/*
* *************************************************************************************
* Copyright (C) 2008 EsperTech, Inc. All rights reserved. *
* http://esper.codehaus.org *
* 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.expression;
import com.espertech.esper.client.EventBean;
import com.espertech.esper.client.EventType;
import com.espertech.esper.epl.enummethod.dot.ExprDotEvalTypeInfo;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import java.lang.reflect.Array;
public class ExprDotEvalArraySize implements ExprDotEval
{
private static final Log log = LogFactory.getLog(ExprDotEvalArraySize.class);
public Object evaluate(Object target, EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext exprEvaluatorContext) {
if (target == null) {
return null;
}
return Array.getLength(target);
}
public ExprDotEvalTypeInfo getTypeInfo() {
return ExprDotEvalTypeInfo.scalarOrUnderlying(Integer.class);
}
}