By Cliff Hall
Gain hands-on event with PureMVC, the preferred open resource framework for constructing maintainable purposes with a Model-View-Controller structure. during this concise consultant, PureMVC author Cliff corridor teaches the basics of PureMVC improvement by means of jogging you thru the development of a whole non-trivial Adobe AIR application.
Through transparent factors and diverse ActionScript code examples, you’ll research top practices for utilizing the framework’s sessions on your daily paintings. become aware of how PureMVC allows you to concentrate on the aim and scope of your program, whereas the framework looks after the plumbing in a maintainable and transportable way.
- Get an in depth assessment of the PureMVC procedure for constructing your application
- Model the area via designing the schema and growing framework-agnostic price objects
- Implement framework-agnostic View elements that reveal an API of occasions and properties
- Use the Proxy development to maintain tune of worth gadgets and conceal carrier interaction
- Facilitate two-way communique among a View part and the remainder of the application
- Stitch the version and consider ranges including command gadgets within the Controller
- Manage complex View part existence cycles, and how you can reuse the version tier
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Also it would be nice if they could both be visible at the same time, so that you could navigate and edit the metadata about the currently selected item and then easily move to the next item to edit. We should be able to delete or reorder the items with their siblings (easily swap Chapter 3 with Chapters 2 or 4). We will save the actual deleting and reordering functionality until the next iteration, but the interface should be present. One of the things about the current process of writing on a tablet is that I can break free of the confines of the office to do it (as I am doing with much of the book you are reading).
It is also possible for one Proxy to collaborate with another to maintain the integrity of separately managed but related data, thus reducing the complexity of the individual Proxys. Consider an InvoiceProxy that talks to a remote service for storing, retrieving, and updating InvoiceVO objects in the database on the server. The Proxy exposes methods Building from the Outside In | 35 such as createInvoice, saveInvoice, deleteInvoice, findInvoiceByID, that are called by Commands, Mediators, and other Proxys as need be.
Figure 1-2 shows those common classes packaged within a structure whose first division ensures everything in the system is conceptually sorted according to MVC. Despite being simple enough to build quickly by hand, this structure is extremely extensible. components package to any depth you like to cordon off the user interface elements of your various subsystems. vo package. Maintaining the MVC separation as your central organizing principle also helps you to separate your code into libraries (or combine multiple libraries) with confidence that your packaging 16 | Chapter 1: Introduction Figure 1-2.