On Sat, Nov 5, 2011 at 10:13 AM, Kostya Vasilyev <kmans...@gmail.com> wrote: > 2) Serve data to the UI via a CP, to leverage Android's notificaitons. > Nothing changes here, no need for broadcast receivers. Perform other > operations bypassing the CP, dealing directly with the DB.
Um, I'm not sure how that works. If you insert a row in the DB directly, the CP will not be notified via the ContentObserver. > Another thought is this: a CP URI doesn't have to be mapped one to one to a > particular table. A CP implementation can work with multiple tables inside a > single ContentResolver.<insert/update/query/delete>() call made by a client, > and can wrap them in a DB transaction. > > So that's another path to take, if you really want to always access all your > data through a CP: put the logic of mapping between logical entires and > tables inside the CP, treating CP operations as dealing with logical > entities rather than tables. In this respect, using a CP is not too dissimilar from creating a REST-based server. Just as the REST URL patterns may not line up 1-to-1 with tables, the CP Uri patterns do not have to line up 1-to-1 with tables. CPs are not as flexible, though, since you're stuck with a flat ContentValues as your data structure. Also, if you use content providers, be sure to mark your ContentProvider as *NOT EXPORTED* in the manifest (android:exported="false"), as it is exported by default, meaning your data is wide open for anyone to access and manipulate. -- Mark Murphy (a Commons Guy) http://commonsware.com | http://github.com/commonsguy http://commonsware.com/blog | http://twitter.com/commonsguy Warescription: Three Android Books, Plus Updates, One Low Price! -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
