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1 /* Copyright (C) 2013 by Bundesamt fuer Strahlenschutz |
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2 * Software engineering by Intevation GmbH |
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3 * |
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4 * This file is Free Software under the GNU GPL (v>=3) |
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out |
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6 * the documentation coming with IMIS-Labordaten-Application for details. |
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7 */ |
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8 package de.intevation.lada.util.data; |
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9 |
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10 import java.math.BigDecimal; |
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11 import java.math.MathContext; |
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12 import java.math.RoundingMode; |
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13 |
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14 /** |
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15 * Utilities for calculations |
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16 * |
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17 */ |
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18 public class MathUtil { |
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19 |
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20 public static final MathContext ROUNDING_CONTEXT = new MathContext(3, |
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21 RoundingMode.HALF_EVEN); |
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22 |
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23 public static Double roundDoubleToThree(Double value) { |
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24 if (value == null) { |
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25 return null; |
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26 } |
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27 return BigDecimal.valueOf(value).round(ROUNDING_CONTEXT).doubleValue(); |
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28 } |
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29 |
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30 } |
