Mercurial > dive4elements > river

annotate flys-backend/src/main/java/de/intevation/flys/model/RiverAxis.java @ 3959:6b1ca6ec4e3c

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Added a new method to RiverAxis to query a special kind of river axes (default, official, outsourced). flys-backend/trunk@5620 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Thu, 27 Sep 2012 13:43:31 +0000
parents 61cb16549eb1
children b195fede1c3b
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.util.List;
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5
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6 import javax.persistence.Column;
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7 import javax.persistence.Entity;
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8 import javax.persistence.Id;
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9 import javax.persistence.JoinColumn;
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10 import javax.persistence.OneToOne;
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11 import javax.persistence.Table;
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12
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13 import org.hibernate.Session;
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14 import org.hibernate.Query;
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15 import org.hibernate.annotations.Type;
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16
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17 import com.vividsolutions.jts.geom.LineString;
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18
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19 import de.intevation.flys.backend.SessionHolder;
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20
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21
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22 /**
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23 * There is a modeling problem with the RiverAxis. The initial idea was, that a
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24 * river can have a riveraxis that consist of exact one geometry. Now, it has
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25 * turned out, that a single geometry is not enough for a riveraxis (arm of a
61cb16549eb1 Modified the signature of RiverAxis.getRiverAxis() which now returns a list of RiverAxis objects instead of a single instance.
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26 * river, inflows, ...). As workaround, we now expect, that a river can just
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27 * have a single riveraxis.
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28 */
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29 @Entity
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30 @Table(name = "river_axes")
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31 public class RiverAxis
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32 implements Serializable
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33 {
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34 private Integer id;
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35 private Integer kind;
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36 private River river;
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37 private LineString geom;
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38
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39 public static final int DEFAULT_KIND = 0;
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40
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41 public static final int KIND_OFFICIAL = 1;
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42 public static final int KIND_OUTSOURCED = 2;
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43
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44 public RiverAxis() {
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45 }
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46
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47
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48 @Id
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49 @Column(name = "id")
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50 public Integer getId() {
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51 return id;
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52 }
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53
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54
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55 public void setId(Integer id) {
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56 this.id = id;
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57 }
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58
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59
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60 @OneToOne
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61 @JoinColumn(name = "river_id")
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62 public River getRiver() {
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63 return river;
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64 }
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65
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66
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67 public void setRiver(River river) {
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68 this.river = river;
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69 }
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70
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71
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72 @Column(name = "kind")
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73 public Integer getKind() {
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74 return kind;
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75 }
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76
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77
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78 public void setKind(Integer kind) {
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79 this.kind = kind;
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80 }
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81
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82
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83 @Column(name = "geom")
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84 @Type(type = "org.hibernatespatial.GeometryUserType")
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85 public LineString getGeom() {
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86 return geom;
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87 }
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88
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89
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90 public void setGeom(LineString geom) {
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91 this.geom = geom;
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92 }
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93
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94
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95 public static List<RiverAxis> getRiverAxis(String river) {
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96 return getRiverAxis(river, DEFAULT_KIND);
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97 }
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98
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99 public static List<RiverAxis> getRiverAxis(String river, int kind) {
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100 Session session = SessionHolder.HOLDER.get();
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101
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102 Query query = session.createQuery(
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103 "from RiverAxis where river.name =:river AND kind =:kind");
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104 query.setParameter("river", river);
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105 query.setParameter("kind", kind);
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106
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107 List<RiverAxis> list = query.list();
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108
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109 return list.isEmpty() ? null : list;
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110 }
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111 }
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112 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org