
.net - What is a singleton in C#? - Stack Overflow
Jan 28, 2010 · A singleton is a class which only allows one instance of itself to be created - and gives simple, easy access to said instance. The singleton premise is a pattern across software …
How do you implement the Singleton design pattern?
One example is if the constructor of the singleton allocates memory from the heap and you wish that allocation to be predictable, for instance in an embedded system or other tightly controlled …
What are drawbacks or disadvantages of singleton pattern?
The singleton pattern is a fully paid up member of the GoF's patterns book, but it lately seems rather orphaned by the developer world. I still use quite a lot of singletons, especially for factory
What are the real world applications of the singleton pattern?
Apr 9, 2009 · Simple. What does a singleton do? It provides global access to an instance of an object, and It guarantees that no more than one instance of that type can ever be created. So …
What is the best way of implementing a singleton in Python?
Jun 10, 2020 · A singleton is special because its instance is created only once, and a metaclass is the way you customize the creation of a class, allowing it to behave differently than a normal …
Simplest/cleanest way to implement a singleton in JavaScript
What is the simplest/cleanest way to implement the singleton pattern in JavaScript?
Implementing Singleton with an Enum (in Java) - Stack Overflow
Oct 10, 2014 · In this Java best practices book by Joshua Bloch, you can find explained why you should enforce the Singleton property with a private constructor or an Enum type.
java - How to create a singleton class - Stack Overflow
What is the best/correct way to create a singleton class in java? One of the implementation I found is using a private constructor and a getInstance() method. package singleton; public …
Is there a simple, elegant way to define singletons?
Aug 28, 2008 · Creating a singleton decorator (aka an annotation) is an elegant way if you want to decorate (annotate) classes going forward. Then you just put @singleton before your class …
Singleton & Multithreading in Java - Stack Overflow
Jun 17, 2012 · What is the preferred way to work with Singleton class in multithreaded environment? Suppose if I have 3 threads, and all of them try to access getInstance() method …