/*
***************************************************************************************
* 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.table.strategy;
import com.espertech.esper.client.EventBean;
import com.espertech.esper.epl.expression.core.ExprEvaluator;
import com.espertech.esper.epl.expression.core.ExprEvaluatorContext;
public class ExprTableEvalStrategyGroupByMethodSingle extends ExprTableEvalStrategyGroupByMethodBase {
private final ExprEvaluator groupExpr;
public ExprTableEvalStrategyGroupByMethodSingle(TableAndLockProviderGrouped provider, int index, ExprEvaluator groupExpr) {
super(provider, index);
this.groupExpr = groupExpr;
}
public Object evaluate(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext exprEvaluatorContext) {
Object groupKey = groupExpr.evaluate(eventsPerStream, isNewData, exprEvaluatorContext);
return evaluateInternal(groupKey, exprEvaluatorContext);
}
}