Mercurial > dive4elements > river
annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/minfo/BedHeightFactory.java @ 7013:998a9710007e
issue1465: Do not allow null ranges for fraction values, logger.error instead.
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Fri, 13 Sep 2013 16:07:46 +0200 |
parents | 4ac054834294 |
children | fe32a7f9655e |
rev | line source |
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River artifacts: Added new copyright headers.
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1 /* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde |
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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 AGPL (>=v3) |
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5 * and comes with ABSOLUTELY NO WARRANTY! Check out the |
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6 * documentation coming with Dive4Elements River for details. |
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7 */ |
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8 |
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9 package org.dive4elements.river.artifacts.model.minfo; |
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10 |
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11 |
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12 import java.util.Date; |
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13 import java.util.List; |
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14 |
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15 import net.sf.ehcache.Cache; |
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16 import net.sf.ehcache.Element; |
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17 |
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18 import org.apache.log4j.Logger; |
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19 import org.hibernate.SQLQuery; |
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20 import org.hibernate.Session; |
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21 import org.hibernate.type.StandardBasicTypes; |
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22 |
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23 import org.dive4elements.river.artifacts.cache.CacheFactory; |
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24 import org.dive4elements.river.artifacts.model.StaticBedHeightCacheKey; |
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25 import org.dive4elements.river.backend.SessionHolder; |
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26 |
6765 | 27 |
28 /** Create BedHeights from database. */ | |
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29 public class BedHeightFactory { |
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30 /** Private logger to use here. */ |
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31 private static Logger log = Logger.getLogger(BedHeightFactory.class); |
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32 |
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33 /** Query to get km and ws for wst_id and column_pos. */ |
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34 public static final String SQL_SELECT_SINGLE = |
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35 "SELECT bhsv.height, bhsv.station, bhsv.data_gap, bhsv.sounding_width, bhs.year " + |
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36 " FROM bed_height_single bhs" + |
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37 " JOIN bed_height_single_values bhsv on bhsv.bed_height_single_id = bhs.id" + |
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38 " WHERE bhs.id = :height_id" + |
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39 " ORDER BY bhsv.station"; |
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40 |
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41 |
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42 /** Query to get name for wst_id and column_pos. */ |
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43 public static final String SQL_SELECT_EPOCH = |
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44 "SELECT bv.height, bv.station, ti.start_time, ti.stop_time" + |
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45 " FROM bed_height_epoch b" + |
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46 " JOIN bed_height_epoch_values bv ON b.id = bv.bed_height_epoch_id" + |
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47 " JOIN time_intervals ti ON b.time_interval_id = ti.id" + |
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48 " WHERE b.id = :height_id" + |
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49 " ORDER BY bhsv.station"; |
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50 |
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51 /** Query to get name (description) for wst_id. */ |
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52 public static final String SQL_SELECT_DESCR_SINGLE = |
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53 "SELECT description FROM bed_height_single "+ |
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54 "WHERE id = :height_id"; |
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55 |
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56 /** Query to get name (description) for wst_id. */ |
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57 public static final String SQL_SELECT_DESCR_EPOCH = |
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58 "SELECT description from bed_height_epoch "+ |
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59 "WHERE id = :height_id"; |
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60 |
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61 |
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62 private BedHeightFactory() { |
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63 } |
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64 |
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65 |
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66 /** |
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67 * Get BedHeight for given type and height_id, caring about the cache. |
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68 */ |
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69 public static BedHeight getHeight(String type, int height_id, int time) { |
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70 log.debug("BedHeightFactory.getHeight"); |
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71 Cache cache = CacheFactory.getCache(StaticBedHeightCacheKey.CACHE_NAME); |
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72 |
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73 StaticBedHeightCacheKey cacheKey; |
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74 |
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75 if (cache != null) { |
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76 cacheKey = new StaticBedHeightCacheKey(height_id, time); |
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77 Element element = cache.get(cacheKey); |
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78 if (element != null) { |
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79 log.debug("Got static bedheight values from cache"); |
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80 return (BedHeight)element.getValue(); |
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81 } |
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82 } |
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83 else { |
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84 cacheKey = null; |
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85 } |
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86 |
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87 BedHeight values = getBedHeightUncached(type, height_id, time); |
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88 |
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89 if (values != null && cacheKey != null) { |
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90 log.debug("Store static bed height values in cache."); |
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91 Element element = new Element(cacheKey, values); |
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92 cache.put(element); |
