Mercurial > dive4elements > river

annotate flys-backend/src/main/java/de/intevation/flys/model/CrossSectionTrack.java @ 2360:9df06b88c079

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Added model class for relation 'river_axes_km'. flys-backend/trunk@3133 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Tue, 01 Nov 2011 15:30:38 +0000
parents 8e2fe935ddf1
children d42249d91f47
rev   line source
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1 package de.intevation.flys.model;
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2
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3 import java.io.Serializable;
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4 import java.math.BigDecimal;
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5 import java.util.List;
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6
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7 import javax.persistence.Column;
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8 import javax.persistence.Entity;
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9 import javax.persistence.Id;
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10 import javax.persistence.JoinColumn;
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11 import javax.persistence.OneToOne;
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12 import javax.persistence.Table;
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13
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14 import org.hibernate.Query;
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15 import org.hibernate.Session;
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16 import org.hibernate.annotations.Type;
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17
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18 import com.vividsolutions.jts.geom.LineString;
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19
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20 import de.intevation.flys.backend.SessionHolder;
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21
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22
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23 @Entity
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24 @Table(name = "cross_section_tracks")
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25 public class CrossSectionTrack
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26 implements Serializable
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27 {
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28 private Integer id;
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29 private River river;
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30 private LineString geom;
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31 private BigDecimal km;
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32 private BigDecimal z;
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33
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34 public CrossSectionTrack() {
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35 }
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36
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37
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38 @Id
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39 @Column(name = "id")
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40 public Integer getId() {
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41 return id;
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42 }
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43
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44
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45 public void setId(Integer id) {
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46 this.id = id;
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47 }
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48
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49
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50 @OneToOne
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51 @JoinColumn(name = "river_id")
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52 public River getRiver() {
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53 return river;
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54 }
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55
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56
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57 public void setRiver(River river) {
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58 this.river = river;
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59 }
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60
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61
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62 @Column(name = "geom")
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63 @Type(type = "org.hibernatespatial.GeometryUserType")
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64 public LineString getGeom() {
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65 return geom;
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66 }
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67
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68
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69 public void setGeom(LineString geom) {
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70 this.geom = geom;
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71 }
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72
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73
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74 @Column(name = "km")
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75 public BigDecimal getKm() {
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76 return km;
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77 }
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78
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79
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80 public void setKm(BigDecimal km) {
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81 this.km = km;
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82 }
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83
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84
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85 @Column(name = "z")
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86 public BigDecimal getZ() {
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87 return z;
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88 }
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89
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90
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91 public void setZ(BigDecimal z) {
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92 this.z = z;
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93 }
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94
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95
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96 public static List<CrossSectionTrack> getCrossSectionTrack(
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97 String river)
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98 {
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99 Session session = SessionHolder.HOLDER.get();
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100
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101 Query query = session.createQuery(
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102 "from CrossSectionTrack where river.name =:river");
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103 query.setParameter("river", river);
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104
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105 return query.list();
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106 }
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107
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108
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109 /**
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110 * Returns the nearest CrossSectionTrack of <i>river</i> to a given
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111 * <i>km</i>.
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112 *
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113 * @param river The name of a river.
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114 * @param km The kilometer value.
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115 *
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116 * @return the nearest CrossSectionTrack to <i>km</i> of river <i>river</i>.
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117 */
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118 public static CrossSectionTrack getCrossSectionTrack(
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119 String river,
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120 double km
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121 ) {
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122 Session session = SessionHolder.HOLDER.get();
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123
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124 Query query = session.createQuery(
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125 "from CrossSectionTrack where river.name =:river " +
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126 "order by abs( km - :mykm)");
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127 query.setParameter("river", river);
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128 query.setParameter("mykm", new BigDecimal(km));
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129
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130 List<CrossSectionTrack> cst = query.list();
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131
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132 return cst != null && !cst.isEmpty() ? cst.get(0) : null;
8e2fe935ddf1 Added function to retrieve nearest CrossSectionTrack to a given kilometer.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1235
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133 }
1230
e2deda3b77a7 Introduced support for FLYS spatial data.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
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134 }
e2deda3b77a7 Introduced support for FLYS spatial data.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
135 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org