/*
***************************************************************************************
* 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.epl.subquery;
import com.espertech.esper.client.EventBean;
import com.espertech.esper.epl.agg.service.AggregationService;
import com.espertech.esper.epl.expression.core.ExprEvaluator;
import com.espertech.esper.epl.expression.core.ExprEvaluatorContext;
import com.espertech.esper.epl.expression.core.ExprNode;
import com.espertech.esper.metrics.instrumentation.InstrumentationHelper;
public class SubselectAggregatorViewFilteredGrouped extends SubselectAggregatorViewBase {
private final ExprNode filterExprNode;
public SubselectAggregatorViewFilteredGrouped(AggregationService aggregationService, ExprEvaluator optionalFilterExpr, ExprEvaluatorContext exprEvaluatorContext, ExprEvaluator[] groupKeys, ExprNode filterExprNode) {
super(aggregationService, optionalFilterExpr, exprEvaluatorContext, groupKeys);
this.filterExprNode = filterExprNode;
}
public void update(EventBean[] newData, EventBean[] oldData) {
if (InstrumentationHelper.ENABLED) {
InstrumentationHelper.get().qSubselectAggregation(filterExprNode);
}
if (newData != null) {
for (EventBean theEvent : newData) {
eventsPerStream[0] = theEvent;
boolean isPass = filter(true);
if (isPass) {
Object groupKey = generateGroupKey(true);
aggregationService.applyEnter(eventsPerStream, groupKey, exprEvaluatorContext);
}
}
}
if (oldData != null) {
for (EventBean theEvent : oldData) {
eventsPerStream[0] = theEvent;
boolean isPass = filter(false);
if (isPass) {
Object groupKey = generateGroupKey(false);
aggregationService.applyLeave(eventsPerStream, groupKey, exprEvaluatorContext);
}
}
}
if (InstrumentationHelper.ENABLED) {
InstrumentationHelper.get().aSubselectAggregation();
}
}
}