public override void Apply(
EventBean matchingEvent,
EventBean[] eventsPerStream,
TableInstance tableStateInstance,
OnExprViewTableChangeHandler changeHandlerAdded,
OnExprViewTableChangeHandler changeHandlerRemoved,
AgentInstanceContext agentInstanceContext)
{
tableStateInstance.DeleteEvent(matchingEvent);
changeHandlerRemoved?.Add(matchingEvent, eventsPerStream, false, agentInstanceContext);
}
public override EventBean[] ProcessDelete(FAFQueryMethodIUDDelete delete)
{
TableEvalLockUtil.ObtainLockUnless(
instance.TableLevelRWLock.WriteLock,
instance.AgentInstanceContext.TableExprEvaluatorContext);
if (delete.OptionalWhereClause == null) {
instance.ClearInstance();
return CollectionUtil.EVENTBEANARRAY_EMPTY;
}
var found = SnapshotAndApplyFilter(
delete.QueryGraph,
delete.Annotations,
delete.OptionalWhereClause,
instance.AgentInstanceContext);
foreach (var @event in found) {
instance.DeleteEvent(@event);
}
return CollectionUtil.EVENTBEANARRAY_EMPTY;
}