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1 package com.daffodilwoods.daffodildb.utils.field;
2
3 import com.daffodilwoods.daffodildb.server.sql99.common.Datatypes;
4 import com.daffodilwoods.database.resource.DException;
5 import com.daffodilwoods.daffodildb.utils.BufferRange;
6 import com.daffodilwoods.daffodildb.utils.GetByteComparator;
7 import java.util.*;
8
9 public class FieldLong extends FieldBase implements Datatypes,Comparable  {
10
11 public FieldLong(BufferRange bufferRange0,int datatype0) {
12 bufferRange = bufferRange0;
13 datatype = datatype0;
14 }
15
16 public Object getObject() throws DException {
17 if (bufferRange.getNull())
18 return null;
19 if (object != null)
20 return object;
21 long a = 0;
22 try {
23 for (int i = 0, j = 56; i < 8; i++, j -= 8) {
24 a += ( (long) bufferRange.getByte(i) & 0xFF) << j;
25 }
26 }
27 catch (ArrayIndexOutOfBoundsException ex) {
28 }
29 object = new Long (a);
30 return object;
31 }
32
33 public boolean equals(Object fieldBase){
34 try {
35 return (datatype != ((FieldBase)fieldBase).getDatatype()) ? false :
36 GetByteComparator.sameComparator.compare(this,fieldBase) == 0 ;
37 }
38 catch (DException ex) {
39 return false;
40 }
41 }
42
43 public int compareTo(Object fieldBase){
44 try {
45 return GetByteComparator.sameComparator.compare(this,fieldBase) ;
46 }
47 catch (DException ex) {
48 return -1;
49 }
50 }
51
52 public int hashCode(){
53 try {
54 return ( (Long ) getObject()).intValue();
55 }
56 catch (DException ex) {
57 return 0;
58 }
59 }
60
61 }
62 |
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