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

Interface AggregationMultiFunctionAgent

public interface AggregationMultiFunctionAgent

Agents change mult-function aggregation state.

Method Summary

Modifier and Type	Method and Description
void	applyEnter(EventBean[] eventsPerStream, com.espertech.esper.common.internal.epl.expression.core.ExprEvaluatorContext exprEvaluatorContext, com.espertech.esper.common.internal.epl.agg.core.AggregationRow row, int column) Enter-into (add to) an aggregation
void	applyLeave(EventBean[] eventsPerStream, com.espertech.esper.common.internal.epl.expression.core.ExprEvaluatorContext exprEvaluatorContext, com.espertech.esper.common.internal.epl.agg.core.AggregationRow row, int column) Leave-from (remove from) an aggregation

Method Detail

applyEnter

void applyEnter(EventBean[] eventsPerStream,
                com.espertech.esper.common.internal.epl.expression.core.ExprEvaluatorContext exprEvaluatorContext,
                com.espertech.esper.common.internal.epl.agg.core.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,
                com.espertech.esper.common.internal.epl.expression.core.ExprEvaluatorContext exprEvaluatorContext,
                com.espertech.esper.common.internal.epl.agg.core.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