dev.enekoalonso.com » inheritance http://dev.enekoalonso.com having fun with code Wed, 12 Oct 2011 21:40:17 +0000 en hourly 1 Finally: Singletons, the Mootools way http://dev.enekoalonso.com/2010/01/18/finally-singletons-the-mootools-way/ http://dev.enekoalonso.com/2010/01/18/finally-singletons-the-mootools-way/#comments Mon, 18 Jan 2010 17:26:38 +0000 Eneko Alonso http://dev.enekoalonso.com/?p=404 I have been using for a while the “new new Class” syntax to create singletons on the projects I am working on. This is for many reasons, but specially because I didn’t like other solutions like Class.Mutators, Class.Oclude or extending a plain object with $extend().

Now, after discussing a little bit on the Mootools email list about what was the best way to create singletons, I have created Class.Singleton so we can create singletons the Mootools way. Here is how it works:

  1. var MySingleton = new Class.Singleton({
  2.     initialize: function(){
  3.         // code here
  4.     },
  5.     method1: function(){
  6.         // code here
  7.     },
  8.     method2: function(){
  9.         // code here
  10.     }
  11. });

Using inheritance, mixins, etc

Class.Singleton works like defining any other Mootools class using Class(), so we can have inheritance, mixins, etc.

  1. var BaseClass = new Class({
  2.     initialize: function() {
  3.         // Initialization code here
  4.         console.log('BaseClass initialized.');
  5.     },
  6.     method1: function() {
  7.         // some code
  8.     }
  9. });
  10.  
  11. var MySingleton = new Class.Singleton({
  12.     Extends: BaseClass,
  13.     initialize: function() {
  14.         this.parent();
  15.         console.log('MySingleton singleton initialized.');
  16.     },
  17.     method1: function() {
  18.         this.parent();
  19.         // more code
  20.     }
  21. });

Hope you like it!

Repository url: http://github.com/eneko/Class.Singleton

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