All Questions

To start off with an example: I have a read-only Repository used for getting arbitrary values. This behavior can be implemented multiple ways. I also want to allow opt-in mutation of the repository's ...

We need to call a webservice which registers a shipment with either UPS or TNT. You fill in some details, call the function to register and pass json for details. Pretty basic stuff. Shipment shipment ...

So I am writing a project using Spring Boot. All of my logic resides in @Service classes. I have separated each service class based on entity. For example - If I have two independent entities A and B, ...

I have a use case describing the following: The actor can view the table of listings. and I want to create another use case where the actor can delete a listing. I consider viewing the table of ...

public void function2(long input) { long s = 0; for (long i = 1; i < input * input; i++){ for(long j = 1; j < i * i; j++){ s++; } } } l'm pretty ...

Full-stack development is not new to me (1 year of professional NodeJS experience), however, I have not previously worked with Django. Therefore I could use some advice on what would be the proper way ...

So, in general casting and dynamic_cast in particular are to be avoided. But I don't see a proper alternative for this: List<DerivedA*> ListA; List<DerivedB*> ListB; Bool Add(Base* obj) { ...

Problem to solve I have a method parse_doc that should dynamically determine a parsing function to parse document_id based on the value of the document_id string: # list of files that may have ...

Let's say that I have the following class. class Application { protected $dependency; public function setDependency($type) { $this->dependency = ServiceLocator->...

One of the major issues that I am facing as a Website and App developer, is that certain components / features have to be redeveloped over and over again with a new project. For instance login, signup,...

TLDR: If microservice A needs to combine data from services B & C (that are not aware of one another), should B (or C) do the data merging for service A, or it will be up to service A? In Details ...

A project is structured as so: A build server listens to changes in two repositories: a frontend and backend repo. When it picks up a change it builds, tests, and deploys the updates to a production ...

I wanted to get some feedback on the design of a chat application I recently developed. The application is written in PHP, but the language probably isn't important here. The main components are User, ...

I have been confused about the best process for private distribution in iOS - imagine we are a company like Just Eat, where venues can sign up with us and take orders from customers via a customer app....

I'm implementing a search functionality and based on the query parameter i use a different class to search. I will only illustrate one SearchStrategy which is the SearchThreads, just to make the ...

I guess the answer to this is more of a personal opinion than anything but I am using Azure active directory to validate users in my web application. This obviously can be a pain as I have to log in ...

In Computer Systems: a Programmer's Perspective, Alignment is enforced by making sure that every data type is organized and allocated in such a way that every object within the type satisfies its ...

In Computer Systems: a Programmer's Perspective, In addition, the compiler may need to add padding to the end of the structure so that each element in an array of structures will satisfy its ...

I have two tables products and product_tags in my database having a many-to-many relationship. But I am having a hard time coming up with a practical name. So I was wondering if there is a standard ...

As far as I know, throw-away prototyping involves creation of prototypes in iterations where each prototype is discarded after one iteration. For incremental prototyping, the resources I referred to ...

How much should I factor in potential future developer error when writing code? This works better with a few examples: switch(something) case 1: return good; case 2: return fine; case 3: return ...

I have been tasked with creating a unified UI for my current company for our Blazor Apps. We have 15 or so apps and we need to add more. Our current requirements are: UI appears the same The Menu ...

I read everything and its opposite about how to organize its code. Of course, I try to follow the SOLID principles, but since I consider myself quite a beginner, I would need some outside advice on ...

I've encountered the infomral definition of foldr in a couple of books. I've attached an image from Bird and Wadler's "Introduction to Functional Programming" (1988), but I've seen the same ...

I'm part of a team that has just started using Ionic and I'm wondering, what advantages does it bring to the table? Personally, so far all the development I've done with Angular was using HTML + SCSS ...

Currently when working in a scrum team in a software service company, who has a clean business domain. I am working on adding new features to an existing module. As the existing module is legacy, and ...

What to do when your client keeps jacking with the system you developed for them I've had a client in the real estate training business for six years now. We have an ongoing weekly minimum time ...

I have Document and ExternalDocument classes in my system, where ExternalDocument extends Document. The main distinction is that ExternalDocument holds onto externalDocumentId and externalEventId data ...

I am developing a project using C++/CLI and WinForms. It is a geometry project, which is why I have to use C++/CLI, because of the C++ geometry library CGAL. I chose to use WinForms for the UI because ...

I have a message queue where messages contain snapshots of Datasets. These datasets can arrive in any order unrelated to the order they are produced. (No influence on that point). The datasets have a ...

I am wondering how I would validate some actions in my domain when a parameter of an action needs to be validated, but that parameter's entity is actually in a different domain so I can't retrieve it. ...

I'm developing a multi-database application. There is one admin database and many customer databases which are identical in structure. I also have a generic RepositoryBase which looks like the ...

We are building a microservice architecture. We have one service which imports a set of data (usually, ca. 10MB). Another service should do some analysing and manipulation stuff on these data. A third ...

I'm doing scientific computations using Python. So far I have a module core and a class Simulation inside. There are many instances of Simulation at the runtime but all of them must share the same &...

Let's say, we're using an OAuth / OpenID Connect (OIDC) flow (in a Zero-Trust situation) to secure two APIs: ServiceA and ServiceB. To implement some of the functionality of ServiceA, it depends on ...

My situation is that i am trying to model an inventory system in a game, In the game there are items that can be placed and retrieved from the players inventory. For example; player inserts a sword ...

Background: I've started dumping several hunderds of GBs to Elastic Search in an attempt to make my query faster through denormalization. They are faster indeed! At this point I would like to exposed ...

Suppose there's a root <App /> which houses multiple components, one of them being, say <SearchBox />. App component houses the app state (such as searchResults array) and iterates the ...

I need to seek opinionated suggestions from the experts. I have a very large application which provides a wide range of functionalities. I have another desktop application which runs in the system and ...

There are many discussions related to whether it is better to have only one or multiple exit points per function, but it is not clear to me which statements can be considered as exit points: only ...

Inside my business logic, I have something like a pipeline with multiple actions. Each action wrapped into try/catch and can handle exceptions by himself (logging, saving state for retry ex). And I ...

There is a parent window that is the basis of the program, and there are several sub windows under it. Editor is one of the sub window and I'm making it. The code is as follows: // This is Code-Behind ...

I am looking how agile methods can be applied for setting up a chained-application (made of several services for example) developed by several teams. In particular, I think the common sources about ...

As I boot up Eclipse for C++ with the "Darkest Dark Theme with DevStyle" installed, it spits out quotes--one per day. Yesterday's was: A bug in the code is worth two in the documentation. ...

The ISP says that the client should not depend on things what are not needed. As a solution small focusing interfaces (contracts) can be used: interface RegisterUser { User register(String username);...

We are given a task to create an Web Service API for a mobile application. The problem is we have to use a legacy database that is not normalized and its very tedious to work with. We are accustomed ...

In COM programming, each COM object exposes a queryInterface method. You provide it a type that you want to "cast" the COM object as, and if it supports it it'll return you a reference to ...

I am learning about UML and OO Design. I came across this statement "Use Associations for Classes and Attributes for DataTypes" From taking a look at the example UML diagrams it's not ...

Im starting to develop a visually-simple but infrastructural-ly robust real time multiplayer game to show off my backend skills and hopefully get a job at Blizzard or something like that. The game is ...

I am currently building an ordering application where users can send orders for available items. It must have the functionality to work offline as well. After user is online, the user has the sync ...