org.eclipse.milo.opcua.sdk.client.subscriptions

Interface ManagedEventItem.EventValueListener

Enclosing class:

ManagedEventItem

public static interface ManagedEventItem.EventValueListener

A callback that receives notification of new events for a ManagedEventItem.

Method Summary

Modifier and Type	Method and Description
void	onEventValueReceived(ManagedEventItem item, org.eclipse.milo.opcua.stack.core.types.builtin.Variant[] eventValues) A new event for item has arrived.

Method Detail

onEventValueReceived

void onEventValueReceived(ManagedEventItem item,
                          org.eclipse.milo.opcua.stack.core.types.builtin.Variant[] eventValues)

A new event for item has arrived.

Take care not to block unnecessarily in this callback because subscription notifications are processed synchronously as a backpressure mechanism. Blocking inside this callback will prevent subsequent notifications from being processed and new PublishRequests from being sent.

Parameters:

item - the ManagedEventItem for which a new event has arrived.

eventValues - the new event field values.