PureMVC

PureMVC is a lightweight framework for creating applications based upon the classic Model, View and Controller concept.

 

Based upon proven design patterns, this free, open source framework which was originally implemented in the ActionScript 3 language for use with Adobe Flex, Flash and AIR, has now been ported to nearly all major development platforms.

 

Two versions of the framework are supported with reference implementations; Standard and MultiCore, though only the Standard version has been ported to other languages so far.

 

The Standard Version provides a simple methodology for separating your coding interests according to the MVC concept. The MultiCore Version provides for multiple PureMVC applications to run within the same VM; modular programming. 

Standard Version

The Model, View and Controller application tiers are represented by three Singletons (a class where only one instance may be created).

 

The MVC Singletons maintain named caches of Proxies, Mediators and Commands, respectively. The Façade, also a Singleton, provides a single interface for communications throughout the application. These four Singletons are referred to as the Core Actors.

 

• Data objects, be they local or remote, are managed by Proxies.
• The View Components that make up the User Interface are managed by Mediators.
• Commands may interact with Proxies, Mediators, as well as trigger or execute other Commands.

 

All actors discover and communicate with each other via the Façade, rather than work directly with Model, View and Controller.

 

PureMVC also introduces a Publish/subscribe-style Observer notification scheme. This allows asynchronous, event-driven communications between the actors of the system, and also promotes a loose coupling between those actors, since the subscriber never needs to have direct knowledge of the publisher.

 

The Standard Version Reference Implementation is written in ActionScript 3.

MultiCore Version

This variation supports modular programming, allowing the use of independent program modules each with their own independent PureMVC 'Core'. A Core is a set of the four main actors used in the Standard framework (Model, View, Controller and Facade) This version of the framework uses Multitons instead of Singletons. Rather than storing a single instance of the class, a Multiton stores a map of instances. Each Core is referenced by an associated Multiton Key.

  

The MultiCore Version of the framework was developed due to the widespread need for modular support in a world of ever-more ambitious Rich Internet Applications which must load and unload large pieces of functionality at runtime. For instance a PDA application might need to dynamically load and unload modules for managing task list, calendar, email, contacts, and files.

 

The MultiCore Version Reference Implementation is written in ActionScript 3.

  

Ports

AS2

The ActionScript 2 Port is modeled after the Standard Version
It supports development for Flex 1.5, Flash 8, FlashLite
* PureMVC AS2 Port Home

AS3

Both AS3 Ports support development for Flex 2, 3, Flash 9/CS3, AIR.
* PureMVC AS3 Standard Port Home - Original reference implementation
* PureMVC AS3 MultiCore Port Home - Modular programming via Flex Modules or SWFs

C#

The C# Port is modeled after the Standard Version
It supports development for .NET 1.0/2.0 Silverlight, Windows Mobile and Pocket PC
* PureMVC C# Port Home

ColdFusion

The ColdFusion Port is modeled after the Standard Version
It supports development for ColdFusion 8
* PureMVC ColdFusion Port Home

haXe

The haXe Port is modeled after the Standard Version
It supports development for JavaScript, Flash 8, Flash 9 and the Neko VM
* PureMVC haXe Port Home

Java

The Java Port is modeled after the Standard Version
It supports Java Mobile, Standard and Enterprise Editions (ME, SE, EE),
JavaFX, Servlets, Applets
* PureMVC Java Port Home

PHP

The PHP Port is modeled after the Standard Version
It supports development for PHP 5 and 6
* PureMVC PHP Port Home

Python

The Python Port supports is modeled after the Standard Version
It supports development in Python 2.5 for wxPython and Google App Engine
* PureMVC Python Port Home