Golang 设计模式之单例模式 - 知乎 - 知乎专栏
singleton 是包内的不可导出类型，在包外即便获取到了，也无法直接作为方法的入参或者出参进行传递，显得很呆; singleton 的对外暴露，使得 singleton 所在 package 的代码设计看起来是自相矛盾的，混淆了 singleton 这个不可导出类型的边界和定位
singleton-package · PyPI
2024年6月23日 · The singleton_package is a simple Python package that provides a Singleton metaclass. This metaclass can be used to create singleton objects, ensuring that only one instance of a class exists throughout the application. …
design patterns - Singleton in go - Stack Overflow
2009年12月1日 · package singleton type single struct { O interface{}; } var instantiated *single = nil func New() *single { if instantiated == nil { instantiated = new(single); } return instantiated; } single and instantiated are private, but New() is public.
What is the best way of implementing singleton in Python
2020年6月10日 · from typing import Callable, Dict, Set def singleton(cls_: Callable) -> type: """ Implements a simple singleton decorator """ class Singleton(cls_): # type: ignore __instances: Dict[type, object] = {} __initialized: Set[type] = set() def __new__(cls, *args, **kwargs): if Singleton.__instances.get(cls) is None: Singleton.__instances[cls] = super ...
Singleton pattern of common design patterns in Golang
2022年6月1日 · It is very simple to implement the singleton pattern in a hungry Chinese style, just look at the code directly: package singleton. return instance. The singleton package will automatically initialize the instance instance when it is imported.
单例模式-地鼠文档 - topgoer.cn
package singleton import "sync" //Singleton 是单例模式类 type Singleton struct {} var singleton *Singleton var once sync.Once //GetInstance 用于获取单例模式对象 func GetInstance *Singleton { once.Do(func() { singleton = &Singleton{} }) return singleton }
GitHub - zcutlip/py-singleton-metaclasses: A package of python ...
A package of python metclasses for implementing singleton and related patterns. Resources
GitHub - Antinna/singleton_macro: A Dart package that provides …
A Dart package that provides a Singleton macro to transform classes into singletons automatically. This package leverages Dart's macro system to enforce the singleton pattern on the annotated classes. Automatic singleton implementation. Ensures a single instance of the class. Simplifies singleton pattern usage in Dart.
Singleton pattern VS package loading - Stack Overflow
2021年2月2日 · Singleton: You create a class where it has a scope instance as a class member and you have to create threadsafe getter and creator to build the singleton instance. Package/Model Loading: You can simply define and instantiate a state data in the package as a variable during the init of the package.
Singleton in Go / Design Patterns
Singleton pattern in Go. Full code example in Go with detailed comments and explanation. Singleton is a creational design pattern, which ensures that only one object of its kind exists and provides a single point of access to it for any other code.
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