com.espertech.esper.epl.expression.prev
Class ExprPreviousEvalStrategyCount

java.lang.Object
  com.espertech.esper.epl.expression.prev.ExprPreviousEvalStrategyCount

All Implemented Interfaces:

ExprPreviousEvalStrategy

public class ExprPreviousEvalStrategyCount
extends java.lang.Object
implements ExprPreviousEvalStrategy

Constructor Summary

ExprPreviousEvalStrategyCount(int streamNumber, RandomAccessByIndexGetter randomAccessGetter, RelativeAccessByEventNIndexMap relativeAccessGetter)

Method Summary

java.lang.Object	evaluate(EventBean[] eventsPerStream, ExprEvaluatorContext exprEvaluatorContext)
java.util.Collection<EventBean>	evaluateGetCollEvents(EventBean[] eventsPerStream, ExprEvaluatorContext context)
java.util.Collection	evaluateGetCollScalar(EventBean[] eventsPerStream, ExprEvaluatorContext context)
EventBean	evaluateGetEventBean(EventBean[] eventsPerStream, ExprEvaluatorContext context)

Methods inherited from class java.lang.Object

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

Constructor Detail

ExprPreviousEvalStrategyCount

public ExprPreviousEvalStrategyCount(int streamNumber,
                                     RandomAccessByIndexGetter randomAccessGetter,
                                     RelativeAccessByEventNIndexMap relativeAccessGetter)

Method Detail

evaluate

public java.lang.Object evaluate(EventBean[] eventsPerStream,
                                 ExprEvaluatorContext exprEvaluatorContext)

Specified by:

evaluate in interface ExprPreviousEvalStrategy

evaluateGetCollEvents

public java.util.Collection<EventBean> evaluateGetCollEvents(EventBean[] eventsPerStream,
                                                             ExprEvaluatorContext context)

Specified by:

evaluateGetCollEvents in interface ExprPreviousEvalStrategy

evaluateGetCollScalar

public java.util.Collection evaluateGetCollScalar(EventBean[] eventsPerStream,
                                                  ExprEvaluatorContext context)

Specified by:

evaluateGetCollScalar in interface ExprPreviousEvalStrategy

evaluateGetEventBean

public EventBean evaluateGetEventBean(EventBean[] eventsPerStream,
                                      ExprEvaluatorContext context)

Specified by:

evaluateGetEventBean in interface ExprPreviousEvalStrategy