/// <summary>
/// Gets a list of nodes from the cacheDB and subscribes to opc-server change for all of them.
/// The OPC-server notifies that a monitored item has changed value/status, when this happen
/// an "Notification" event is fired on the client side. This method register the "OnNotification"
/// event handler of all the added IOPCconnect interface to the service manager. For each item change
/// all the event handlers are invoked, there is no filter currently.
/// </summary>
public void subscribeOpcNodes()
{
var nodes = db.getDbNodes();
logger.Info("Number of selected nodes: " + nodes.Count);
opc.subscribe(nodes, collectOnNotificationEventHandlers());
}
/// <summary>
/// Gets a list of nodes from the cacheDB and subscribes to opc-server change for all of them.
/// The OPC-server notifies that a monitored item has changed value/status, when this happen
/// an "Notification" event is fired on the client side. This method register the "OnNotification"
/// event handler of all the added IOPCconnect interface to the service manager. For each item change
/// all the event handlers are invoked, there is no filter currently.
/// </summary>
public void subscribeOpcNodes()
{
opc.subscribe(db.getDbNodes(), collectOnNotificationEventHandlers());
}