- Database Change Notification Listener Implementation. Oracle DB could notify client, when table data changes. Data could be changed by third party process or by different client session. Notification implementation is important, when we want to inform client about changes in the data, without manual re-query. I had a post about ADS (Active Data Service), where notifications were received from DB through change notification listener - Practical Example for ADF Active Data Service. Now I would like to focus on change notification listener, because it can be used in ADF not only with ADS, but also with WebSockets. ADF BC is using change notification to reload VO, when configured for auto refresh - Auto Refresh for ADF BC Cached LOV.
- Download - WebSocketReusableApp.zip
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