com.espertech.esper.epl.join.base.HistoricalIndexLookupStrategyNoIndex 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

There is a newer version: 7.1.0

/*
 ***************************************************************************************
 *  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.join.base;

import com.espertech.esper.client.EventBean;
import com.espertech.esper.epl.expression.core.ExprEvaluatorContext;
import com.espertech.esper.epl.join.table.EventTable;

import java.util.Iterator;

/**
 * Full table scan strategy for a poll-based cache result.
 */
public class HistoricalIndexLookupStrategyNoIndex implements HistoricalIndexLookupStrategy {
    public HistoricalIndexLookupStrategyNoIndex() {
    }

    public Iterator lookup(EventBean lookupEvent, EventTable[] index, ExprEvaluatorContext context) {
        return index[0].iterator();
    }

    public String toQueryPlan() {
        return this.getClass().getSimpleName();
    }
}