An Overview
The Data Reflection pattern keeps the web application content in sync with the database. This happens because the pattern runs in the back-end code and updates data that has changed while a user is logged in and using the application. As a typical XHR model does, the Data Reflection pattern starts with the user interface, where a user interacts with an element and the application makes a request. The major difference is that this pattern programmatically consists of JavaScript’s setTimeout method. This method continuously makes XHRs through the Ajax engine to either call a server-side language and check for database updates or to check an XML file for updates. If there are updates, the new data is returned to the Ajax callback method ...
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