This document is from the authorized Flex curriculum written by learn the basics of building Flex applications using the Cairngorm framework. Flex frameworks are software libraries that assist developers in building rich internet Cairngorm is one of the primary open-source software frameworks for application Hello World Example using Cairngorm · Official Adobe Cairngorm Site. I have just constructed my first Cairngorm application: an Adobe Flex application that uses the Cairngorm application framework, implementing (For example, a user types their username and password into a login box, this.

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Views Read Edit Cwirngorm history. What a Great demo, you are sooo inspiring. The fact that Cairngorm is built around a Command pattern with a centrally located framewprk repository can be very convenient for some projects that require audit or undo functionality. Search or use up and down arrow keys to select an item. If you have to develop a project without experienced Flex developers on your team, however, Cairngorm can give your project a structure that will prevent it from failing.

When front controller handles the event, it instantiates a new ConnectionCommand and invokes method execute. Although keeping all application events in one place simplifies their maintenance, it leads to tighter coupling of the application components. Feel free to post in any questions.


If the remote call is successful the framework invokes result method, in this method we retrieve the event result and store it value in the Model Locator Value Object. The class LoadEmployeesEvent package com.

Now your project tree should appear like the image below: Even in a midsize application this can translate to a hundred or more additional Cairngorm-specific classes. The other benefit is reusability of the modules. This tjtorial to the need for additional coding to convert the data to appropriate types.

The framework design is based on singletons, which leads to tight object coupling. The value objects of the application have been placed in the folder called vo. Please note the use of four global framewrk Before you start you have to be sure that the crossdomain. Save and close Welcome view and now edit CompanyList view.

The command instance calls the delegate method and waits for the result. The Front Controller object serves as a central registry of all Cairngorm events. It was ccairngorm by iteration:: We may again face issues, trying to obtain the result of the command in the class that dispatched the event.

Dispatch thrown events to the mapped Command element.

Flex Cairngorm – Interacting with a Command, through an Event

More information are available on this blog Add crossdomain. The Controller layer is implemented as a singleton FrontController.

Software architecture Free computer libraries. The command folder is for Command classes; control is for events and FrontController ; the ModelLocator is located in the model folder; and the view folder has visual components as shown in Figures through The List component the View knows about its model and is bound to it directly via its dataProvider property. Please note that as ActionScript 3 does not support private constructors, the public constructor of this class throws an error if someone tries to improperly instantiate it i.


Flex Cairngorm – Interacting with a Command, through an Event | Techode

Use the mediator to bind the data from the proxy to the view component. It was open sourced in the summer of On the application startup, the code dispatches LoadEmployeesEvent and, as if by magic, the EmployeeList gets populated from Employees. Object; public function Delegate responder: This site uses cookies. For some reason, the author of this code decided not to use EmployeeVO here and stores each Employee attribute separately in SaveEmployeeEvent.

It also implements the interface IResponderwhich requires you to add the result and fault methods.

The last step is to implement the remote call in the Delegate class; open this file and add this function: The AppController implementation package com. You are commenting using your WordPress.