern, we create object without exposing the creation logic to the client and refer to newly created object using a common interface.
Read moreWhat is meant by factory method?
Factory method is a creational design pattern which solves the problem of creating product objects without specifying their concrete classes . Factory Method defines a method, which should be used for creating objects instead of direct constructor call ( new operator).
Read moreWhat is a factory constructor flutter?
A factory constructor invokes another constructor . Since a factory constructor does not directly create a new instance, it cannot use a constructor initializer list. A normal constructor always returns a new instance of the class.
Read moreWhat is factory constructor in flutter?
Save. Factory Method is referred as a creational design pattern which provides an interface for creating objects in a superclass, but allows subclasses to alter the type of objects that will be created . Also known as virtual constructors.
Read moreWhat does factory method do in Dart?
The Factory Method pattern, sometimes referred to as the Virtual Constructor pattern, provides a way to conceal an object’s creation logic from client code , but the object returned is guaranteed to adhere to a known interface.
Read moreWhat is use of factory in flutter?
Factory Method lets a class defer instantiation to subclasses . … When objects are created within the class, it is very inflexible since you cannot change the instantiation of the object independently from the class — the class is committed to a particular object.
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