001    /*--------------------------------------------------------------------------+
002    $Id: EAggregationStrategy.java 27961 2010-05-28 11:26:40Z deissenb $
003    |                                                                          |
004    | Copyright 2005-2010 Technische Universitaet Muenchen                     |
005    |                                                                          |
006    | Licensed under the Apache License, Version 2.0 (the "License");          |
007    | you may not use this file except in compliance with the License.         |
008    | You may obtain a copy of the License at                                  |
009    |                                                                          |
010    |    http://www.apache.org/licenses/LICENSE-2.0                            |
011    |                                                                          |
012    | Unless required by applicable law or agreed to in writing, software      |
013    | distributed under the License is distributed on an "AS IS" BASIS,        |
014    | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
015    | See the License for the specific language governing permissions and      |
016    | limitations under the License.                                           |
017    +--------------------------------------------------------------------------*/
018    package edu.tum.cs.commons.math;
019    
020    /**
021     * Enumeration for different aggregation strategies.
022     * 
023     * @author deissenb
024     * @author $Author: deissenb $
025     * @version $Rev: 27961 $
026     * @levd.rating GREEN Hash: C8D121A18760092443B22D4224237E46
027     */
028    public enum EAggregationStrategy {
029            /** Sum aggregation, see {@link SumAggregator}. */
030            SUM(new SumAggregator()),
031    
032            /** Maximum aggregation, see {@link MaxAggregator}. */
033            MAX(new MaxAggregator()),
034    
035            /** Minimum aggregation, see {@link MinAggregator}. */
036            MIN(new MinAggregator()),
037    
038            /** Mean aggregation, see {@link MeanAggregator}. */
039            MEAN(new MeanAggregator()),
040    
041            /** Median aggregation, see {@link MedianAggregator}. */
042            MEDIAN(new MedianAggregator());
043    
044            /** The aggregator used fro this strategy. */
045            private final IAggregator aggregator;
046    
047            /** Create strategy. */
048            private EAggregationStrategy(IAggregator aggregator) {
049                    this.aggregator = aggregator;
050            }
051    
052            /** Get aggregator. */
053            public IAggregator getAggregator() {
054                    return aggregator;
055            }
056    }