Mercurial > dive4elements > river
annotate flys-backend/src/main/java/de/intevation/flys/model/Range.java @ 5781:a5d4904e6bb2
Part of issue697: Q-Mainvalue-Artifacts-Text vertically.
author | Felix Wolfsteller <felix.wolfsteller@intevation.de> |
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date | Mon, 22 Apr 2013 11:42:12 +0200 |
parents | 80b9218ac007 |
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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 public static final double EPSILON = 1e-5; |
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23 private Integer id; |
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24 private BigDecimal a; |
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25 private BigDecimal b; |
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26 |
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27 private River river; |
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28 |
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29 public Range() { |
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30 } |
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31 |
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32 public Range(double a, double b, River river) { |
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33 this(new BigDecimal(a), new BigDecimal(b), river); |
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34 } |
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35 |
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36 public Range(BigDecimal a, BigDecimal b, River river) { |
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37 this.a = a; |
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38 this.b = b; |
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39 this.river = river; |
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40 } |
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41 |
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42 @Id |
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43 @SequenceGenerator( |
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44 name = "SEQUENCE_RANGES_ID_SEQ", |
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45 sequenceName = "RANGES_ID_SEQ", |
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46 allocationSize = 1) |
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47 @GeneratedValue( |
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48 strategy = GenerationType.SEQUENCE, |
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49 generator = "SEQUENCE_RANGES_ID_SEQ") |
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50 @Column(name = "id") |
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51 public Integer getId() { |
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52 return id; |
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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 @Column(name = "a") // FIXME: type mapping needed? |
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60 public BigDecimal getA() { |
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61 return a; |
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62 } |
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63 |
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64 public void setA(BigDecimal a) { |
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65 this.a = a; |
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66 } |
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67 |
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68 @Column(name = "b") // FIXME: type mapping needed? |
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69 public BigDecimal getB() { |
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70 return b; |
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71 } |
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72 |
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73 public void setB(BigDecimal b) { |
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74 this.b = b; |
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75 } |
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76 |
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77 public boolean containsTolerant(double x) { |
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78 return containsTolerant(x, EPSILON); |
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79 } |
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80 |
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81 public boolean containsTolerant(double x, double tolerance) { |
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82 BigDecimal b = this.b != null ? this.b : a; |
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83 double av = a.doubleValue(); |
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84 double bv = b.doubleValue(); |
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85 if (av > bv) { |
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86 double t = av; |
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87 av = bv; |
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88 bv = t; |
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89 } |
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90 return x+tolerance >= av && x-tolerance <= bv; |
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91 } |
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92 |
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93 public boolean contains(double x) { |
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94 BigDecimal b = this.b != null ? this.b : a; |
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95 double av = a.doubleValue(); |
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96 double bv = b.doubleValue(); |
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97 if (av > bv) { |
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98 double t = av; |
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99 av = bv; |
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100 bv = t; |
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101 } |
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102 return x >= av && x <= bv; |
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103 } |
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104 |
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105 @OneToOne |
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106 @JoinColumn(name = "river_id") |
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107 public River getRiver() { |
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108 return river; |
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109 } |
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110 |
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111 public void setRiver(River river) { |
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112 this.river = river; |
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113 } |
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114 |
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115 public int code() { |
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116 int code = 0; |
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117 if (a != null) code = 1; |
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118 if (b != null) code |= 2; |
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119 return code; |
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120 } |
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121 |
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122 public boolean intersects(BigDecimal c) { |
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123 return !(a.compareTo(c) > 0 || b.compareTo(c) < 0); |
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124 } |
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125 |
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126 public boolean intersects(Range other) { |
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127 |
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128 int code = code(); |
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129 int ocode = other.code(); |
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130 |
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131 if (code == 0 || ocode == 0) { |
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132 return false; |
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133 } |
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134 |
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135 switch (code) { |
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136 case 1: // has a |
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137 switch (ocode) { |
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138 case 1: // has a |
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139 return a.compareTo(other.a) == 0; |
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140 case 2: // has b |
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141 return a.compareTo(other.b) == 0; |
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142 case 3: // has range |
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143 return other.intersects(a); |
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144 } |
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145 break; |
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146 case 2: // has b |
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147 switch (ocode) { |
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148 case 1: // has a |
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149 return b.compareTo(other.a) == 0; |
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150 case 2: // has b |
205
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151 return b.compareTo(other.b) == 0; |
204
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152 case 3: // has range |
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153 return other.intersects(b); |
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154 } |
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155 break; |
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156 case 3: // has range |
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157 switch (ocode) { |
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158 case 1: // has a |
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159 return intersects(other.a); |
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160 case 2: // has b |
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161 return intersects(other.b); |
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162 case 3: // has range |
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163 return !(other.b.compareTo(a) < 0 |
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164 ||other.a.compareTo(b) > 0); |
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165 } |
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166 break; |
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167 |
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168 } |
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169 |
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170 return false; |
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171 } |
167
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172 } |
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173 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 : |