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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 FieldShort extends FieldBase implements Datatypes,Comparable  {
10
11 public FieldShort(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 short a= 0;
22 for(int i = 0 , j = 8 ; i < 2 ; i++ , j -= 8)
23 a += ( (short)bufferRange.getByte(i) & 0xFF) << j;
24 object =new Short (a);
25 return object;
26 }
27 public int compareTo(Object fieldBase){
28 try {
29 return GetByteComparator.sameComparator.compare(this,fieldBase) ;
30 }
31 catch (DException ex) {
32 return -1;
33 }
34 }
35 public boolean equals(Object fieldBase){
36 try {
37 return (getDatatype() != ((FieldBase)fieldBase).getDatatype()) ? false :
38 GetByteComparator.sameComparator.compare(this,fieldBase) == 0;
39 }
40 catch (DException ex) {
41 return false;
42 }
43 }
44
45
46 }
47 |
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