/*
***************************************************************************************
* 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.agg.service.AggregationRowPair;
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.event.ObjectArrayBackedEventBean;
import com.espertech.esper.metrics.instrumentation.InstrumentationHelper;
public class ExprTableExprEvaluatorMethod extends ExprTableExprEvaluatorBase implements ExprEvaluator {
private final int methodNum;
public ExprTableExprEvaluatorMethod(ExprNode exprNode, String tableName, String subpropName, int streamNum, Class returnType, int methodNum) {
super(exprNode, tableName, subpropName, streamNum, returnType);
this.methodNum = methodNum;
}
public Object evaluate(EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext context) {
if (InstrumentationHelper.ENABLED) {
InstrumentationHelper.get().qExprTableSubproperty(exprNode, tableName, subpropName);
}
ObjectArrayBackedEventBean oa = (ObjectArrayBackedEventBean) eventsPerStream[streamNum];
AggregationRowPair row = ExprTableEvalStrategyUtil.getRow(oa);
Object result = row.getMethods()[methodNum].getValue();
if (InstrumentationHelper.ENABLED) {
InstrumentationHelper.get().aExprTableSubproperty(result);
}
return result;
}
public Class getType() {
return returnType;
}
}