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SQL Anywhere 11.0.1 » MobiLink - Server-Initiated Synchronization » Setting up server-initiated synchronization


Light weight pollers

A light weight poller is a device application that polls for push notifications at a specified time interval. Using a light weight poller is an alternative to setting up a gateway, and is recommended because it does not require a persistent connection to the server like the SYNC gateway does, nor does it require a continuous connection like the UDP gateway does.

When a device polls the server, it sends a poll key and a Notifier name. The MobiLink server checks the Notifier name to determine which Notifier should check the cache for push requests. The poll key identifies the device to the Notifier, which uses the poll key to detect push requests intended for the device. Push notifications are sent after the push requests are detected.

Use Listener command line options to configure a light weight poller. Alternatively, use the light weight polling API to integrate a light weight poller into your device application.


Light weight polling is not supported on Palm devices. To retrieve push notifications, you must configure a gateway. See Gateways and carriers.

See also

Light weight polling API