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14:41, EET
August 13, 2013
Offline
Can i subscribe a event without a filter?
The MonitoringEventItem provides a constructor which takes only a NodeId, but i get a Exception when i try to subscribe.
com.prosysopc.ua.StatusException: Bad_MonitoredItemFilterUnsupported (0x80440000) “The server does not support the requested monitored item filter.” StatusCode=Bad_MonitoredItemFilterUnsupported (0x80440000) “The server does not support the requested monitored item filter.”
at com.prosysopc.ua.client.UaClient.a(Unknown Source)
at com.prosysopc.ua.client.Subscription.addItem(Unknown Source)
My code is:
private static void startSubscription() throws ServiceException, StatusException {
subscription = new Subscription();
client.addSubscription(subscription);
statusEventTest = new MonitoredEventItem(Properties.NODE_ID_STATUS_TEST);
subscription.addItem(statusEventTest);
}
The goal is to implement a Client which can subscribe different events with generic code.
15:34, EET
December 21, 2011
Offline
No you cannot. The filter is used to define the event fields (in the SelectClause) that you wish to listen to. So without a filter, there would not be anything to send. The WhereClause of the filter, which can limit events that are sent based on the field values, is optional.
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