AIR 2 - Data Persistence?

what is the best way to include data persistence in an AIR 2 application?

is it creating your own read/write file wit开发者_Go百科h flash.filesystem, or is there a new way with AIR 2?

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it seems that adobe wrote a library for saving preferences in AIR years ago, but have never added it to the official library? now i'm curious why they would not have done so, since data persistance is key for desktop applications.

adobe's AIR Preferences library ("as3preferenceslib"), consisting of 3 classes, can be found on Google Code here. i've created a .SWC using these files and added them to my AIR 2 library.

a class written by Jonnie Spratley showing how to use adobe's as3preferenceslib can be found here.