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1 package com.daffodilwoods.daffodildb.server.sql99.dql.iterator.table;
2
3 import com.daffodilwoods.daffodildb.server.datasystem.utility.*;
4 import com.daffodilwoods.daffodildb.server.sql99.common.*;
5 import com.daffodilwoods.daffodildb.server.sql99.dql.iterator.*;
6 import com.daffodilwoods.daffodildb.server.sql99.utils.*;
7 import com.daffodilwoods.daffodildb.utils.field.*;
8 import com.daffodilwoods.database.resource.*;
9
10
22 public class BaseIterator extends BaseExceptionSingleIterator implements _Iterator {
23
24 private TableDetails tableDetails;
25 private _Record record;
26 private int state = 2;
27
28 public BaseIterator(_Record record0, TableDetails tableDetails0) {
29 tableDetails = tableDetails0;
30 record = record0;
31 }
32
33 public TableDetails[] getTableDetails() throws DException {
34 return new TableDetails[] {tableDetails};
35 }
36
37 public _Iterator getBaseIterator(ColumnDetails column) throws DException {
38 return this;
39 }
40
41 public void setConditionVariableValue(_Reference[] references, Object  [] values, int priority) throws DException {
42 }
43
44 public Object getColumnValues() throws DException {
45 Object object = record.getObject();
46 return object;
47 }
48
49 public _KeyColumnInformation[] getKeyColumnInformations() throws DException {
50 return new _KeyColumnInformation[0];
51 }
52
53 public Object getColumnValues(_Reference[] reference) throws DException {
54 int length = reference.length;
55 Object [] result = new Object [length];
56 for (int i = 0; i < length; i++) {
57 result[i] = record.getObject(reference[i].getColumn());
58 }
59 return result;
60 }
61
62 public Object getColumnValues(_Reference reference) throws DException {
63 Object value = record.getObject(reference.getColumn());
64 return value;
65 }
66
67 public boolean first() throws DException {
68 state = 0;
69 return true;
70 }
71
72 public boolean last() throws DException {
73 state = 0;
74 return true;
75 }
76
77 public boolean next() throws DException {
78 if (state == -1) {
79 state = 0;
80 return true;
81 }
82 if (state == 1) {
83 throw new DException("DSE3553", null);
84 }
85 state = 1;
86 return false;
87 }
88
89 public boolean previous() throws DException {
90 if (state == 1) {
91 state = 0;
92 return true;
93 }
94 if (state == -1) {
95 throw new DException("DSE3553", null);
96 }
97 state = -1;
98 return false;
99 }
100
101 public _Record getRecord() throws DException {
102 return (Record) record;
103 }
104
105 public String toString() {
106 return " BaseIterator ";
107 }
108
109 public FieldBase field(_Reference reference) throws com.daffodilwoods.database.resource.DException {
110 FieldBase value = (FieldBase) record.getObject(reference.getColumn());
111 return value;
112 }
113
114 public FieldBase[] fields(_Reference[] references) throws com.daffodilwoods.database.resource.DException {
115 int length = references.length;
116 FieldBase[] result = new FieldBase[length];
117 for (int i = 0; i < length; i++) {
118 result[i] = (FieldBase) record.getObject(references[i].getColumn());
119 }
120 return result;
121 }
122
123 public FieldBase[] fields(int[] columns) throws com.daffodilwoods.database.resource.DException {
124 throw new java.lang.UnsupportedOperationException ("Method fields() not yet implemented.");
125 }
126
127 public void setSpecificUnderlyingReferences(_Reference[] specificUnderlyingReferences) throws DException{
128 }
129
130 public void releaseResource() throws DException {
131 }
132 }
133 |
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