Good RobotLeg presentation at 360Flex
Paul Robertson gave a RobotLeg presentation at 360Flex and put his slides online. I had to dive into a RobotLeg application the other and wanted a refresher and found his slides really great so I’ve extracted for your (and my) convenience some useful bullets points:
- View
- the View is represented by your view components and their Mediators
- Mediators provide API for view components
- Mediators listen for view component events
- Mediators listen for framework events
- Mediators dispatch framework events
- view components are not coupled to their Mediators
- Mediators are coupled to their view components
- Mediators can access Service and Model classes directly
- Actor
- Actor is the base class for Model and Service classes
- eventDispatcher is injected into Actor
- Actor provides a dispatch(event) method
- Actor is for your convenience
- Model
- Models extend Actor
- Models provide an API for data
- Models sit between application data and other actors
- Models should not listen for framework events
- Models dispatch framework events
- Service
- Services extend Actor
- Services usually implement an interface
- Services communicate with the outside world and provide an API to external services
- Services can parse results from external services
- Services do not store data
- Services do not receive framework events
- Services dispatch framework events
- Controller
- represented by the Command class
- Commands are executed in response to framework events
- Commands are stateless
- Commands perform work on Service and Model classes and dispatch events (call other commands)
- Commands receive data from the events that trigger them
- Commands dispatch framework events
- Commands do not receive framework events
You can get the slides here and also checkout his blog entry for more info.
These days everyone has his preferred Flex framework. Mine is still Swiz as it doesn’t impose a structure like Cairgorm or RobotLeg. I’ve also just started on a new project that uses Parsley, so I’ve soon done them all!
Enjoy!
Daniel
Daniel Wanja
HTML5, iOS and Ruby On Rails Nouvelles Solutions, Inc.
d@n-so.com
