Software Engineering | factory method pattern

A factory Object usually contains one or more methods to create various types of objects that can be created by the factory. These methods may receive parameters to specify the object creation method and return the created object.

Sometimes, the control process of a specific type of object is more complex than simply creating an object. In this case, factory objects will be used. A factory object may dynamically create a product object class, return an object from the object pool, perform complex configuration on the created object, or apply other operations.

These types of objects are useful. Several different design patterns apply the factory concept and can be used in many languages. For example, in design patterns, factory method patterns, abstract factory patterns, generator patterns, and even Singleton patterns all apply the concept of factories.