Mercurial > dive4elements > river

comparison flys-backend/src/main/java/de/intevation/flys/model/Range.java @ 2877:f0a67bc0e777 2.7

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merged flys-backend/2.7
author Thomas Arendsen Hein <thomas@intevation.de>
date Fri, 28 Sep 2012 12:14:31 +0200
parents 697d1faa8217
children 7b1c5fe4ebf3
comparison
equal deleted inserted replaced
2793:6310b1582f2d 2877:f0a67bc0e777
1 package de.intevation.flys.model;
2
3 import java.io.Serializable;
4
5 import java.math.BigDecimal;
6
7 import javax.persistence.Entity;
8 import javax.persistence.Id;
9 import javax.persistence.Table;
10 import javax.persistence.GeneratedValue;
11 import javax.persistence.Column;
12 import javax.persistence.SequenceGenerator;
13 import javax.persistence.GenerationType;
14 import javax.persistence.JoinColumn;
15 import javax.persistence.OneToOne;
16
17 @Entity
18 @Table(name = "ranges")
19 public class Range
20 implements Serializable
21 {
22 private Integer id;
23 private BigDecimal a;
24 private BigDecimal b;
25
26 private River river;
27
28 public Range() {
29 }
30
31 public Range(double a, double b, River river) {
32 this(new BigDecimal(a), new BigDecimal(b), river);
33 }
34
35 public Range(BigDecimal a, BigDecimal b, River river) {
36 this.a = a;
37 this.b = b;
38 this.river = river;
39 }
40
41 @Id
42 @SequenceGenerator(
43 name = "SEQUENCE_RANGES_ID_SEQ",
44 sequenceName = "RANGES_ID_SEQ",
45 allocationSize = 1)
46 @GeneratedValue(
47 strategy = GenerationType.SEQUENCE,
48 generator = "SEQUENCE_RANGES_ID_SEQ")
49 @Column(name = "id")
50 public Integer getId() {
51 return id;
52 }
53
54 public void setId(Integer id) {
55 this.id = id;
56 }
57
58 @Column(name = "a") // FIXME: type mapping needed?
59 public BigDecimal getA() {
60 return a;
61 }
62
63 public void setA(BigDecimal a) {
64 this.a = a;
65 }
66
67 @Column(name = "b") // FIXME: type mapping needed?
68 public BigDecimal getB() {
69 return b;
70 }
71
72 public void setB(BigDecimal b) {
73 this.b = b;
74 }
75
76 @OneToOne
77 @JoinColumn(name = "river_id")
78 public River getRiver() {
79 return river;
80 }
81
82 public void setRiver(River river) {
83 this.river = river;
84 }
85
86 public int code() {
87 int code = 0;
88 if (a != null) code = 1;
89 if (b != null) code |= 2;
90 return code;
91 }
92
93 public boolean intersects(BigDecimal c) {
94 return !(a.compareTo(c) > 0 || b.compareTo(c) < 0);
95 }
96
97 public boolean intersects(Range other) {
98
99 int code = code();
100 int ocode = other.code();
101
102 if (code == 0 || ocode == 0) {
103 return false;
104 }
105
106 switch (code) {
107 case 1: // has a
108 switch (ocode) {
109 case 1: // has a
110 return a.compareTo(other.a) == 0;
111 case 2: // has b
112 return a.compareTo(other.b) == 0;
113 case 3: // has range
114 return other.intersects(a);
115 }
116 break;
117 case 2: // has b
118 switch (ocode) {
119 case 1: // has a
120 return b.compareTo(other.a) == 0;
121 case 2: // has b
122 return b.compareTo(other.b) == 0;
123 case 3: // has range
124 return other.intersects(b);
125 }
126 break;
127 case 3: // has range
128 switch (ocode) {
129 case 1: // has a
130 return intersects(other.a);
131 case 2: // has b
132 return intersects(other.b);
133 case 3: // has range
134 return !(other.b.compareTo(a) < 0
135 ||other.a.compareTo(b) > 0);
136 }
137 break;
138
139 }
140
141 return false;
142 }
143 }
144 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :
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