Multiton pattern: Difference between revisions

Revision as of 09:35, 9 April 2019

Revision as of 14:10, 25 November 2019

Line 25:

public enum MultitonType {

ZEROZero,

ONEOne,

TWOTwo

};

public class Multiton {

private static readonly DictionaryIDictionary<MultitonType, Multiton> instances =

new Dictionary<MultitonType, Multiton>();

private int number;

Line 40:

public static Multiton GetInstance(MultitonType type) {

// lazyLazy init (not thread safe as written)

// Recommend using Double Check Locking if needing thread safety

if (!instances.ContainsKey(type)) {

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// Sample usage

public static void Main(string[] args) {

Multiton m0 = Multiton.GetInstance(MultitonType.ZEROZero);

Multiton m1 = Multiton.GetInstance(MultitonType.ONEOne);

Multiton m2 = Multiton.GetInstance(MultitonType.TWOTwo);

System.Console.WriteLine(m0);

System.Console.WriteLine(m1);