I've recently found an interest in the factory function pattern in JavaScript. Classes may be pretty clean, but I've found they've got their fair share of issues. (I'm not going to even talk about ...

I've been attempting to get a better understanding of using a Factory Pattern in C++ lately. I've consulted the following resources: How to implement the factory method pattern in C++ correctly ...

I am new to Guice and I was wondering how far I can take it. I have an interface UserInfo with multiple implementing classes GoogleUserInfo, FacebookUserInfo, TwitterUserInfo etc. These classes are...

Can't all factory methods be static ? Does something that produces a product need state ? When is it appropriate to go for a instance factory or static factory method ? Can you provide me examples ...

I started looking at different design patterns, and now I am focussing on the Factory Design Pattern. I looked at some examples, youtube tuturials and blogs and I got most but I still didnt get why...

I'm trying to implement the singleton pattern in a database helper class, but, I can't seem to understand the purpose of a factory constructor and if there's an alternative method to using it. cl...

How we can apply Dependency injection without using a Framework when we have two UIViewControllers that are very deep in the hierarchy and they both need the same dependency that holds state and th...

I am attempting to implement my first Factory Design Pattern, and I'm not sure how to avoid using instanceof when adding the factory-made objects to lists. This is what I'm trying to do: for (Bluep...

Simple factory: Factory method: hey everyone. I am looking for the difference between simple factory and factory method.. I know the structural difference(images above), but I cant understand ...

I'm using flask with the app factory pattern. I do know that the app factory pattern manages configuration objects only in the factory function. (as in the following code) def create_app(config): ...

I am working on a side project to better understand Inversion of Control and Dependency Injection and different design patterns. I am wondering if there are best practices to using DI with the fac...

I have two classes: Model and User. User extends the Model. export Model { id: number; static fromData<T>(data: any): T { return Object.assign(new Model(), data); } } export User extend...

I was looking through many approaches to implement a Factory pattern in Java and still couldn't find a perfect one which doesn't suffer from both if/switch plus doesn't use reflection. One of the b...

In Magento 2 what is the factory pattern and used for ? I'm new in magento so can you please explain me in detail.

Erich Gamma's GOF design pattern book says: Whereas the word application can create several documents on its own as shown below: It appears that one application can create several documents....

So I am trying to override __new__ and let it exist as a factory to create derived instances. After some reading on SO, I am under the impression that I should be calling __new__ on the derived in...

Take the following classic factory pattern: public interface IPizza { decimal Price { get; } } public class HamAndMushroomPizza : IPizza { decimal IPizza.Price { get { return 8.5m; } } }...

I know this question has been asked several times in stackoverflow but somehow still had some trouble figuring out a solution. The following example I think is a good case to have static methods p...

I am learning design patterns newly & I am trying to understand the difference between Simple Factory & Factory Method Pattern. First I want to clear that , I tried reading lot of articles ...

I couldn't understand the role of defining an abstract class / interface for the factory class, which is something i always see in all tutorials on the web. Can somebody please put some light on th...

I'm still fairly new to programming and have been tasked with creating a WebHook consumer that takes in a raw JSON string, parses the JSON into an object, which will be passed into a handler for pr...

I have been working on an API which is based on Laravel framework in PHP, but this is not specific to the language. There is a number of third party APIs are used here in the API and have a number ...

I know there are a lot of questions out there about differences of different factory patterns, but the answers are so different and confusing. The books that i read use unclear and (over)simplified...

I'm making a custom user bundle, allowing for defining multiple user types, with their own repositories, managers, providers etc. So, I decided, instead of creating the limited set of controllers, ...

I have been trying to get my head around this http://symfony.com/doc/current/service_container/factories.html But there seems to be a piece missing that tires it all together OR I am completely m...