public override void Evaluate(
EventBean[] eventsPerStream,
ICollection <EventBean> matchingEvents,
ExprEvaluatorContext exprEvaluatorContext)
{
AggregationService.ClearResults(exprEvaluatorContext);
if (matchingEvents == null)
{
return;
}
var events = new EventBean[eventsPerStream.Length + 1];
Array.Copy(eventsPerStream, 0, events, 1, eventsPerStream.Length);
var evaluateParams = new EvaluateParams(events, true, exprEvaluatorContext);
foreach (EventBean subselectEvent in matchingEvents)
{
events[0] = subselectEvent;
var pass = (bool?)FilterExpr.Evaluate(evaluateParams);
if (pass ?? false)
{
AggregationService.ApplyEnter(events, null, exprEvaluatorContext);
}
}
}
private XPathExpr make_function(QName name, ICollection <Expr> args)
{
FunctionCall fc = new FunctionCall(name, args);
FilterExpr fe = new FilterExpr(fc, new List <Expr>());
return(new XPathExpr(0, false, fe));
}
/// <param name="e">
/// is the filter expression. </param>
/// <returns> e </returns>
public virtual object visit(FilterExpr e)
{
e.primary().accept(this);
for (IEnumerator <Expr> i = e.iterator(); i.MoveNext();)
{
i.Current.accept(this);
}
return(e);
}
/// <param name="e">
/// is the filter expression. </param>
/// <returns> e </returns>
public virtual object visit(FilterExpr e)
{
PrimaryExpr pe = (PrimaryExpr)e.primary().accept(this);
e.set_primary(pe);
printCollExprs(e.GetEnumerator());
return(e);
}
public override Object Evaluate(EventBean[] eventsPerStream, bool isNewData, ICollection <EventBean> matchingEvents, ExprEvaluatorContext exprEvaluatorContext)
{
if (matchingEvents == null)
{
return(false);
}
if (matchingEvents.Count == 0)
{
return(false);
}
if (FilterExpr == null)
{
return(true);
}
// Evaluate filter
var events = new EventBean[eventsPerStream.Length + 1];
var evaluateParams = new EvaluateParams(events, true, exprEvaluatorContext);
Array.Copy(eventsPerStream, 0, events, 1, eventsPerStream.Length);
foreach (var subselectEvent in matchingEvents)
{
// Prepare filter expression event list
events[0] = subselectEvent;
var pass = (bool?)FilterExpr.Evaluate(evaluateParams);
if ((pass != null) && (pass.Value))
{
return(true);
}
}
return(false);
}
/// <summary>
/// Validate a filter expression.
/// </summary>
/// <param name="e">
/// is the expression. </param>
/// <returns> null. </returns>
public virtual object visit(FilterExpr e)
{
e.primary().accept(this);
visitCollExprs(e.GetEnumerator());
return(null);
}
public virtual void Visit(FilterExpr expr)
{
}
public override void Visit(FilterExpr expr) => _needsAsync = true;
private XPathExpr make_xpathexpr(PrimaryExpr pex)
{
FilterExpr fe = new FilterExpr(pex, new List <Expr>());
return(new XPathExpr(0, false, fe));
}
