Hi Chuck and all other responders,
Am 26.10.2005 17:06 Uhr schrieb "Chuck Hill" unter <[EMAIL PROTECTED]>: > > On Oct 26, 2005, at 5:13 AM, Wolfram Stebel wrote: ... As a result of all mails, i removed JMS and ERChangeNotification very fast from my project. >> But thats a minor reason! > > See David's comment, "If you ever use a lot of instances it will slow > down everything". This might not be the best way to get you where > you want to go. JMS was announced to be fast... >> 2. I have 3 Applications working on the same database, i.e. they might >> change the same data entries concurrently. > > So deal with it. This framework will _not_ eliminate the need to > handle concurrent editing issues. It will just _reduce_ the > frequency of occurrence. ChangeNotification framework or not, you > still have to code for these. I have one critical point in the moment, which i reprogrammed now. I thougt of a general and final solution, but it seems to be a little, eeeeh, optimistic (locking)... > ... >> locations. When those change, the customer needs direct feedback of >> the >> change. > > What does direct feedback mean? They need a message to popup? An e- > mail? Or just that they need to see fresh data. Data should be updated in the second application, so that a refresh in the browser will reflect the change... For now i have to re-login, thats semi-optimal. >> 3. I asked on this list how to handle this issue, and i was told to >> do what >> i'm now implementing. >> >> So, what other tips do you have? >> > > 1. Implement code to handle optimistic locking failures So, why turn optimistic locking into pessimistic? > 2. Determine the data freshness requirements and implement refreshing > fetches and new EC creation to meet those needs. Normaly i (re)fetch depending on current application state, but some basic data like a logged in client and person... Thanks to all of you. Wolfram _______________________________________________ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list (Webobjects-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to archive@mail-archive.com
