/*
***************************************************************************************
* Copyright (C) 2006 EsperTech, Inc. All rights reserved. *
* http://www.espertech.com/esper *
* http://www.espertech.com *
* ---------------------------------------------------------------------------------- *
* The software in this package is published under the terms of the GPL license *
* a copy of which has been included with this distribution in the license.txt file. *
***************************************************************************************
*/
package com.espertech.esper.regression.client;
import com.espertech.esper.client.EventBean;
import com.espertech.esper.epl.agg.access.AggregationState;
import com.espertech.esper.epl.expression.core.ExprEvaluatorContext;
public class SupportAggMFStateCollScalar implements AggregationState {
private EventBean event;
public void applyEnter(EventBean[] eventsPerStream, ExprEvaluatorContext exprEvaluatorContext) {
event = eventsPerStream[0];
}
public void applyLeave(EventBean[] eventsPerStream, ExprEvaluatorContext exprEvaluatorContext) {
// ever semantics
}
public void clear() {
event = null;
}
public int size() {
return event == null ? 0 : 1;
}
public EventBean getEvent() {
return event;
}
}