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93 } |
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94 return values; |
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95 } |
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96 |
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97 /** Get name for a BedHeight. */ |
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98 public static String getHeightName(String type, int height_id) { |
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99 log.debug("BedHeightFactory.getHeightName height_id/" + height_id); |
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100 |
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101 String name = null; |
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102 Session session = SessionHolder.HOLDER.get(); |
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103 |
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104 SQLQuery nameQuery = null; |
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105 if (type.equals("single")) { |
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106 nameQuery = session.createSQLQuery(SQL_SELECT_DESCR_SINGLE) |
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107 .addScalar("description", StandardBasicTypes.STRING); |
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108 nameQuery.setInteger("height_id", height_id); |
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109 } |
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110 else if (type.equals("epoch")) { |
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111 nameQuery = session.createSQLQuery(SQL_SELECT_DESCR_EPOCH) |
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112 .addScalar("description", StandardBasicTypes.STRING); |
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113 nameQuery.setInteger("height_id", height_id); |
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114 } |
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115 else { |
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116 return "none"; |
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117 } |
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118 List<String> names = nameQuery.list(); |
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119 if (!names.isEmpty()) { |
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120 name = names.get(0); |
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121 } |
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122 |
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123 return name; |
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124 } |
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125 |
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126 |
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127 /** |
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128 * Get BedHeight from db. |
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129 * @param height_id database id of the bed_height |
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130 * @return according BedHeight. |
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131 */ |
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132 public static BedHeight getBedHeightUncached( |
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133 String type, |
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134 int height_id, |
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135 int time) |
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136 { |
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137 if (log.isDebugEnabled()) { |
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138 log.debug("BedHeightFactory.getBedHeightUncached"); |
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139 } |
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140 |
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141 Session session = SessionHolder.HOLDER.get(); |
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142 SQLQuery sqlQuery = null; |
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143 if (type.equals("single")) { |
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144 BedHeightSingle height = |
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145 new BedHeightSingle(getHeightName(type, height_id)); |
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146 sqlQuery = session.createSQLQuery(SQL_SELECT_SINGLE) |
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147 .addScalar("height", StandardBasicTypes.DOUBLE) |
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148 .addScalar("station", StandardBasicTypes.DOUBLE) |
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149 .addScalar("data_gap", StandardBasicTypes.DOUBLE) |
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150 .addScalar("sounding_width", StandardBasicTypes.DOUBLE) |
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151 .addScalar("year", StandardBasicTypes.INTEGER); |
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152 sqlQuery.setInteger("height_id", height_id); |
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153 List<Object []> results = sqlQuery.list(); |
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154 |
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155 for (int i = 0; i < results.size(); i++) { |
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156 Object[] row = results.get(i); |
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157 log.debug("got station: " + (Double)row[1]); |
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158 Double row0 = row[0] != null ? (Double)row[0] : Double.NaN; |
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159 Double row1 = row[1] != null ? (Double)row[1] : Double.NaN; |
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160 Double row2 = row[2] != null ? (Double)row[2] : Double.NaN; |
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161 Double row3 = row[3] != null ? (Double)row[3] : Double.NaN; |
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162 height.add(row0, row1, row2, row3, (Integer) row[4]); |
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163 } |
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164 return height; |
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165 } |
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166 else if (type.equals("epoch")) { |
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167 BedHeightEpoch height = |
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168 new BedHeightEpoch(getHeightName(type, height_id)); |
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169 sqlQuery = session.createSQLQuery(SQL_SELECT_EPOCH) |
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170 .addScalar("height", StandardBasicTypes.DOUBLE) |
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171 .addScalar("station", StandardBasicTypes.DOUBLE) |
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172 .addScalar("start_time", StandardBasicTypes.DATE) |
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173 .addScalar("stop_time", StandardBasicTypes.DATE); |
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174 sqlQuery.setInteger("height_id", height_id); |
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175 List<Object []> results = sqlQuery.list(); |
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176 |
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177 for (Object [] row: results) { |
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178 height.add( |
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179 (Double) row[0], |
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180 (Double) row[1], |
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181 (Date) row[2], |
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182 (Date) row[3]); |
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183 } |
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184 return height; |
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185 } |
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186 return new BedHeight(); |
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187 } |
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188 } |
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189 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |