Package com.espertech.esper.common.internal.epl.expression.prior

Interface PriorEvalStrategy

All Known Subinterfaces:

AIRegistryPriorEvalStrategy

All Known Implementing Classes:

AIRegistryPriorEvalStrategyMap, AIRegistryPriorEvalStrategyMultiPerm, AIRegistryPriorEvalStrategySingle, ExprPriorEvalStrategyRandomAccess, ExprPriorEvalStrategyRelativeAccess

public interface PriorEvalStrategy

Represents the 'prior' prior event resolution strategy for use in an expression node tree.

Field Summary

Fields

Modifier and Type	Field	Description
static final PriorEvalStrategy[]	EMPTY_ARRAY
static final EPTypeClass	EPTYPE

Method Summary

Modifier and Type	Method	Description
EventBean	getSubstituteEvent(EventBean originalEvent, boolean isNewData, int constantIndexNumber, int relativeIndex, ExprEvaluatorContext exprEvaluatorContext, int streamNum)

Field Details

EPTYPE

static final EPTypeClass EPTYPE

EMPTY_ARRAY

static final PriorEvalStrategy[] EMPTY_ARRAY

Method Details

getSubstituteEvent

EventBean getSubstituteEvent(EventBean originalEvent,
 boolean isNewData,
 int constantIndexNumber,
 int relativeIndex,
 ExprEvaluatorContext exprEvaluatorContext,
 int streamNum)