Questions tagged [singleton]

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Convert singleton to single instance with concrete Go example

I have been using singletons in the past. However, reading articles like Singletons are Pathological Liars have led me to explore alternatives to singletons. There are a few posts discussion ...
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0answers
450 views

When to use trait components, objects, package objects in Scala

When I am adding dependencies in Scala, I tend to use mixin trait components for those that are inherit to the class itself. For example, DaoGenerator extends Generator However, for trait components ...
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0answers
599 views

Using Singletons in JS with workers

I'm building a javascript application that does continuous drawing, but relies on asynchronous scripts in the background which also need to poll for events and write to "global variables". This got me ...
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1answer
874 views

Loading data from JSON file for one time

I have JSON file which has some hundereds of rows stored like below.. [ { "Id": "1", "Name": "A" }, { "Id": "1", "Name": "A" } ] I am trying to load this into collection of a ...
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0answers
179 views

Why do I define my Queries, Data, and Mutation as Singleton when using GraphQL in .NET Core?

Why do I define my Queries, Data, and Mutation as Singleton when using GraphQL in .NET Core? From the doc's dependency injection page: public void ConfigureServices(IServiceCollection services) { ...
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0answers
250 views

A modification of singleton pattern

"Singleton" is widely considered anti-pattern ("bad" in everyday language). What about this alternative modified singleton pattern? An object constructor for our class ensures that at any given ...
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0answers
159 views

Will this singleton style class work with accessing a session on multiple MVC controllers?

Question background: I have an e-commerce site I'm developing that requires multiple controller methods to access a single session variable. The idea: My idea was to create a singleton style class ...
-1
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4answers
128 views

Base global system for two customizable subcomponents

The following explanation is rather detailed, but I think if I simplified the problem at hand no proper answer could be given. I'm working on a scripting system for a game (for end users rather than ...
-2
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2answers
872 views

C++ Which of the following is a better singleton pattern approach?

I'm now stuck in the server I am programming, simply because I do not seem to find a good and realiable way to handle my "single object" classes, I've attempted the Singleton pattern but it is just ...