What is the advantage of factory design pattern?

Advantage of Factory Design Pattern Factory Method Pattern allows the sub-classes to choose the type of objects to create. It promotes the loose-coupling by eliminating the need to bind application-specific classes into the code.

What are the disadvantages of factory design pattern?

One disadvantage of the Factory Method pattern is that it can expand the total number of classes in a system. Every concrete Product class also requires a concrete Creator class. The parameterized Factory Method avoids this downside.

Is the factory pattern bad?

That’s just a bad habit. The Factory Method is a design pattern that relies on inheritance. If you make it static , you can no longer extend it in subclasses, which defeats the purpose of the pattern. When a static creation method returns new objects it becomes an alternative constructor.

Is the factory pattern useful?

It is useful. Any class deferring the object creation to its sub class for the object it needs to work with can be seen as an example of Factory pattern.

What problem does factory pattern solve?

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).

What are the advantages of simple factory?

The Advantages of the Simple Factory Pattern

• It provides an elegant way to abstract your code so there’s less visual clutter.
• It allows you to introduce specialized, focused classes with a single purpose (which is great if you follow the SOLID principles)

What are the consequences of applying the factory method pattern?

Here are two additional consequences of the Factory Method pattern:

• Provides hooks for subclasses. Creating objects inside a class with a factory method is always more flexible than creating an object directly.
• Connects parallel class hierarchies.

What is factory design?

Factory method is a creational design pattern, i.e., related to object creation. In Factory pattern, we create objects without exposing the creation logic to the client and the client uses the same common interface to create a new type of object.

What is the factory method patterns explain with examples?

Example. The Factory Method defines an interface for creating objects, but lets subclasses decide which classes to instantiate. Injection molding presses demonstrate this pattern. Manufacturers of plastic toys process plastic molding powder, and inject the plastic into molds of the desired shapes.

What can be disadvantages of factory method?

A potential disadvantage of Factory methods is that clients might have to sub-class the creator class just to create a particular concrete product object. Subclassing is fine when the client has to subclass the creator class anyway, but otherwise, the client now must deal with another point of evolution.

What type of pattern is factory pattern?

What are the advantages of factory pattern?

Advantage of Factory Pattern – Loose Coupling and Segregation of Responsibilities. Now instead of hard binding the complete logic to decide the nature and shape of the object on the basis of some conditions, you are assigning the responsibility to some other object and hence making the relationship loosely coupled and hence main tenable.

What is a factory pattern in Python?

A factory pattern is one of the core design principles to create an object, allowing clients to create objects of a library (explained below) in a way such that it doesn’t have tight coupling with the class hierar Factory method is a creational design pattern , i.e., related to object creation.

What is the use of factory method?

Factory method ranks among the most used design patterns in software development. As a creational design pattern, it’s used to create objects but without providing a specific class type for it. Rather we only define the interface or an abstract class while letting a sub-class decide which class to instantiate.

What is factory design pattern in software design?

Use of factory pattern design makes your software design more flexible without adding too much complexity. While other design patterns need new classes, the factory method only needs a new operation. To understand how factory design pattern works, let us look at a sample case study.