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Java > Open Source Codes > com > daffodilwoods > daffodildb > utils > FieldBaseConverter


1 package com.daffodilwoods.daffodildb.utils;
2
3 import com.daffodilwoods.daffodildb.utils.field.*;
4 import com.daffodilwoods.daffodildb.server.sql99.common.Datatypes;
5 import java.math.BigDecimal JavaDoc;
6 import java.sql.Blob JavaDoc;
7 import java.sql.Clob JavaDoc;
8 import com.daffodilwoods.daffodildb.utils.byteconverter.CCzufDpowfsufs;
9 import java.util.Date JavaDoc;
10 import com.daffodilwoods.daffodildb.server.sql99.expression.expressionprimary.literal;
11 import com.daffodilwoods.daffodildb.server.datasystem.persistentsystem.TableKey;
12 import java.sql.Time JavaDoc;
13 import java.sql.Timestamp JavaDoc;
14 import com.daffodilwoods.daffodildb.server.datasystem.persistentsystem.DClobUpdatable;
15 import com.daffodilwoods.daffodildb.server.datasystem.persistentsystem.DBlobUpdatable;
16 import java.sql.*;
17 import java.text.Collator JavaDoc;
18
19 public class FieldBaseConverter {
20
21     public FieldBaseConverter() {
22     }
23
24     public static FieldBase getFieldBase(byte[] bytes, int datatype){
25         BufferRange buffer = bytes == null ? FieldUtility.NULLBUFFERRANGE : new BufferRange(bytes);
26         return new FieldLiteral(buffer,datatype);
27     }
28
29     public static FieldBase getFieldBase(Byte JavaDoc bytes, int datatype){
30         BufferRange buffer = bytes == null ? FieldUtility.NULLBUFFERRANGE : new BufferRange(new byte[] {bytes.byteValue()});
31         return new FieldByte(buffer,datatype);
32     }
33
34
35     public static FieldBase getFieldBase(BigDecimal JavaDoc bigDecimal, int datatype){
36         BufferRange buffer = bigDecimal == null ? FieldUtility.NULLBUFFERRANGE : new BufferRange(CCzufDpowfsufs.getBytes(bigDecimal));
37         return new FieldBigDecimal(buffer,datatype);
38     }
39
40     public static FieldBase getFieldBase(Blob JavaDoc blob){
41         try {
42             return blob == null ? new DBlobUpdatable(true) : new DBlobUpdatable(blob.getBinaryStream());
43         }
44         catch (SQLException ex) {
45             return null;
46         }
47     }
48
49     public static FieldBase getFieldBase(Boolean JavaDoc b){
50         BufferRange buffer = b == null ? FieldUtility.NULLBUFFERRANGE : new BufferRange(CCzufDpowfsufs.getBytes(b));
51         return new FieldBoolean(buffer,Datatypes.BOOLEAN);
52     }
53
54     public static FieldBase getFieldBase(Clob JavaDoc clob){
55         try {
56             return clob == null ? new DClobUpdatable(true) : new DClobUpdatable(clob.getAsciiStream());
57         }
58         catch (SQLException ex) {
59             return null;
60         }
61     }
62
63     public static FieldBase getFieldBase(Date JavaDoc date){
64         BufferRange buffer = date == null ? FieldUtility.NULLBUFFERRANGE : new BufferRange(CCzufDpowfsufs.getBytes(date));
65         return new FieldDate(buffer,Datatypes.DATE);
66     }
67
68     public static FieldBase getFieldBase(Double JavaDoc d, int datatype){
69         BufferRange buffer = d == null ? FieldUtility.NULLBUFFERRANGE : new BufferRange(CCzufDpowfsufs.getBytes(d));
70        return new FieldDouble(buffer,datatype);
71     }
72
73     public static FieldBase getFieldBase(Integer JavaDoc i, int datatype){
74         BufferRange buffer = i == null ? FieldUtility.NULLBUFFERRANGE : new BufferRange(CCzufDpowfsufs.getBytes(i));
75        return new FieldInteger(buffer,datatype);
76     }
77
78     public static FieldBase getFieldBase(Long JavaDoc l, int datatype){
79         BufferRange buffer = l == null ? FieldUtility.NULLBUFFERRANGE : new BufferRange(CCzufDpowfsufs.getBytes(l));
80        return new FieldLong(buffer,datatype);
81     }
82
83     public static FieldBase getFieldBase(Float JavaDoc f, int datatype){
84         BufferRange buffer = f == null ? FieldUtility.NULLBUFFERRANGE : new BufferRange(CCzufDpowfsufs.getBytes(f));
85        return new FieldReal(buffer,datatype);
86     }
87
88     public static FieldBase getFieldBase(Short JavaDoc s, int datatype){
89        BufferRange buffer = s == null ? FieldUtility.NULLBUFFERRANGE : new BufferRange(CCzufDpowfsufs.getBytes(s));
90        return new FieldShort(new BufferRange(CCzufDpowfsufs.getBytes(s)),datatype);
91     }
92
93     public static FieldBase getFieldBase(String JavaDoc str, int datatype,Collator JavaDoc collator){
94         BufferRange buffer = str == null ? FieldUtility.NULLBUFFERRANGE : new BufferRange(CCzufDpowfsufs.getBytes(str,str.length(),collator != null));
95         return new FieldString(buffer,datatype,collator);
96     }
97
98     public static FieldBase getFieldBase(Time JavaDoc time){
99         BufferRange buffer = time == null ? FieldUtility.NULLBUFFERRANGE : new BufferRange(CCzufDpowfsufs.getBytes(time));
100        return new FieldTime(buffer,Datatypes.TIME);
101     }
102
103     public static FieldBase getFieldBase(Timestamp JavaDoc times){
104        BufferRange buffer = times == null ? FieldUtility.NULLBUFFERRANGE : new BufferRange(CCzufDpowfsufs.getBytes(times));
105        return new FieldTimeStamp(buffer,Datatypes.TIMESTAMP);
106     }
107 }
108
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