annotate artifacts/src/main/java/org/dive4elements/river/artifacts/model/minfo/BedHeightFactory.java @ 6665:b7945db8a43b

issue1413: Only show unknown sediment loads of selected unit type. Therefore, adjusted the factory to take the units name. Unfortunately, names in db do not match values of data items. Thus do manual replacing. In Facet and Calculate, take the chosen unit via access and to the string replacement. In Facet, do not transform data (we assume it comes in unit as labeled in the db), and removed the possibility of m3/a-data of unknown yields in a t/a diagram and vice versa.
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Thu, 25 Jul 2013 15:08:13 +0200
parents ec32ccf7a753
children 4ac054834294
rev   line source
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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
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27 public class BedHeightFactory {
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28 /** Private logger to use here. */
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29 private static Logger log = Logger.getLogger(BedHeightFactory.class);
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30
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31 /** Query to get km and ws for wst_id and column_pos. */
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32 public static final String SQL_SELECT_SINGLE =
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33 "SELECT bhsv.height, bhsv.station, bhsv.data_gap, bhsv.sounding_width, bhs.year " +
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34 " FROM bed_height_single bhs" +
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35 " JOIN bed_height_single_values bhsv on bhsv.bed_height_single_id = bhs.id" +
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36 " WHERE bhs.id = :height_id" +
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37 " ORDER BY bhsv.station";
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38
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39
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40 /** Query to get name for wst_id and column_pos. */
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41 public static final String SQL_SELECT_EPOCH =
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42 "SELECT bv.height, bv.station, ti.start_time, ti.stop_time" +
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43 " FROM bed_height_epoch b" +
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44 " JOIN bed_height_epoch_values bv ON b.id = bv.bed_height_epoch_id" +
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45 " JOIN time_intervals ti ON b.time_interval_id = ti.id" +
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46 " WHERE b.id = :height_id" +
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47 " ORDER BY bhsv.station";
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48
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49 /** Query to get name (description) for wst_id. */
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50 public static final String SQL_SELECT_DESCR_SINGLE =
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51 "SELECT description FROM bed_height_single "+
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52 "WHERE id = :height_id";
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53
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54 /** Query to get name (description) for wst_id. */
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55 public static final String SQL_SELECT_DESCR_EPOCH =
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56 "SELECT description from bed_height_epoch "+
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57 "WHERE id = :height_id";
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58
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59
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60 private BedHeightFactory() {
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61 }
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62
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63
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64 /**
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65 * Get BedHeight for given type and height_id, caring about the cache.
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66 */
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67 public static BedHeight getHeight(String type, int height_id, int time) {
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68 log.debug("BedHeightFactory.getHeight");
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69 Cache cache = CacheFactory.getCache(StaticBedHeightCacheKey.CACHE_NAME);
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70
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71 StaticBedHeightCacheKey cacheKey;
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72
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73 if (cache != null) {
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74 cacheKey = new StaticBedHeightCacheKey(height_id, time);
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75 Element element = cache.get(cacheKey);
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76 if (element != null) {
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77 log.debug("Got static bedheight values from cache");
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78 return (BedHeight)element.getValue();
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79 }
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80 }
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81 else {
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82 cacheKey = null;
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83 }
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84
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85 BedHeight values = getBedHeightUncached(type, height_id, time);
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86
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87 if (values != null && cacheKey != null) {
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88 log.debug("Store static bed height values in cache.");
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89 Element element = new Element(cacheKey, values);
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90 cache.put(element);
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91 }
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92 return values;
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93 }
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94
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95 /** Get name for a BedHeight. */
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96 public static String getHeightName(String type, int height_id) {
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97 log.debug("BedHeightFactory.getHeightName height_id/" + height_id);
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98
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99 String name = null;
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100 Session session = SessionHolder.HOLDER.get();
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101
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102 SQLQuery nameQuery = null;
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103 if (type.equals("single")) {
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104 nameQuery = session.createSQLQuery(SQL_SELECT_DESCR_SINGLE)
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105 .addScalar("description", StandardBasicTypes.STRING);
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106 nameQuery.setInteger("height_id", height_id);
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107 }
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108 else if (type.equals("epoch")) {
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109 nameQuery = session.createSQLQuery(SQL_SELECT_DESCR_EPOCH)
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110 .addScalar("description", StandardBasicTypes.STRING);
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111 nameQuery.setInteger("height_id", height_id);
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112 }
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113 else {
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114 return "none";
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115 }
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116 List<String> names = nameQuery.list();
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117 if (!names.isEmpty()) {
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118 name = names.get(0);
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119 }
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120
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121 return name;
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122 }
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123
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124
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125 /**
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126 * Get BedHeight from db.
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127 * @param height_id database id of the bed_height
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128 * @return according BedHeight.
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129 */
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130 public static BedHeight getBedHeightUncached(
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131 String type,
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132 int height_id,
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133 int time)
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134 {
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135 if (log.isDebugEnabled()) {
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136 log.debug("BedHeightFactory.getBedHeightUncached");
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137 }
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138
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139 Session session = SessionHolder.HOLDER.get();
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140 SQLQuery sqlQuery = null;
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141 if (type.equals("single")) {
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142 BedHeightSingle height =
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143 new BedHeightSingle(getHeightName(type, height_id));
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144 sqlQuery = session.createSQLQuery(SQL_SELECT_SINGLE)
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145 .addScalar("height", StandardBasicTypes.DOUBLE)
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146 .addScalar("station", StandardBasicTypes.DOUBLE)
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147 .addScalar("data_gap", StandardBasicTypes.DOUBLE)
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148 .addScalar("sounding_width", StandardBasicTypes.DOUBLE)
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149 .addScalar("year", StandardBasicTypes.INTEGER);
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150 sqlQuery.setInteger("height_id", height_id);
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151 List<Object []> results = sqlQuery.list();
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152
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153 for (int i = 0; i < results.size(); i++) {
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154 Object[] row = results.get(i);
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155 log.debug("got station: " + (Double)row[1]);
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156 Double row0 = row[0] != null ? (Double)row[0] : Double.NaN;
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157 Double row1 = row[1] != null ? (Double)row[1] : Double.NaN;
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158 Double row2 = row[2] != null ? (Double)row[2] : Double.NaN;
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159 Double row3 = row[3] != null ? (Double)row[3] : Double.NaN;
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160 height.add(row0, row1, row2, row3, (Integer) row[4]);
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161 }
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162 return height;
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163 }
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164 else if (type.equals("epoch")) {
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165 BedHeightEpoch height =
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166 new BedHeightEpoch(getHeightName(type, height_id));
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167 sqlQuery = session.createSQLQuery(SQL_SELECT_EPOCH)
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168 .addScalar("height", StandardBasicTypes.DOUBLE)
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169 .addScalar("station", StandardBasicTypes.DOUBLE)
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170 .addScalar("start_time", StandardBasicTypes.DATE)
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171 .addScalar("stop_time", StandardBasicTypes.DATE);
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172 sqlQuery.setInteger("height_id", height_id);
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173 List<Object []> results = sqlQuery.list();
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174
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175 for (Object [] row: results) {
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176 height.add(
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177 (Double) row[0],
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178 (Double) row[1],
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179 (Date) row[2],
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180 (Date) row[3]);
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181 }
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182 return height;
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183 }
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184 return new BedHeight();
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185 }
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186 }
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187 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :

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