public override void HandleMatching(EventBean[] triggerEvents, EventBean[] matchingEvents)
{
if (InstrumentationHelper.ENABLED)
{
InstrumentationHelper.Get().QInfraOnAction(OnTriggerType.ON_DELETE, triggerEvents, matchingEvents);
}
if ((matchingEvents != null) && (matchingEvents.Length > 0))
{
foreach (EventBean @event in matchingEvents)
{
TableStateInstance.DeleteEvent(@event);
}
// The on-delete listeners receive the events deleted, but only if there is interest
if (parent.StatementResultService.IsMakeNatural || parent.StatementResultService.IsMakeSynthetic)
{
EventBean[] posted = TableOnViewUtil.ToPublic(matchingEvents, parent.TableMetadata, triggerEvents, true, base.ExprEvaluatorContext);
UpdateChildren(posted, null);
}
}
if (InstrumentationHelper.ENABLED)
{
InstrumentationHelper.Get().AInfraOnAction();
}
}
public override void Apply(EventBean matchingEvent, EventBean[] eventsPerStream, TableStateInstance tableStateInstance, TableOnMergeViewChangeHandler changeHandlerAdded, TableOnMergeViewChangeHandler changeHandlerRemoved, ExprEvaluatorContext exprEvaluatorContext)
{
tableStateInstance.DeleteEvent(matchingEvent);
if (changeHandlerRemoved != null)
{
changeHandlerRemoved.Add(matchingEvent, eventsPerStream, false, exprEvaluatorContext);
}
}
public override EventBean[] ProcessDelete(EPPreparedExecuteIUDSingleStreamExecDelete delete)
{
ExprTableEvalLockUtil.ObtainLockUnless(_instance.TableLevelRWLock.WriteLock, delete.Services.TableService.TableExprEvaluatorContext);
if (delete.OptionalWhereClause == null)
{
_instance.ClearEvents();
}
var found = SnapshotAndApplyFilter(delete.Filter, delete.Annotations, delete.OptionalWhereClause, _instance.AgentInstanceContext);
foreach (var @event in found)
{
_instance.DeleteEvent(@event);
}
return(CollectionUtil.EVENTBEANARRAY_EMPTY);
}
public override void HandleMatching(EventBean[] triggerEvents, EventBean[] matchingEvents)
{
if (InstrumentationHelper.ENABLED)
{
InstrumentationHelper.Get().QInfraOnAction(OnTriggerType.ON_SELECT, triggerEvents, matchingEvents);
}
EventBean[] newData;
// clear state from prior results
_resultSetProcessor.Clear();
// build join result
// use linked hash set to retain order of join results for last/first/window to work most intuitively
ISet <MultiKey <EventBean> > newEvents = NamedWindowOnSelectView.BuildJoinResult(triggerEvents, matchingEvents);
// process matches
UniformPair <EventBean[]> pair = _resultSetProcessor.ProcessJoinResult(newEvents, Collections.GetEmptySet <MultiKey <EventBean> >(), false);
newData = (pair != null ? pair.First : null);
if (_parent.IsDistinct)
{
newData = EventBeanUtility.GetDistinctByProp(newData, _parent.EventBeanReader);
}
if (_parent.InternalEventRouter != null)
{
if (newData != null)
{
for (int i = 0; i < newData.Length; i++)
{
if (_audit)
{
AuditPath.AuditInsertInto(ExprEvaluatorContext.EngineURI, ExprEvaluatorContext.StatementName, newData[i]);
}
_parent.InternalEventRouter.Route(newData[i], _parent.StatementHandle, _parent.InternalEventRouteDest, ExprEvaluatorContext, false);
}
}
}
// The on-select listeners receive the events selected
if ((newData != null) && (newData.Length > 0))
{
// And post only if we have listeners/subscribers that need the data
if (_parent.StatementResultService.IsMakeNatural || _parent.StatementResultService.IsMakeSynthetic)
{
UpdateChildren(newData, null);
}
}
// clear state from prior results
_resultSetProcessor.Clear();
// Events to delete are indicated via old data
if (_deleteAndSelect)
{
foreach (EventBean @event in matchingEvents)
{
TableStateInstance.DeleteEvent(@event);
}
}
if (InstrumentationHelper.ENABLED)
{
InstrumentationHelper.Get().AInfraOnAction();
}
}