Mercurial > dive4elements > river

annotate flys-backend/src/main/java/de/intevation/flys/model/Range.java @ 5798:febeb4bb10a5

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StaticWQKmsArtifact: implement WaterLineArtifact .
author Felix Wolfsteller <felix.wolfsteller@intevation.de>
date Wed, 24 Apr 2013 08:21:52 +0200
parents 80b9218ac007
children
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
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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
171
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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 :
http://dive4elements.wald.intevation.org