/*
* *************************************************************************************
* 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.dot;
import com.espertech.esper.client.EventBean;
import com.espertech.esper.client.EventType;
import com.espertech.esper.collection.EventUnderlyingCollection;
import com.espertech.esper.epl.expression.ExprDotEval;
import com.espertech.esper.epl.expression.ExprEvaluatorContext;
import java.util.Collection;
public class ExprDotEvalUnpackCollEventBean implements ExprDotEval {
private ExprDotEvalTypeInfo typeInfo;
public ExprDotEvalUnpackCollEventBean(EventType type) {
typeInfo = ExprDotEvalTypeInfo.componentColl(type.getUnderlyingType());
}
public Object evaluate(Object target, EventBean[] eventsPerStream, boolean isNewData, ExprEvaluatorContext exprEvaluatorContext) {
if (target == null) {
return null;
}
Collection<EventBean> it = (Collection<EventBean>) target;
return new EventUnderlyingCollection(it);
}
public ExprDotEvalTypeInfo getTypeInfo() {
return typeInfo;
}
}