I have a grid where each row is a log entry read from the server via JSON. The server continually receives log entries from other applications, and I poll the server to find out if there are new entries. Currently, though, that results in a full reload of the grid every time there's a new object. Since I have several hundred objects in my store, and often only one or two new entries on the server, it is very wasteful to re-send the full list and reload the entire store, plus it gives a bad UE because the grid grays out and freezes during the reload.
Is there a way to configure the Store to receive an incremental update, and for the grid to only parse out and append the new objects?