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1 package com.daffodilwoods.daffodildb.server.sql99.expression.expressionprimary;
2
3 import java.util.*;
4
5 import com.daffodilwoods.daffodildb.server.sql99.common.*;
6 import com.daffodilwoods.daffodildb.server.sql99.expression.*;
7 import com.daffodilwoods.daffodildb.server.sql99.expression.rowvalueexpression.*;
8 import com.daffodilwoods.daffodildb.server.sql99.utils.*;
9 import com.daffodilwoods.daffodildb.utils.field.*;
10 import com.daffodilwoods.database.resource.*;
11 import com.daffodilwoods.database.utility.P;
12
13 public class basicidentifierchain extends AbstractValueExpression implements columnreference, TypeConstants, Datatypes {
14
15 public identifierchain _basicidentifierchain0;
16 private boolean firstTime;
17 private ColumnDetails columnDetail;
18
19 public Object  run(Object object) throws com.daffodilwoods.database.resource.DException {
20
21 _BaseVariableValues vValues = (_BaseVariableValues) object;
22 if (!firstTime) {
23 firstTime = true;
24 getColumnDetails();
25 FieldBase fb = columnDetail.getType() == REFERENCE || columnDetail.getUnderLyingReference() ? (FieldBase) vValues.field(columnDetail)
26 : (FieldBase) columnDetail.run(vValues);
27 if (columnDetail.getType() == REFERENCE && (columnDetail.getDatatype() == CHAR ||
28 columnDetail.getDatatype() == CHARACTER || columnDetail.getDatatype() == VARCHAR ||
29 columnDetail.getDatatype() == CHARACTERVARYING || columnDetail.getDatatype() == CHARVARYING)) {
30 if (columnDetail.getTable() != null) {
31 fb.setCollator(columnDetail.getTable().getColumnCharacteristics().getCollator());
32 }
33 }
34 return fb;
35 }
36 return columnDetail.getType() == REFERENCE || columnDetail.getUnderLyingReference() ? vValues.field(columnDetail)
37 : columnDetail.run(vValues);
38 }
39
40
48 public Object runNonSharable(Object object) throws DException {
49 _BaseVariableValues vValues = (_BaseVariableValues) object;
50 if (!firstTime) {
51 firstTime = true;
52 getColumnDetails();
53 FieldBase fb = (FieldBase) vValues.getColumnValues(columnDetail);
54 if (columnDetail.getType() == REFERENCE && (columnDetail.getDatatype() == CHAR ||
55 columnDetail.getDatatype() == CHARACTER || columnDetail.getDatatype() == VARCHAR ||
56 columnDetail.getDatatype() == CHARACTERVARYING || columnDetail.getDatatype() == CHARVARYING)) {
57 if (columnDetail.getTable() != null) {
58 fb.setCollator(columnDetail.getTable().getColumnCharacteristics().getCollator());
59 }
60 }
61 return fb;
62 }
63 return vValues.getColumnValues(columnDetail);
64 }
65
66 public ParameterInfo[] getParameterInfo() throws DException {
67 ParameterInfo parameterInfo = new ParameterInfo();
68 parameterInfo.setName(columnDetail.getStringOfColumn());
69 parameterInfo.setDataType(columnDetail.getDatatype());
70 return new ParameterInfo[] {parameterInfo};
71 }
72
73 public AbstractRowValueExpression[] getChilds() {
74 AbstractRowValueExpression[] childs = new AbstractRowValueExpression[] {};
75 return childs;
76 }
77
78 public ColumnDetails[] getColumnDetails() throws DException {
79 if (columnDetails == null) {
80 columnDetail = new ColumnDetails();
81 columnDetail.setType(REFERENCE);
82 columnDetail.setObject(this); String [] name1 = (String []) _basicidentifierchain0.run(null);
84 columnDetail.setColumnName(name1);
85 columnDetails = new ColumnDetails[] {columnDetail};
86 }
87 return columnDetails;
88 }
89
90 public int getCardinality() throws DException {
91 return 1;
92 }
93
94 public _Reference[] getReferences(TableDetails[] tableDetails) throws DException {
95 if (columnDetail == null) {
96 getColumnDetails();
97 }
98 if (columnDetail.checkSessionConditionFlag() || tableDetails == null || (columnDetail.getType() != REFERENCE && !columnDetail.getUnderLyingReference())) {
99 return null;
100 }
101 TableDetails td = columnDetail.getTable();
102 if (td == null) {
103 return new _Reference[] {columnDetail};
104 }
105
106 int i = 0, length = tableDetails.length;
107 for (; i < length; i++) {
108 if (tableDetails[i] == td) {
109 break;
110 }
111 }
112 _Reference[] ref = i == length ? new _Reference[] { (_Reference) columnDetail}
113 : null;
114 return ref;
115 }
116
117 public void getColumnsIncluded(ArrayList aList) throws DException {
118 if (columnDetail == null) {
119 columnDetail = getColumnDetails()[0];
120 }
121 aList.add(columnDetail.getColumnName());
122 }
123
124
130 public com.daffodilwoods.daffodildb.server.sql99.utils._Reference[] checkSemantic(com.daffodilwoods.daffodildb.server.serversystem._ServerSession parent) throws DException {
131 return null;
132 }
133
134 public String toString() {
135 StringBuffer sb = new StringBuffer ();
136 sb.append(" ");
137 sb.append(_basicidentifierchain0);
138 return sb.toString();
139 }
140
141 public Object clone() throws CloneNotSupportedException {
142 try {
143 identifierchain Identifierchain = (identifierchain) _basicidentifierchain0.clone();
144 basicidentifierchain Basicidentifierchain = new basicidentifierchain();
145 Basicidentifierchain._basicidentifierchain0 = Identifierchain;
146 Basicidentifierchain.columnDetail = (ColumnDetails) getColumnDetails()[0].clone(); Basicidentifierchain.columnDetails = new ColumnDetails[] {Basicidentifierchain.columnDetail};
148 return Basicidentifierchain;
149 } catch (Exception E) {
150 throw new RuntimeException ("EXCEPTION");
151 }
152 }
153
154 public void getTablesIncluded(ArrayList aList) throws DException {
155 }
156
157 public ByteComparison getByteComparison(Object object) throws DException {
158 return columnDetail.canUseByteComparison() ? new ByteComparison(true, new int[] {columnDetail.getDatatype()})
159 : new ByteComparison(false, new int[] {columnDetail.getDatatype()});
160 }
161
162 public void releaseResource() throws DException {
163
164 }
165
166 }
167 |
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