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14 package org.jacorb.trading.constraint;
15
16
17 public class DoubleValue implements Value
18 {
19 private Double  m_value;
20
21
22 public DoubleValue()
23 {
24 this(0.0);
25 }
26
27
28 public DoubleValue(double value)
29 {
30 m_value = new Double (value);
31 }
32
33
34 public DoubleValue(Object value)
35 {
36 m_value = (Double )value;
37 }
38
39
40 public void setValue(Object value)
41 {
42 m_value = (Double )value;
43 }
44
45
46 public int getTypeId()
47 {
48 return ValueType.DOUBLE;
49 }
50
51
52 public Object getValue()
53 {
54 return m_value;
55 }
56
57
58 public boolean equals(Value nv)
59 {
60 boolean result = false;
61
62 if (nv.getTypeId() == ValueType.DOUBLE)
63 result = m_value.equals(nv.getValue());
64 else
65 throw new IllegalArgumentException ();
66
67 return result;
68 }
69
70
71 public boolean lessThan(Value nv)
72 {
73 boolean result = false;
74
75 if (nv.getTypeId() == ValueType.DOUBLE) {
76 Double d = (Double )nv.getValue();
77 result = (m_value.doubleValue() < d.doubleValue());
78 }
79 else
80 throw new IllegalArgumentException ();
81
82 return result;
83 }
84
85
86 public boolean lessThanEqual(Value nv)
87 {
88 return (lessThan(nv) || equals(nv));
89 }
90
91
92 public boolean greaterThan(Value nv)
93 {
94 return (! lessThan(nv) && ! equals(nv));
95 }
96
97
98 public boolean greaterThanEqual(Value nv)
99 {
100 return (! lessThan(nv));
101 }
102
103
104 public Value plus(Value nv)
105 {
106 Value result = null;
107
108 if (nv.getTypeId() == ValueType.DOUBLE) {
109 Double d = (Double )nv.getValue();
110 result = new DoubleValue(m_value.doubleValue() + d.doubleValue());
111 }
112 else
113 throw new IllegalArgumentException ();
114
115 return result;
116 }
117
118
119 public Value minus(Value nv)
120 {
121 Value result = null;
122
123 if (nv.getTypeId() == ValueType.DOUBLE) {
124 Double d = (Double )nv.getValue();
125 result = new DoubleValue(m_value.doubleValue() - d.doubleValue());
126 }
127 else
128 throw new IllegalArgumentException ();
129
130 return result;
131 }
132
133
134 public Value multiply(Value nv)
135 {
136 Value result = null;
137
138 if (nv.getTypeId() == ValueType.DOUBLE) {
139 Double d = (Double )nv.getValue();
140 result = new DoubleValue(m_value.doubleValue() * d.doubleValue());
141 }
142 else
143 throw new IllegalArgumentException ();
144
145 return result;
146 }
147
148
149 public Value divide(Value nv)
150 {
151 Value result = null;
152
153 if (nv.getTypeId() == ValueType.DOUBLE) {
154 Double d = (Double )nv.getValue();
155 result = new DoubleValue(m_value.doubleValue() / d.doubleValue());
156 }
157 else
158 throw new IllegalArgumentException ();
159
160 return result;
161 }
162
163
164 public Value negate()
165 {
166 Value result = null;
167
168 result = new DoubleValue(-1 * m_value.doubleValue());
169
170 return result;
171 }
172
173
174 public Value convert(int typeId)
175 {
176 Value result = null;
177
178 switch (typeId) {
179 case ValueType.DOUBLE:
180 result = new DoubleValue(m_value);
181 break;
182
183 default:
184 throw new IllegalArgumentException ();
185 }
186
187 return result;
188 }
189
190
191 public String toString()
192 {
193 return m_value.toString();
194 }
195 }
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