Singleton Questions

I write a singleton c++ in the follow way: class a { private: static a* m_pa; a(); virtual ~a();

I have a c# singleton class that multiple classes use. is access through instance to the toggle() method thread-safe? if

I got this síngleton cache object and it exposes an ienumerable property which just returns a private ienumerable variable. i have a

According to second answer from

My android application uses multiple network calls in a single activity and i have several of these activities where i have to use both post and

I have a question regarding objects in kotlin, to which i couldn't find a satisfying answer so far. it's basically the following scenario: i've

I need a singleton for the shared preferences which has async initialisation but also works with null safety. usually i used the following

I'd like to use the logger library in my app. i only want to instasiate it

I try to implement singleton pattern in python 2 but it doesn't work, but it works in python 3, someone help me explain why? class

I'm wanting to run a parallel process using a thread-safe singleton for a portion of that process. i'm using com interop in the singleton and can

I would like to create a singleton to access some functions, but when i import it, it doesn't find the class to import:

I have a singleton class and i added the msg method but i'm not sure if is okay to add it to the singleton class or not public

Firebase firestore provides the getinstance() method, which opens a socket (only one, at any time of execution of the app) and

I have a soundpool that i want to play in different fragments. so i load it within a singleton. what context do i have to use?

I have a simple app that uses a player as a singleton. @jvmstatic fun getinstance(context: context): myplayer { return

I am working on a large project where i have multiple managers to handle different tasks, i need an only a single object of these managers to be

If we have an object like this object repo { var activemovies: arraylist<movie>? = null }

I am trying to separate publisher and subscriber in node.js to be able to send data to each other through a shared eventemitter instance as

I use node-cache in my expressed based application. it needs to be setup using the following code; const nodecache = require(

I have a firebase app in swift. now my issue is very simple to explain but really weird to debug. issue: whenever i open the app, it

I have a database class in a typescript application i'm using that's set up as a singleton like so: export default class database

I was looking at this code

The laravel 5.3 mailer class is configured as a singleton according to this article

I'm using singleton object to hold data for the app which are changed or used on multiple places. in my case, i have arraylist of objects

We're trying to register a singleton e.g. $this->app->singleton('blah', function

I have a question about getting data from server. i get general data in mainactivity of my app and i want to use it across all activities. i was

My pref's clear is not working. this is my preferencmanager.java public class preferencemanager { private static final

I have a singleton class which i have implemented it in java fashion : companion object { @volatile private lateinit var

I have an npm dependency that i import into a file of my server node. i wish it was not a singleton because it should not be shared between each

I have progress dialog class which is singleton public class progressdialogmanager { private static progressdialogmanager

I use a singleton to access subscription offerings from revenuecat as an @observedobject on various views in the app:

I am working on a project with a lot of account management going on. unfortunately, the guy who set all of this up is on vacation and something

I need to run once a day task a. at 0:00:00 for specificity. but task execution can take more then 24 hours. in this case, i should not rerun the

I want to use singleton to show ads, but it doesn't work well. when i don't use singleton and use only viewcontroller, it works well.(can through

My singleton class: here's the singleton class i found on official documentations. public class singleton {

What is the difference between this two implementations of singleton. does creating of variable _instance in parent class make it work differently

I have a singleton class : let instance = null; class singletonclass { constructor() { if (!instance) {

I have a provider and in its register method i defined a singleton like this, $this->app->singleton('my.custom.singleton',

I have a spring's singleton bean and i need to access the request object in that bean. i tried autowiring the

In java, we can destroy the singleton object by below method. public class mysingleton { private static mysingleton

I was trying to write singleton class and initially i wrote the below code, which to me feels like singleton. i showed this to one of the guy and

Why do these two statement give different outcomes... print(database().id == database().id) (which gives false)

In java i would create something like this: private static myclass instance; public static myclass getinstance() { if(instance

Ok so i'v been starting to learn kotlin for a week now, and i love the language:p besides the great utility of extension function, i feel like

I have a problem. please take a look at these codes. when i click to login button first time it throws null pointer exception even i am typing

I am trying to implement singleton in javascript where i use node.js module.export and require(). my issue is that

I have a singleton class for global access to config information. this singleton class called configurationdata extends eventdispatcher. here is

I am trying to create a cachemanager class for my cache in which i want to register an object of type cache. my cache

I have the following code: @concurrencymanagement(bean) @startup @singleton public class mysingletonbean {

I tried to use a singleton

I have a menuview in a list view controller. the menuview added on the uitableviewcell when a more button in the cell being taped.

I learned from using swift with cocoa and objective-c that a singleton can be created like this: class singleton { static let