com.espertech.esper.epl.expression.subquery

Class SubselectEvalStrategyNRExistsWGroupBy

java.lang.Object

com.espertech.esper.epl.expression.subquery.SubselectEvalStrategyNRExistsWGroupBy

All Implemented Interfaces:

SubselectEvalStrategyNR

public class SubselectEvalStrategyNRExistsWGroupBy
extends Object
implements SubselectEvalStrategyNR

Field Summary

Fields

Modifier and Type	Field and Description
static SubselectEvalStrategyNRExistsWGroupBy	INSTANCE

Method Summary

Modifier and Type	Method and Description
Object	evaluate(EventBean[] eventsPerStream, boolean isNewData, Collection<EventBean> matchingEvents, ExprEvaluatorContext exprEvaluatorContext, AggregationService aggregationService) Evaluate.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

INSTANCE

public static final SubselectEvalStrategyNRExistsWGroupBy INSTANCE

Method Detail

evaluate

public Object evaluate(EventBean[] eventsPerStream,
                       boolean isNewData,
                       Collection<EventBean> matchingEvents,
                       ExprEvaluatorContext exprEvaluatorContext,
                       AggregationService aggregationService)

Description copied from interface: SubselectEvalStrategyNR

Evaluate.

Specified by:

evaluate in interface SubselectEvalStrategyNR

Parameters:

eventsPerStream - events per stream

isNewData - true for new data

matchingEvents - prefiltered events

exprEvaluatorContext - expression evaluation context

aggregationService - aggregation service or null if none

Returns:

eval result