com.espertech.esper.epl.named.NamedWindowOnMergeActionUpd Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of esper Show documentation

Complex event processing and event series analysis component

The newest version!

/*
 ***************************************************************************************
 *  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.named;

import com.espertech.esper.client.EventBean;
import com.espertech.esper.collection.OneEventCollection;
import com.espertech.esper.epl.expression.core.ExprEvaluator;
import com.espertech.esper.epl.expression.core.ExprEvaluatorContext;
import com.espertech.esper.epl.updatehelper.EventBeanUpdateHelper;

public class NamedWindowOnMergeActionUpd extends NamedWindowOnMergeAction {
    private final EventBeanUpdateHelper updateHelper;

    public NamedWindowOnMergeActionUpd(ExprEvaluator optionalFilter, EventBeanUpdateHelper updateHelper) {
        super(optionalFilter);
        this.updateHelper = updateHelper;
    }

    public void apply(EventBean matchingEvent, EventBean[] eventsPerStream, OneEventCollection newData, OneEventCollection oldData, ExprEvaluatorContext exprEvaluatorContext) {
        EventBean copy = updateHelper.updateWCopy(matchingEvent, eventsPerStream, exprEvaluatorContext);
        newData.add(copy);
        oldData.add(matchingEvent);
    }

    public String getName() {
        return "update";
    }
}