Factory Pattern Map

The Factory Pattern is a creational pattern used to define a runtime class of an object and creating its instance, hiding the intricate details of object creation from the user. import java.util.Map public class ReportFactory private static final MapltString, Reportgt creators new HashMapltgt public static void registerReportString

First of all we will create an example of Factory Pattern without using Structure Map and then we will use Structure Map in the same example to demonstrate it's concept and power. Factory pattern without using Structure Map. using System namespace FactoryPattern public class ExampleWithoutStructureMap Factory f new Factory public void

By adopting a factory pattern with a Map based approach, you eliminate the need for if-else statements in your code. This not only enhances readability but also significantly improves maintainability and scalability. As your application grows, this pattern allows you to easily integrate new types into your system.

Solution. The Factory Method pattern suggests that you replace direct object construction calls using the new operator with calls to a special factory method. Don't worry the objects are still created via the new operator, but it's being called from within the factory method. Objects returned by a factory method are often referred to as products.

Factory Pattern with Map and Lambda. Java 8 introduced lambdas, a way to write blocks of code without explicit defining a method, it's parameters and the function return. And we can also use a method reference to make it simpler. In the bellow example the key of Map is the Account instance and the value is the method to be executed as reference.

The Factory Method Design Pattern is a creational design pattern that provides an interface for creating objects in a superclass, allowing subclasses to alter the type of objects that will be created. This pattern is particularly useful when the exact types of objects to be created may vary or need to be determined at runtime, enabling flexibility and extensibility in object creation.

Probably the factory pattern is one of the most used patterns. For example a graphical application works with shapes. In our implementation the drawing framework is the client and the shapes are the products. For creating objects inside the factory class without knowing the object type we keep a map between the productID and the class type

The standard of the factory pattern is not filled up with objects on start. There are no objects at all. The factory only knows how to create a new object. A possible implementation can do this with a map and registered static! methods of the class not a object .

The Factory Pattern is one of the most powerful creational patterns in Java, providing an elegant solution for object creation without exposing the instantiation logic. MapltString

Factory pattern is one of the most common creation patterns. It loosely connects the application by hiding the implementation details from the client code using the interface. It leaves the