Multiton

Multiton - Dart

The Multiton pattern ensures that only a limited number of instances of a class can exist. It’s a relaxed version of the Singleton pattern. This is achieved by maintaining a static list or map to store the instances and controlling the instance creation process. The code uses a static, private map to hold the …

Multiton - Scala

The Multiton pattern ensures that only a fixed number of instances of a class can be created. It’s a relaxed version of the Singleton pattern. This implementation uses a lazy val collection to store the instances, creating them on demand up to the specified maximum. The apply method provides access to these …

Multiton - PHP

The Multiton pattern ensures a restricted number of instances of a class are created, and provides a global access point to these instances. It’s a variation of the Singleton pattern, allowing for more than one instance but still controlling instantiation. This implementation uses a static array to store the …

Multiton - Ruby

The Multiton pattern ensures that only a limited number of instances of a class can exist. Unlike a Singleton which restricts to just one instance, a Multiton allows a specified quantity. This example uses a class variable @instances to store the created instances and a class method instance to manage their creation, …

Multiton - Swift

The Multiton pattern ensures a restricted number of instances of a class. Unlike a Singleton which allows only one instance, a Multiton allows a small, predefined set. This is useful when you need a few, globally accessible instances representing distinct, but related, states or roles.

This Swift implementation uses a …

Multiton - Kotlin

The Multiton pattern ensures that only a fixed number of instances of a class can exist. It’s a variation of the Singleton pattern, where rather than a single instance, you allow a limited, pre-defined number. This can be useful for managing resources like database connections or limited-license software access. …

Multiton - Rust

The Multiton pattern ensures that only a specific number of instances of a class exist. It’s a relaxed version of the Singleton pattern, allowing for a limited concurrency or distribution of instances. This Rust implementation uses a static mutable vector to store the instances and a Mutex to provide thread-safe …

Multiton - Go

The Multiton pattern ensures that only a limited number of instances of a class are created. It’s a variation of the Singleton pattern, allowing for a small, predefined count of instances instead of just one. This is useful when a fixed number of resources or managers are needed and creating more would be detrimental. …

Multiton - C

The Multiton pattern ensures a limited number of instances of a class are created, and provides a global access point to each of those instances. It’s a relaxed version of the Singleton pattern, allowing for more concurrency or logical separation. This C implementation uses a static array to hold the instances, …

Multiton - C++

The Multiton pattern ensures that only a specific number of instances of a class exist. It’s a relaxed version of the Singleton pattern. This is achieved by maintaining a static collection (like a vector) of instances and controlling access to them. The example below implements a Multiton for a Logger class, …