Mercurial > dive4elements > river
annotate flys-backend/src/main/java/de/intevation/flys/model/Range.java @ 5069:082e7b01d562 dami
documentation: Use german Silbentrennung.
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Wed, 20 Feb 2013 09:06:18 +0100 |
parents | 697d1faa8217 |
children | 7b1c5fe4ebf3 |
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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 |
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5 import java.math.BigDecimal; |
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6 |
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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.Table; |
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10 import javax.persistence.GeneratedValue; |
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11 import javax.persistence.Column; |
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12 import javax.persistence.SequenceGenerator; |
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13 import javax.persistence.GenerationType; |
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14 import javax.persistence.JoinColumn; |
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15 import javax.persistence.OneToOne; |
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16 |
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17 @Entity |
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18 @Table(name = "ranges") |
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19 public class Range |
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20 implements Serializable |
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21 { |
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22 private Integer id; |
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23 private BigDecimal a; |
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24 private BigDecimal b; |
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25 |
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26 private River river; |
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27 |
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28 public Range() { |
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29 } |
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30 |
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31 public Range(double a, double b, River river) { |
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32 this(new BigDecimal(a), new BigDecimal(b), river); |
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33 } |
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34 |
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35 public Range(BigDecimal a, BigDecimal b, River river) { |
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36 this.a = a; |
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37 this.b = b; |
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38 this.river = river; |
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39 } |
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40 |
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41 @Id |
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42 @SequenceGenerator( |
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43 name = "SEQUENCE_RANGES_ID_SEQ", |
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44 sequenceName = "RANGES_ID_SEQ", |
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45 allocationSize = 1) |
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46 @GeneratedValue( |
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47 strategy = GenerationType.SEQUENCE, |
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48 generator = "SEQUENCE_RANGES_ID_SEQ") |
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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 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 @Column(name = "a") // FIXME: type mapping needed? |
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59 public BigDecimal getA() { |
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60 return a; |
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61 } |
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62 |
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63 public void setA(BigDecimal a) { |
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64 this.a = a; |
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65 } |
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66 |
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67 @Column(name = "b") // FIXME: type mapping needed? |
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68 public BigDecimal getB() { |
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69 return b; |
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70 } |
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71 |
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72 public void setB(BigDecimal b) { |
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73 this.b = b; |
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74 } |
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75 |
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76 @OneToOne |
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77 @JoinColumn(name = "river_id") |
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78 public River getRiver() { |
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79 return river; |
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80 } |
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81 |
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82 public void setRiver(River river) { |
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83 this.river = river; |
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84 } |
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85 |
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86 public int code() { |
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87 int code = 0; |
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88 if (a != null) code = 1; |
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89 if (b != null) code |= 2; |
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90 return code; |
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91 } |
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92 |
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93 public boolean intersects(BigDecimal c) { |
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94 return !(a.compareTo(c) > 0 || b.compareTo(c) < 0); |
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95 } |
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96 |
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97 public boolean intersects(Range other) { |
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98 |
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99 int code = code(); |
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100 int ocode = other.code(); |
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101 |
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102 if (code == 0 || ocode == 0) { |
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103 return false; |
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104 } |
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105 |
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106 switch (code) { |
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107 case 1: // has a |
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108 switch (ocode) { |
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109 case 1: // has a |
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110 return a.compareTo(other.a) == 0; |
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111 case 2: // has b |
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112 return a.compareTo(other.b) == 0; |
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113 case 3: // has range |
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114 return other.intersects(a); |
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115 } |
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116 break; |
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117 case 2: // has b |
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118 switch (ocode) { |
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119 case 1: // has a |
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120 return b.compareTo(other.a) == 0; |
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121 case 2: // has b |
205
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122 return b.compareTo(other.b) == 0; |
204
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123 case 3: // has range |
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124 return other.intersects(b); |
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125 } |
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126 break; |
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127 case 3: // has range |
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128 switch (ocode) { |
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129 case 1: // has a |
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130 return intersects(other.a); |
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131 case 2: // has b |
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132 return intersects(other.b); |
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133 case 3: // has range |
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134 return !(other.b.compareTo(a) < 0 |
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135 ||other.a.compareTo(b) > 0); |
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136 } |
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137 break; |
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138 |
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139 } |
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140 |
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141 return false; |
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142 } |
167
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143 } |
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144 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |