FLEX CAIRNGORM FRAMEWORK PDF

This document is from the authorized Flex curriculum written by learn the basics of building Flex applications using the Cairngorm framework. Cairngorm is based on Model View Controller (MVC) framework, specifically designed to facilitate complex state and data synchronization. These explain the Cairngorm Architecture, which is our preferred way to structure Flex applications. Below the introductory material can be found more detailed.

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This site uses cookies. Cut It Off-Cairngorm without front controller. The other benefit is reusability of the modules.

There are tons of articles and diagram to discuss about. The entire framework is open-source, but commercial use of some “advanced modules” requires a commercial licence.

Then fle reusability and ease of use supporting system have been developed. The delegate is created within a command object. A static reference to the ModelLocator singleton instance is used by the View layers to locate the required data. The role of the View layer in a Cairngorm application is to throw events and bind to data stored in the Model.

This page was last edited on 25 Decemberat To eliminate the need to import CairngormEventDispatcher in every view, starting from Cairngorm 2. Email required Address never made public.

Flex – Cairngorm Architecture Overview

This is my architecture diagram: The execute method can update the central Model, as well as invoke a Service class which typically involves communication with a remote server. All articles with dead external links Articles with dead external links from December Articles with permanently dead external links Pages using Infobox software with unknown parameters.

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The class LoadEmployeesEvent package com. So, is Cairngorm right for your project? The Model czirngorm is represented cirngorm the class ModelLocatorwhich stores the application-specific data these are often collections of value objectsa. The result will be responded in the result method of The command, the model will be updated and binded to the result view: The framework design is based on singletons, which csirngorm to tight object coupling.

They recieve the event and its data, execute the logic an can change the workflow state of the model and view.

Apache Flex – A Practical Guide: Introduction to MVC Architecture of Cairngorm

Cairngorm has been around longer than any other Flex framework. The modern frameworks work by watching the display list for Views that you’re interested in to be added to the stage, then supplying them with dependencies according to rules you set up. It is specifically designed to facilitate complex state and data synchronization between the client and the server, while keeping the programming of the View layer detached carngorm the data implementation.

To find out more, including how to control cookies, see here: It contains no methods or logic and acts as a pure data container. It should only pass strongly typed value objects to a responder.

Introducing Cairngorm | Adobe Developer Connection

The FrontController instance, which receives every View-generated event, dispatches the events to the assigned Command class based on the event’s declared type. The AppController implementation package com.

Software architecture Cairngirm computer libraries. The List component the View knows about its model and is bound to it directly via its dataProvider property. The improved version of the Cairngorm framework is more suitable for Web application development and maintenance.

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It manages the view an is declared as [Bindable] to use all variables for data binding in the view. See its methods setCredentials and setRemoteCredentials for details. Having no other choice but data binding for updating the UI may cause performance problems. Validator; private function login: This site uses cookies. Email Required, but never shown.

Model Locator carries all the transport information between the components It is a Bindable object; Service Locator defines the interface to communicate with datasource Httpservice, Webservice,Remoteobject.

For the love of GOD, don’t use Cairngorm 2 as a framework. Most of them also have a central EventDispatcher that allows the views and business logic to communicate without knowing about each other.

How did it happen? Command When a View component fires an event, FrontController finds the Command class that was registered with this event and calls its method execute.

You can download the source code of this application at http: The locate the required service in the Service Locator, call the given method on it and route the response back to a responder object. Fill in your details below or click an icon to log in: The magic is in Main application view: