In my application I have an inbox. If a new message arrives I need to increment the unread count. Do I need to make the database connection for every second to find out if a new message has arrived? Are there any other methods?
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Use Comet, and load the changes when new mail comes in.
Ignacio Vazquez-Abrams
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Comet is the name given to various types of "server-push" methods that can be used to do what you are looking for. The most compatible of the comet methods is XHR Long Polling.
If you want to try out a specific comet tool, check out jquery comet, which was developed by a SO member. He discusses his plugin at another question.
