Thanks Kostya, Actually, I don't need to expose my data. I'm using a ContentProvider because I'm trying to implement the REST architecture suggested by Virgil Dobjanschi on Google I/O:
http://www.google.com/events/io/2010/sessions/developing-RESTful-android-apps.html Though, I have complex entities in a normalized database, so I need transactions in order to insert parts of a single entity on their respective tables and do some data validation (say queries) between these insert operations. Is there a better solution for that? On Nov 4, 2:42 pm, Kostya Vasilyev <[email protected]> wrote: > My two cents: don't go through your own ContentProvider unless you need to. > > Use ContentProvider for exporting data to other apps, or, within the > app, for very specific URIs that should trigger UI updates. > > For the rest of the data, that is, those db ops that don't need to > trigger UI updates, going directly to the database APIs gives better > flexibility, performance, and control (wrt. change notifications). > > -- Kostya > > 04.11.2011 20:36, Pepijn Van Eeckhoudt пишет: > > > > > > > > > > > Override ContentProvider#applyBatch, start a transaction on your > > database, apply all the operations and then commit (or rollback) the > > transaction. The default implementation delegates each operation to > > the corresponding ContentProvider method so you can probably do this as: > > > startTransaction > > try { > > super.applyBatch > > setTransactionSuccesful > > } finally { > > endTransaction > > } > > > Pepijn > > > On 03/11/2011 20:59, Flávio Faria wrote: > >> Hi guys, > > >> I have a ContentProvider in my app that wraps an SQLite database. I'm > >> wondering what is the best way to call insert(), update(), delete() > >> and query() inside a database transaction. Is it possible? Is there > >> any workaround? bulkInsert() doesn't help since it only makes insert() > >> calls. > > >> Thanks. > > -- > Kostya Vasilyev -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
