// No filter and with select clause
public virtual object Evaluate(
EventBean[] eventsPerStream,
bool newData,
ICollection <EventBean> matchingEvents,
ExprEvaluatorContext exprEvaluatorContext,
ExprSubselectRowNode parent)
{
if (matchingEvents.Count > 1)
{
Log.Warn(parent.MultirowMessage);
return(null);
}
EventBean[] events = EventBeanUtility.AllocatePerStreamShift(eventsPerStream);
events[0] = EventBeanUtility.GetNonemptyFirstEvent(matchingEvents);
object result;
if (parent.SelectClauseEvaluator.Length == 1)
{
result = parent.SelectClauseEvaluator[0].Evaluate(new EvaluateParams(events, true, exprEvaluatorContext));
}
else
{
// we are returning a Map here, not object-array, preferring the self-describing structure
result = parent.EvaluateRow(events, true, exprEvaluatorContext);
}
return(result);
}
// No filter and with select clause
public virtual EventBean EvaluateGetEventBean(EventBean[] eventsPerStream, bool newData, ICollection <EventBean> matchingEvents, ExprEvaluatorContext context, ExprSubselectRowNode parent)
{
var events = EventBeanUtility.AllocatePerStreamShift(eventsPerStream);
events[0] = EventBeanUtility.GetNonemptyFirstEvent(matchingEvents);
var row = parent.EvaluateRow(events, true, context);
return(parent.SubselectMultirowType.EventAdapterService.AdapterForTypedMap(row, parent.SubselectMultirowType.EventType));
}
// No filter and with select clause
public Object[] TypableEvaluate(EventBean[] eventsPerStream, bool isNewData, ICollection <EventBean> matchingEvents, ExprEvaluatorContext exprEvaluatorContext, ExprSubselectRowNode parent)
{
// take the first match only
var events = EventBeanUtility.AllocatePerStreamShift(eventsPerStream);
var evaluateParams = new EvaluateParams(events, isNewData, exprEvaluatorContext);
events[0] = EventBeanUtility.GetNonemptyFirstEvent(matchingEvents);
var results = new Object[parent.SelectClauseEvaluator.Length];
for (var i = 0; i < results.Length; i++)
{
results[i] = parent.SelectClauseEvaluator[i].Evaluate(evaluateParams);
}
return(results);
}
public override object Evaluate(
EventBean[] eventsPerStream,
bool newData,
ICollection <EventBean> matchingEvents,
ExprEvaluatorContext exprEvaluatorContext,
ExprSubselectRowNode parent)
{
if (matchingEvents.Count > 1)
{
Log.Warn(parent.MultirowMessage);
return(null);
}
EventBean @event = EventBeanUtility.GetNonemptyFirstEvent(matchingEvents);
return(_tableMetadata.EventToPublic.ConvertToUnd(@event, eventsPerStream, newData, exprEvaluatorContext));
}