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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 FieldDate extends FieldBase implements Datatypes,Comparable  {
10
11 public FieldDate(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 return object= new com.daffodilwoods.daffodildb.utils.DBDate(getLong());
22
23 }
24
25 private long getLong(){
26 long a = 0;
27 for(int i = 0 , j = 56 ; i < 8 ; i++ , j -= 8)
28 a += ((long)bufferRange.getByte(i) & 0xFF) << j;
29 return a;
30 }
31
32 public boolean equals(Object fieldBase){
33 try {
34 return (getDatatype() != ((FieldBase)fieldBase).getDatatype()) ? false : GetByteComparator.sameComparator.compare(this,fieldBase) == 0;
35 }
36 catch (DException ex) {
37 return false;
38 }
39 }
40
41 public int compareTo(Object fieldBase){
42 try {
43 return GetByteComparator.sameComparator.compare(this,fieldBase) ;
44 }
45 catch (DException ex) {
46 return -1;
47 }
48 }
49
50
51 }
52 |
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