/*
* StreamCruncher: Copyright (c) 2006-2008, Ashwin Jayaprakash. All Rights Reserved.
* Contact: ashwin {dot} jayaprakash {at} gmail {dot} com
* Web: http://www.StreamCruncher.com
*
* This file is part of StreamCruncher.
*
* StreamCruncher is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* StreamCruncher is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with StreamCruncher. If not, see <http://www.gnu.org/licenses/>.
*/
package streamcruncher.innards.core.partition.aggregate.impl;
import streamcruncher.innards.core.partition.aggregate.GenericSingleSrcColumnAggregator;
/*
* Author: Ashwin Jayaprakash Date: Oct 9, 2006 Time: 10:01:51 PM
*/
public class MinAggregator extends GenericSingleSrcColumnAggregator<Comparable> {
private static final long serialVersionUID = 1L;
@Override
protected Comparable fetchAggregatedValue() {
return valuesAndCounts.firstKey();
}
/**
* Not supported. Just returns the new value!
*/
@Override
protected Comparable doDiff(Comparable oldValue, Comparable newValue) {
return newValue;
}
}