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14 package org.jacorb.trading.constraint;
15
16
17 public class BooleanValue implements Value
18 {
19 private Boolean  m_value;
20
21
22 public BooleanValue()
23 {
24 this(false);
25 }
26
27
28 public BooleanValue(boolean value)
29 {
30 m_value = new Boolean (value);
31 }
32
33
34 public BooleanValue(Object value)
35 {
36 m_value = (Boolean )value;
37 }
38
39
40 public void setValue(Object value)
41 {
42 m_value = (Boolean )value;
43 }
44
45
46 public int getTypeId()
47 {
48 return ValueType.BOOLEAN;
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.BOOLEAN)
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.BOOLEAN) {
76 Boolean b = (Boolean )nv.getValue();
77 result = (m_value.booleanValue() == false && b.booleanValue() == true);
79 }
80 else
81 throw new IllegalArgumentException ();
82
83 return result;
84 }
85
86
87 public boolean lessThanEqual(Value nv)
88 {
89 return (lessThan(nv) || equals(nv));
90 }
91
92
93 public boolean greaterThan(Value nv)
94 {
95 return (! lessThan(nv) && ! equals(nv));
96 }
97
98
99 public boolean greaterThanEqual(Value nv)
100 {
101 return (! lessThan(nv));
102 }
103
104
105 public Value plus(Value nv)
106 {
107 throw new ArithmeticException ();
108 }
109
110
111 public Value minus(Value nv)
112 {
113 throw new ArithmeticException ();
114 }
115
116
117 public Value multiply(Value nv)
118 {
119 throw new ArithmeticException ();
120 }
121
122
123 public Value divide(Value nv)
124 {
125 throw new ArithmeticException ();
126 }
127
128
129 public Value negate()
130 {
131 throw new ArithmeticException ();
132 }
133
134
135 public Value convert(int typeId)
136 {
137 Value result = null;
138
139 if (typeId == ValueType.BOOLEAN)
140 result = new BooleanValue(m_value);
141 else
142 throw new IllegalArgumentException ();
143
144 return result;
145 }
146
147
148 public String toString()
149 {
150 return m_value.toString();
151 }
152 }
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