Re: RequestFactory in a offline Szenario?

Best thanx.  Szenario 1, would mean that you have to deal with two different sets of data structures online = entityproxies and offline something else..... or you have to develop your "own" layer above request factory.... which to avoid was the rational behind using requestfactory. 

Szenario 2 seems like a interesting approach, but i must confess i not knowlegable enough of the internals of Requestfactory to really be able to see what that means. Also for adressing the issue with the potential confict resolution this is probably not the "right" layer....

So probably you need something above RequestfFactory, which deals with a "higher level" batching and offline / online awareness etc.......  

Am Montag, 8. Oktober 2012 19:04:10 UTC+2 schrieb Jens:

I think I would store data changes locally and when the device is back online I would send everything to the server and let the server synchronize it with its server database. The server can send conflicts back to the client and then let the user choose which version of the conflicted data should be used.  So I would not store the specific requests, but only the data (along with some meta data like timestamp, isDeleted, etc.).

So its pretty much:

if(online) {

  // requestfactory

} else {

  // use local data cache

}

I am not sure if its possible to implement a custom RequestTransport for RequestFactory, e.g. OfflineRequestTransport, that parses the RF payload and executes/applies all the invocations/operations locally using a local data cache. If it would be possible you could switch to an OfflineRequestTransport as soon as you are offline and you dont need that "if(online)" block everywhere in your code.

-- J.

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