Package com.espertech.esper.common.client.hook.aggmultifunc

Interface AggregationMultiFunctionAgent

All Known Implementing Classes:

AggregationAgentCountMinSketch, AggregationAgentDefault, AggregationAgentDefaultWFilter, AggregationAgentRewriteStream, AggregationAgentRewriteStreamWFilter

public interface AggregationMultiFunctionAgent

Agents change mult-function aggregation state.

Field Summary

Fields

Modifier and Type	Field	Description
static final EPTypeClass	EPTYPE	Type information.

Method Summary

Modifier and Type	Method	Description
void	applyEnter(EventBean[] eventsPerStream, ExprEvaluatorContext exprEvaluatorContext, AggregationRow row, int column)	Enter-into (add to) an aggregation
void	applyLeave(EventBean[] eventsPerStream, ExprEvaluatorContext exprEvaluatorContext, AggregationRow row, int column)	Leave-from (remove from) an aggregation

Field Details

EPTYPE

static final EPTypeClass EPTYPE

Type information.

Method Details

applyEnter

void applyEnter(EventBean[] eventsPerStream,
 ExprEvaluatorContext exprEvaluatorContext,
 AggregationRow row,
 int column)

Enter-into (add to) an aggregation

Parameters:

eventsPerStream - events

exprEvaluatorContext - evaluation context

row - aggregation row

column - column assigned to the aggregation state

applyLeave

void applyLeave(EventBean[] eventsPerStream,
 ExprEvaluatorContext exprEvaluatorContext,
 AggregationRow row,
 int column)

Leave-from (remove from) an aggregation

Parameters:

eventsPerStream - events

exprEvaluatorContext - evaluation context

row - aggregation row

column - column assigned to the aggregation state