/*
* *************************************************************************************
* 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.enummethod.eval;
import com.espertech.esper.client.EventBean;
import com.espertech.esper.epl.expression.ExprEvaluator;
import com.espertech.esper.epl.expression.ExprEvaluatorContext;
import com.espertech.esper.event.arr.ObjectArrayEventBean;
import com.espertech.esper.event.arr.ObjectArrayEventType;
import java.util.Collection;
public class EnumEvalCountOfSelectorScalar extends EnumEvalBaseScalar implements EnumEval {
public EnumEvalCountOfSelectorScalar(ExprEvaluator innerExpression, int streamCountIncoming, ObjectArrayEventType type) {
super(innerExpression, streamCountIncoming, type);
}
public Object evaluateEnumMethod(EventBean[] eventsLambda, Collection target, boolean isNewData, ExprEvaluatorContext context) {
int count = 0;
ObjectArrayEventBean evalEvent = new ObjectArrayEventBean(new Object[1], type);
for (Object next : target) {
evalEvent.getProperties()[0] = next;
eventsLambda[streamNumLambda] = evalEvent;
Object pass = innerExpression.evaluate(eventsLambda, isNewData, context);
if (pass == null || (!(Boolean) pass)) {
continue;
}
count++;
}
return count;
}
}