001/*-------------------------------------------------------------------------+
002|                                                                          |
003| Copyright 2005-2011 The ConQAT Project                                   |
004|                                                                          |
005| Licensed under the Apache License, Version 2.0 (the "License");          |
006| you may not use this file except in compliance with the License.         |
007| You may obtain a copy of the License at                                  |
008|                                                                          |
009|    http://www.apache.org/licenses/LICENSE-2.0                            |
010|                                                                          |
011| Unless required by applicable law or agreed to in writing, software      |
012| distributed under the License is distributed on an "AS IS" BASIS,        |
013| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
014| See the License for the specific language governing permissions and      |
015| limitations under the License.                                           |
016+-------------------------------------------------------------------------*/
017package org.conqat.lib.commons.math;
018
019/**
020 * Maximum aggregator.
021 * 
022 * @author deissenb
023 */
024public class MaxAggregator extends PairwiseAggregatorBase {
025
026        /** {@inheritDoc} */
027        @Override
028        protected double aggregate(double aggregate, double value) {
029                return Math.max(aggregate, value);
030        }
031
032        /** Returns {@link Double#NEGATIVE_INFINITY}. */
033        @Override
034        public double getNeutralElement() {
035                return Double.NEGATIVE_INFINITY;
036        }
037
038}