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1 package com.daffodilwoods.daffodildb.utils.field;
2
3 import com.daffodilwoods.database.resource.DException;
4 import com.daffodilwoods.daffodildb.utils.GetByteComparator;
5 import com.daffodilwoods.daffodildb.server.datasystem.interfaces.Datatype;
6 import com.daffodilwoods.daffodildb.utils.BufferRange;
7 import java.sql.Timestamp  ;
8
9 public class FieldTimeStampLiteral extends FieldBase implements Comparable {
10
11 public FieldTimeStampLiteral(Object object0){
12 object = object0;
13 datatype = Datatype.TIMESTAMP;
14 }
15
16 public FieldTimeStampLiteral(BufferRange bufferRange0) {
17 bufferRange = bufferRange0;
18 datatype = Datatype.TIMESTAMP;
19 }
20
21 public Object getObject() throws DException{
22 return object;
23 }
24
25 public BufferRange getBufferRange() {
26 if(bufferRange == null)
27 bufferRange = new BufferRange(getBytes((Timestamp )object));
28 return bufferRange;
29 }
30
31 public byte[] getBytes(Timestamp timestamp)
32 {
33 if( timestamp == null)
34 return null;
35 byte b[] = new byte[8];
36 long a1 = timestamp.getTime();
37 for(int i = 56 , j=0 ; i >= 0 ; i-= 8)
38 b[j++]=(byte)((a1 >> i) & 0xFF);
39 return b;
40 }
41
42 public boolean equals(Object fieldBase){
43 try {
44 return (getDatatype() != ((FieldBase)fieldBase).getDatatype()) ? false :
45 GetByteComparator.sameComparator.compare(this,fieldBase) == 0;
46 }
47 catch (DException ex) {
48 return false;
49 }
50 }
51
52 public int compareTo(Object fieldBase){
53 try {
54 return GetByteComparator.sameComparator.compare(this,fieldBase) ;
55 }
56 catch (DException ex) {
57 return -1;
58 }
59 }
60
61 public boolean isNull() {
62 return object == null;
63 }
64
65 public boolean getNull() {
66 return object == null;
67 }
68
69 public String toString(){
70 return "FieldTimeStampLiteral["+object+"]";
71 }
72
73 public void setDatatype(int type) throws DException{
74 }
75 public void setBufferRange(BufferRange range) {
76 throw new RuntimeException ("Create new instance of FieldTimeStampLiteral instead of setting the bufferrange. Discuss with Neeraj or Parveen Sir ");
77 }
78
79 }
80 |
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