+1 On Fri, Nov 4, 2011 at 9:19 AM, Caleb James DeLisle <[email protected]> wrote: > We need a way for subservient stores such as FS attachments to get > transactions from the main store so that it can know to rollback if there is > an error in the main store. > In order to Cloud/DataNucleus store plug in seamlessly and function with FS > attachments, FS attachments needs to be able to get transactions from the > main store without knowing or caring what that main store is. > I propose this: > Add a new storage submodule: xwiki-platform-store-transactionprovider which > provides this interface which extends javax.inject.Provider: > > @ComponentRole > public interface XWikiTransactionProvider > extends Provider<StartableTransactionRunnable<? extends XWikiTransaction>> > { > // No additional functions, just the get() from Provider. > } > > The default implementation for now will be a wrapper which picks out the real > TransactionProvider based on what the main store is, as defined in xwiki.cfg. > This will allow code to get a transaction from the main store then get > TransactionRunnables from the main store and use them with this transaction > and be assured > that you won't be using a Hibernate TransactionRunnable with a Cassandra > Transaction. > > WDYT? > > Caleb > > _______________________________________________ > devs mailing list > [email protected] > http://lists.xwiki.org/mailman/listinfo/devs >
-- Thomas Mortagne _______________________________________________ devs mailing list [email protected] http://lists.xwiki.org/mailman/listinfo/devs
