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1 package com.daffodilwoods.daffodildb.server.datasystem.indexsystem;
2
3 import com.daffodilwoods.daffodildb.server.datasystem.interfaces._TableCharacteristics;
4 import com.daffodilwoods.daffodildb.server.datasystem.persistentsystem.TableCharacteristics;
5 import com.daffodilwoods.database.resource.DException;
6 import com.daffodilwoods.daffodildb.utils.byteconverter.CbCzufIboemfs;
7 import com.daffodilwoods.daffodildb.server.sql99.common.ColumnDetails;
8 import com.daffodilwoods.daffodildb.server.sql99.common.Datatypes;
9 import com.daffodilwoods.daffodildb.server.datasystem.utility.ByteHandler;
10 import com.daffodilwoods.daffodildb.server.datasystem.persistentsystem.ColumnInformation;
11 import com.daffodilwoods.daffodildb.server.sql99.utils._VariableValues;
12
13 public class IndexColumnInformation {
14
15
16 private boolean isVariable;
17
18 private boolean[] isFixedColumns;
19
20 private int recordSize;
21
22 private int [] sizeOfColumns;
23
24 private int[] typeOfColumns;
25
26
27 private int numberOfvariableColumns;
28
29 private String  [] indexColumnNames;
30
31 private CbCzufIboemfs[] handlers ;
32
33
34 public IndexColumnInformation(ColumnDetails[] columnDetails, _VariableValues vv) throws DException{
35 isVariable = false;
36 int len = columnDetails.length;
37 sizeOfColumns = new int[len];
38 typeOfColumns = new int[len];
39 isFixedColumns = new boolean[len];
40 indexColumnNames = new String [len];
41 handlers = new CbCzufIboemfs[len];
42 for (int i = 0; i < len; i++) {
43 indexColumnNames[i] = columnDetails[i].getColumn();
44 columnDetails[i].setByteComparisonObject(vv);
45 typeOfColumns[i] = columnDetails[i].getDatatypeForOrder();
46 if (typeOfColumns[i] == Datatypes.NUMERIC ||
47 typeOfColumns[i] == Datatypes.DECIMAL ||
48 typeOfColumns[i] == Datatypes.DEC
49 || typeOfColumns[i] == Datatypes.BIGDECIMAL ||
50 typeOfColumns[i] == Datatypes.VARCHAR
51 || typeOfColumns[i] == Datatypes.CHARACTERVARYING ||
52 typeOfColumns[i] == Datatypes.CHARVARYING
53 || typeOfColumns[i] == Datatypes.BITVARYING ||
54 typeOfColumns[i] == Datatypes.VARBINARY ||
55 typeOfColumns[i] == Datatypes.NUMBER ||
56 typeOfColumns[i] == Datatypes.CHAR ||
57 typeOfColumns[i] == Datatypes.CHARACTER) {
58 isFixedColumns[i] = false;
59 isVariable = true;
60 }
61 else {
62 sizeOfColumns[i] = columnDetails[i].getSizeForOrder();
63 isFixedColumns[i] = true;
64 }
65 handlers[i] = ByteHandler.getByteHandler(typeOfColumns[i],
66 typeOfColumns[i], null);
67 if (isFixedColumns[i])
68 recordSize = recordSize + sizeOfColumns[i];
69 else
70 numberOfvariableColumns++;
71 }
72 }
73
74
75 public IndexColumnInformation(_TableCharacteristics tc,Object [][] columnInformations0,boolean isVariable0) throws DException{
76 int len = columnInformations0.length;
77 sizeOfColumns = new int[len];
78 typeOfColumns = new int[len];
79 isFixedColumns = new boolean[len];
80 indexColumnNames = new String [len];
81 handlers = new CbCzufIboemfs[len];
82 for( int i = 0,index ; i < len ; i++ ){
83 Object [] columns = (Object [])columnInformations0[i];
84 indexColumnNames[i] = (String )columns[0];
85 index = columns[2].hashCode();
86 sizeOfColumns[i] = ((TableCharacteristics)tc).getColumnSize(index);
87 typeOfColumns[i] = ((TableCharacteristics)tc).getColumnType(index);
88 isFixedColumns[i] = ((TableCharacteristics)tc).isFixedColumn(index);
89 handlers[i] = ((TableCharacteristics)tc).getHandler(index);
90 if(isFixedColumns[i])
91 recordSize = recordSize + sizeOfColumns[i];
92 else
93 numberOfvariableColumns++;
94 }
95 isVariable = isVariable0;
96 }
97
98 public boolean[] getFixedColumns() {
99 return isFixedColumns;
100 }
101
102 public int[] getSizeOfColumns() {
103 return sizeOfColumns;
104 }
105
106 public int numberOfVariableColumns() {
107 return numberOfvariableColumns;
108 }
109
110 public int getRecordSize() {
111 return recordSize;
112 }
113
114 public boolean isVariableColumn() throws DException {
115 return isVariable;
116 }
117
118 public CbCzufIboemfs[] getHandlers() throws DException {
119 return handlers;
120 }
121
122 public int[] getTypeOfColumns() {
123 return typeOfColumns;
124 }
125 public String [] getIndexColumnNames() {
126 return indexColumnNames;
127 }
128 }
129 |
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