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 Object
implements ExprPreviousEvalStrategy

Constructor Summary

Constructors

Constructor and Description
ExprPreviousEvalStrategyCount(int streamNumber, RandomAccessByIndexGetter randomAccessGetter, RelativeAccessByEventNIndexGetter relativeAccessGetter)

Method Summary

Modifier and Type	Method and Description
Object	evaluate(EventBean[] eventsPerStream, ExprEvaluatorContext exprEvaluatorContext)
Collection<EventBean>	evaluateGetCollEvents(EventBean[] eventsPerStream, ExprEvaluatorContext context)
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,
                                     RelativeAccessByEventNIndexGetter relativeAccessGetter)

Method Detail

evaluate

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

Specified by:

evaluate in interface ExprPreviousEvalStrategy

evaluateGetCollEvents

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

Specified by:

evaluateGetCollEvents in interface ExprPreviousEvalStrategy

evaluateGetCollScalar

public 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