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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 FieldDouble
10 extends FieldBase
11 implements Datatypes, Comparable  {
12
13 public FieldDouble(BufferRange bufferRange0, int datatype0) {
14 bufferRange = bufferRange0;
15 datatype = datatype0;
16 }
17
18 public Object getObject() throws DException {
19
20 if (bufferRange.getNull())
21 return null;
22 if (object != null)
23 return object;
24 long a = 0;
25 for (int i = 0, j = 56; i < 8; i++, j -= 8)
26 a += ( (long) bufferRange.getByte(i) & 0xFF) << j;
27 double f = Double.longBitsToDouble(a);
28 return object = new Double (f);
29
30 }
31
32 public boolean equals(Object fieldBase) {
33 try {
34 return (getDatatype() != ( (FieldBase) fieldBase).getDatatype()) ? false :
35 GetByteComparator.sameComparator.compare(this, fieldBase) == 0;
36 }
37 catch (DException ex) {
38 return false;
39 }
40 }
41
42 public int compareTo(Object fieldBase) {
43 try {
44 return GetByteComparator.sameComparator.compare(this, fieldBase);
45 }
46 catch (DException ex) {
47 return -1;
48 }
49 }
50
51 public String toString() {
52 try {
53 return "FieldDouble [ Object = " + getObject() + " DataType = " +
54 datatype + " ]";
55 }
56 catch (DException ex) {
57 throw new RuntimeException (ex.getMessage());
58 }
59 }
60 }
61 |
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