Mercurial > dive4elements > river

annotate flys-backend/src/main/java/de/intevation/flys/model/RiverAxis.java @ 5329:029b5f5f1dcc

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Little code clean up and possible a NPE fix.
author Sascha L. Teichmann <teichmann@intevation.de>
date Fri, 15 Mar 2013 19:50:53 +0100
parents 9d36ddf7dbd3
children ae60bb7b8085
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.HibernateException;
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14 import org.hibernate.Session;
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15 import org.hibernate.Query;
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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.MultiLineString;
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19
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20 import de.intevation.flys.backend.SessionHolder;
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21 import de.intevation.flys.model.AxisKind;
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22
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23
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24 /**
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25 * A river has one axis that is used for calculation.
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26 * Additional axes of a river can be used to be painted int maps etc.
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27 * which one is the main river axis can be determined over the axis kind.
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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 AxisKind kind;
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36 private River river;
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37 private MultiLineString geom;
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38
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39 public static final int KIND_UNKOWN = 0;
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40 public static final int KIND_CURRENT = 1;
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41 public static final int KIND_OTHER = 2;
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42
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43 public RiverAxis() {
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44 }
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45
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46
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47 @Id
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48 @Column(name = "id")
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49 public Integer getId() {
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50 return id;
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51 }
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52
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53
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54 public void setId(Integer id) {
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55 this.id = id;
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56 }
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57
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58
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59 @OneToOne
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60 @JoinColumn(name = "river_id")
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61 public River getRiver() {
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62 return river;
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63 }
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64
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65
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66 public void setRiver(River river) {
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67 this.river = river;
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68 }
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69
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70
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71 /**
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72 * Get kind.
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73 *
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74 * @return kind as AxisKind.
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75 */
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76 @OneToOne
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77 @JoinColumn(name = "kind_id")
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78 public AxisKind getKind() {
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79 return kind;
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80 }
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81
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82 /**
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83 * Set kind.
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84 *
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85 * @param kind the value to set.
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86 */
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87 public void setKind(AxisKind kind) {
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88 this.kind = kind;
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89 }
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90
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91
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92 @Column(name = "geom")
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93 @Type(type = "org.hibernatespatial.GeometryUserType")
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94 public MultiLineString getGeom() {
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95 return geom;
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96 }
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97
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98
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99 public void setGeom(MultiLineString geom) {
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100 this.geom = geom;
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101 }
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102
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103
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104 public static List<RiverAxis> getRiverAxis(String river)
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105 throws IllegalArgumentException {
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106 return getRiverAxis(river, KIND_CURRENT);
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107 }
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108
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109 public static List<RiverAxis> getRiverAxis(String river, int kind)
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110 throws HibernateException {
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111 Session session = SessionHolder.HOLDER.get();
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112 Query query = session.createQuery(
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113 "from RiverAxis where river.name =:river AND kind.id =:kind");
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114 query.setParameter("river", river);
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115 query.setParameter("kind", kind);
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116
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117 List<RiverAxis> list = query.list();
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118 return list.isEmpty() ? null : list;
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119 }
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120 }
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121 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
http://dive4elements.wald.intevation.org