/*
***************************************************************************************
* 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.expression.dot;
import com.espertech.esper.client.EventBean;
import com.espertech.esper.epl.expression.core.ExprEvaluatorContext;
import com.espertech.esper.epl.rettype.EPType;
import com.espertech.esper.epl.rettype.EPTypeHelper;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.lang.reflect.Array;
public class ExprDotEvalArraySize implements ExprDotEval {
private static final Logger log = LoggerFactory.getLogger(ExprDotEvalArraySize.class);
public Object evaluate(Object target, EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext exprEvaluatorContext) {
if (target == null) {
return null;
}
return Array.getLength(target);
}
public EPType getTypeInfo() {
return EPTypeHelper.singleValue(Integer.class);
}
public void visit(ExprDotEvalVisitor visitor) {
visitor.visitArrayLength();
}
}