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1 package com.thaiopensource.datatype.xsd;
2
3 import java.math.BigDecimal  ;
4
5 import org.relaxng.datatype.ValidationContext;
6
7 class DecimalDatatype extends DatatypeBase implements OrderRelation {
8
9 boolean lexicallyAllows(String str) {
10 int len = str.length();
11 if (len == 0)
12 return false;
13 int i = 0;
14 switch (str.charAt(i)) {
15 case '+':
16 case '-':
17 if (++i == len)
18 return false;
19 }
20 boolean hadDecimalPoint = false;
21 if (str.charAt(i) == '.') {
22 hadDecimalPoint = true;
23 if (++i == len)
24 return false;
25 }
26 do {
27 switch (str.charAt(i)) {
28 case '0':
29 case '1':
30 case '2':
31 case '3':
32 case '4':
33 case '5':
34 case '6':
35 case '7':
36 case '8':
37 case '9':
38 break;
39 case '.':
40 if (hadDecimalPoint)
41 return false;
42 hadDecimalPoint = true;
43 break;
44 default:
45 return false;
46 }
47 } while (++i < len);
48 return true;
49 }
50
51 Object getValue(String str, ValidationContext vc) {
52 if (str.charAt(0) == '+')
53 str = str.substring(1); return new BigDecimal (str);
55 }
56
57 OrderRelation getOrderRelation() {
58 return this;
59 }
60
61 public boolean isLessThan(Object obj1, Object obj2) {
62 return ((BigDecimal )obj1).compareTo((BigDecimal )obj2) < 0;
63 }
64
65
70
71 public boolean sameValue(Object value1, Object value2) {
72 return ((BigDecimal )value1).compareTo((BigDecimal )value2) == 0;
73 }
74
75 public int valueHashCode(Object value) {
76 return ((BigDecimal )value).toBigInteger().hashCode();
77 }
78
79 }
80 |
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