Hi all. I'm currently in the process of rewriting an old java system, replacing it with a Cayenne-powered web app. While we're doing the rewrite, the two systems need to run side-by-side, with users using both equally. As you might have guessed, this is causing some real problems with stale/missing data in the Cayenne stack.
I know I can perform explicit fetching with prefetches to refresh select data—but I have no idea when data might be stale, and I'd prefer not having to perform every fetch, every time, but rather just write this asuming it's a single, regular application (as it will eventually be). I'm basically looking for general advice; if anyone has experience and would like to share strategies or workarounds for a frequently changing DB. One specific question: Would there be a way for me to tell the Cayenne stack that it's world view is now essentially stale, dump all of the cache and start fresh? This would be a very acceptable workaround for many of the problem cases. Cheers, - hugi
