Mercurial > dive4elements > river
annotate flys-backend/src/main/java/de/intevation/flys/importer/IdValueKey.java @ 500:d50cd3a632e0
Importer: Use BigDecimals in hashing to prevent numerical problems. Cache ranges globally, too.
flys-backend/trunk@1854 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Sascha L. Teichmann <sascha.teichmann@intevation.de> |
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date | Sun, 08 May 2011 22:41:07 +0000 |
parents | 8ab04de0b879 |
children | 04d449f7f0c9 |
rev | line source |
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Importer: Cache the discharge table values, too.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents:
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1 package de.intevation.flys.importer; |
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Importer: Cache the discharge table values, too.
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2 |
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3 import de.intevation.flys.model.WstColumnValue; |
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4 import de.intevation.flys.model.DischargeTableValue; |
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5 import de.intevation.flys.model.Range; |
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6 |
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Importer: Use BigDecimals in hashing to prevent numerical problems. Cache ranges globally, too.
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7 import java.math.BigDecimal; |
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8 |
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9 public class IdValueKey { |
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10 |
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Importer: Use BigDecimals in hashing to prevent numerical problems. Cache ranges globally, too.
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11 protected int id; |
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12 protected BigDecimal a; |
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13 protected BigDecimal b; |
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14 |
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15 |
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parents:
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16 public IdValueKey(WstColumnValue value) { |
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17 this.id = value.getWstColumn().getId(); |
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18 this.a = value.getPosition(); |
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19 this.b = value.getW(); |
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20 } |
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Importer: Cache the discharge table values, too.
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parents:
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21 |
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22 public IdValueKey(DischargeTableValue value) { |
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23 this.id = value.getDischargeTable().getId(); |
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24 this.a = value.getQ(); |
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25 this.b = value.getW(); |
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Importer: Use BigDecimals in hashing to prevent numerical problems. Cache ranges globally, too.
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26 } |
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Importer: Use BigDecimals in hashing to prevent numerical problems. Cache ranges globally, too.
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27 |
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28 public IdValueKey(Range value) { |
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29 this.id = value.getRiver().getId(); |
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30 this.a = value.getA(); |
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31 this.b = value.getB(); |
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32 } |
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33 |
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34 |
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35 public IdValueKey(int id, BigDecimal a, BigDecimal b) { |
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36 this.id = id; |
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parents:
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37 this.a = a; |
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38 this.b = b; |
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parents:
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39 } |
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parents:
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40 |
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41 private static final int hashCode(BigDecimal d) { |
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42 return d != null ? d.hashCode() : 0; |
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43 } |
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parents:
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44 |
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45 public int hashCode() { |
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46 return id | (hashCode(a) << 10) | (hashCode(b) << 20); |
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47 } |
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48 |
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49 |
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50 public boolean equals(Object obj) { |
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51 if (!(obj instanceof IdValueKey)) { |
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52 return false; |
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53 } |
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54 |
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55 IdValueKey other = (IdValueKey) obj; |
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56 |
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57 return !((id != other.id) |
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58 || (a == null && other.a != null) |
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59 || (a != null && other.a == null) |
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60 || (a != null && !a.equals(other)) |
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Importer: Use BigDecimals in hashing to prevent numerical problems. Cache ranges globally, too.
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61 || (b == null && other.b != null) |
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62 || (b != null && other.b == null) |
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63 || (b != null && !b.equals(other))); |
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64 } |
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65 } |
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66 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |