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1 package com.daffodilwoods.daffodildb.server.sql99.ddl.schemamanipulation;
2
3 import com.daffodilwoods.daffodildb.server.sql99.ddl.schemadefinition.
4 defaultclause;
5 import com.daffodilwoods.daffodildb.server.sql99.token.*;
6 import com.daffodilwoods.database.resource.*;
7 import com.daffodilwoods.daffodildb.server.sql99.ddl.descriptors.
8 DomainDescriptor;
9 import com.daffodilwoods.daffodildb.server.sql99.ddl.descriptors._Descriptor;
10 import com.daffodilwoods.daffodildb.server.sql99.utils._Reference;
11 import com.daffodilwoods.daffodildb.server.serversystem._ServerSession;
12 import com.daffodilwoods.daffodildb.server.sql99.ddl.descriptors.ColumnDescriptor;
13 import com.daffodilwoods.daffodildb.server.sql99.ddl.utility.QueryMaker;
14 import java.util.ArrayList  ;
15 import com.daffodilwoods.daffodildb.server.sql99.dql.iterator._Iterator;
16 import com.daffodilwoods.daffodildb.server.sql99.ddl.descriptors.SqlSchemaConstants;
17 import com.daffodilwoods.daffodildb.server.sql99.dql.iterator._SelectQueryIterator;
18 import com.daffodilwoods.daffodildb.server.sql99.ddl.descriptors.SystemTablesFields;
19 import com.daffodilwoods.database.general.QualifiedIdentifier;
20
21 public class setdomaindefaultclause
22 implements alterdomainaction {
23 public defaultclause _defaultclause0;
24 public SRESERVEDWORD1206543922 _SRESERVEDWORD12065439221;
25
26
27
28
29 private DomainDescriptor domainDescriptor;
30 private ArrayList tableList;
31 public void setDomainDescriptor(_Descriptor domainDes) throws
32 DException {
33 domainDescriptor = (DomainDescriptor) domainDes;
34 }
35
36
37 public Object run(Object object) throws DException {
38 _ServerSession serverSession = (_ServerSession) object;
39 _ServerSession systemSession = serverSession.getSystemServerSession();
40 _defaultclause0.setDataTypeDescriptor(domainDescriptor.dataTypeDescriptor);
41 String defaultExpression = (String )_defaultclause0.run(object);
42 if(!(defaultExpression.equalsIgnoreCase(domainDescriptor.default_clause ))){
43 domainDescriptor.default_clause = defaultExpression;
44 updateDomainDefault(serverSession);
45 updateColumnsDefault(serverSession,defaultExpression);
46 }
47 refreshServerSystem(systemSession, domainDescriptor);
48 return null;
49 }
50
51 private void refreshServerSystem(_ServerSession systemSession,
52 DomainDescriptor domainDescriptor) throws
53 DException {
54 if(tableList!=null)
55 {
56 for (int i=0, size=tableList.size();i<size;i++)
57 {
58 QualifiedIdentifier tableName=(QualifiedIdentifier)tableList.get(i);
59 systemSession.deleteTable(tableName, false);
60 }
61 }
62 }
63
64 private void updateDomainDefault(_ServerSession currentSession) throws DException{
65 domainDescriptor.update(currentSession,
66 new int[] {
67 SystemTablesFields.domain_default_clause} ,new Object [] {null});
68 }
69
70 private void updateColumnsDefault(_ServerSession currentSession,String defaultValue) throws DException{
71 ArrayList columnDescriptors = domainDescriptor.getColumnDescriptorsForDomain(currentSession);
72 if (columnDescriptors != null) {
73 int size = columnDescriptors.size();
74 tableList = new ArrayList (size);
75 for (int i = 0; i < size; i++) {
76 ColumnDescriptor columnDescriptor = (ColumnDescriptor) columnDescriptors.get(i);
77 QualifiedIdentifier tableName = columnDescriptor.getQualifiedTableName();
78 if(!tableList.contains(tableName))
79 tableList.add(tableName);
80 columnDescriptor.update(currentSession,
81 new int[] {
82 SystemTablesFields.columns_column_default} ,new Object [] {defaultValue});
83 }
84 }
85 }
86
87
88 public Object clone() throws CloneNotSupportedException {
89 return this;
90 }
91 public String toString()
92 {
93 StringBuffer sb = new StringBuffer ();
94 sb.append(" ");
95 sb.append(_SRESERVEDWORD12065439221);
96 sb.append(" ");
97 sb.append(_defaultclause0);
98 return sb.toString();
99 }
100 }
101 |
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