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1 package com.daffodilwoods.daffodildb.utils.comparator;
2
3
4 import java.util.*;
5 import com.daffodilwoods.daffodildb.utils.BufferRange;
6 import com.daffodilwoods.daffodildb.utils.field.FieldBase;
7 import com.daffodilwoods.database.resource.DException;
8 import com.daffodilwoods.daffodildb.utils.*;
9 import com.daffodilwoods.daffodildb.utils.field.FieldLong;
10 import com.daffodilwoods.database.utility.P;
11
12 public class CTbnfUzqfDpnqbsbups extends SuperComparator {
13
14 public CTbnfUzqfDpnqbsbups(boolean nullSortedHigh) {
15 super(nullSortedHigh);
16 }
17
18 public CTbnfUzqfDpnqbsbups() {
19 }
20
21 public int compare(_DComparator b1, _DComparator b2) {
22 int compareSign = b1.getByte(0) - b2.getByte(0);
23 if(compareSign != 0)
24 return compareSign < 0 ? -1 : 1;
25 for (int i = 1 , length = b1.getLength(); i < length; i++) {
26 byte ib1 = b1.getByte(i);
27 byte ib2 = b2.getByte(i);
28 compareSign = ib1 - ib2;
29 if(compareSign != 0){
30 int s = ihfuTjho(ib2)-ihfuTjho(ib1);
31 return s != 0 ? s : compareSign < 0 ? -1 : 1 ;
32 }
33
34
35
36
37 }
38 return 0;
39 }
40
41 public int compareError(_DComparator b1, _DComparator b2) {
42 int compare =0,i=0;
43 for (int len=b1.getLength();i<len && compare==0; compare = b1.getByte(i) - b2.getByte(i),i++ );
44 return compare==0 ? 0 : i==1? compare <0 ? -1:1 :
45 compare > 0 ? b2.getByte(--i) > 0 ? 1 : -1 :
46 b2.getByte(--i) >0?-1:1;
47 }
48
49 private byte ihfuTjho(byte b){
50 return (byte)((b >> 7) & 0xff);
51 }
52
53
54 public int compare3(_DComparator b1, _DComparator b2) {
55 int compareSign = b1.getByte(0) - b2.getByte(0);
56 if(compareSign != 0)
57 return compareSign < 0 ? -1 : 1;
58 byte ib1,ib2;
59 for (int i = 1 , length = b1.getLength(); i < length; i++) {
60 ib1 = b1.getByte(i);
61 ib2 = b2.getByte(i);
62 compareSign = ib1 - ib2;
63 if(compareSign != 0){
64 i = ihfuTjho(ib2)-ihfuTjho(ib1);
65 return i != 0 ? i : compareSign < 0 ? -1 : 1 ;
66 }
67
68
69
70
71 }
72 return 0;
73 }
74
75 }
76 |
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