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Java > Open Source Codes > com > daffodilwoods > daffodildb > server > sql99 > ddl > descriptors > Descriptor


1 package com.daffodilwoods.daffodildb.server.sql99.ddl.descriptors;
2
3 import com.daffodilwoods.daffodildb.server.serversystem.*;
4 import com.daffodilwoods.daffodildb.server.sql99.common.*;
5 import com.daffodilwoods.daffodildb.server.sql99.dql.execution.*;
6 import com.daffodilwoods.daffodildb.server.sql99.dql.iterator.*;
7 import com.daffodilwoods.daffodildb.server.sql99.expression.booleanvalueexpression.*;
8 import com.daffodilwoods.daffodildb.utils.*;
9 import com.daffodilwoods.database.general.*;
10 import com.daffodilwoods.database.resource.*;
11 import com.daffodilwoods.daffodildb.server.datadictionarysystem.DataDictionary;
12
13 public abstract class Descriptor implements _Descriptor {
14    protected void delete(_ServerSession currentSession, QualifiedIdentifier tableName,
15                          booleanvalueexpression condition, Object JavaDoc[] conditionParameters) throws DException {
16       TableDetails tableDetail = new TableDetails();
17       tableDetail.setTableName(tableName.getTableName());
18       _ServerSession systemSession = currentSession.getSystemServerSession();
19       _ServerSession globalSession = currentSession.getGlobalSession();
20       ConditionSingleTableExecuter conSingTE = new ConditionSingleTableExecuter(null,
21           tableDetail, globalSession, condition, null);
22       _Iterator iter = globalSession.getInternalIterator(tableName, conSingTE);
23       iter.setConditionVariableValue(condition.getReferences(new TableDetails[] {
24           tableDetail}), FieldUtility.getFields(conditionParameters), 1);
25       SqlSchemaConstants.delete(systemSession, tableName, iter);
26    }
27
28    protected void deleteColumnDescriptor(_ServerSession currentSession, QualifiedIdentifier tableName,
29                                          booleanvalueexpression condition, Object JavaDoc[] conditionParameters) throws DException {
30       _Iterator columnsIter = ( (DataDictionary) currentSession.getDataDictionary()).getPreparedStatementGetter().getInternalIteratorForColumnDescriptor(currentSession, tableName, condition, conditionParameters);
31       SqlSchemaConstants.delete(currentSession.getSystemServerSession(), tableName, columnsIter);
32    }
33
34    protected void deleteColumnPrivilegeDescriptor(_ServerSession currentSession, QualifiedIdentifier tableName,
35                                                   booleanvalueexpression condition, Object JavaDoc[] conditionParameters) throws DException {
36       _Iterator columnsPrivilegeIter = ( (DataDictionary) currentSession.getDataDictionary()).getPreparedStatementGetter().getInternalIteratorForColumnPrivilegeDescriptor(currentSession, tableName, condition, conditionParameters);
37       SqlSchemaConstants.delete(currentSession.getSystemServerSession(), tableName, columnsPrivilegeIter);
38    }
39
40    protected void deleteTablePrivilegeDescriptor(_ServerSession currentSession, QualifiedIdentifier tableName,
41                                                  booleanvalueexpression condition, Object JavaDoc[] conditionParameters) throws DException {
42       _Iterator tablePrivilegeIter = ( (DataDictionary) currentSession.getDataDictionary()).getPreparedStatementGetter().getInternalIteratorForTablePrivilegeDescriptor(currentSession, tableName, condition, conditionParameters);
43       SqlSchemaConstants.delete(currentSession.getSystemServerSession(), tableName, tablePrivilegeIter);
44    }
45
46    protected void deleteDataTypeDescriptor(_ServerSession currentSession, QualifiedIdentifier tableName,
47                                            booleanvalueexpression condition, Object JavaDoc[] conditionParameters) throws DException {
48       _Iterator dataTypeIter = ( (DataDictionary) currentSession.getDataDictionary()).getPreparedStatementGetter().getInternalIteratorForDataTypeDescriptor(currentSession, tableName, condition, conditionParameters);
49       SqlSchemaConstants.delete(currentSession.getSystemServerSession(), tableName, dataTypeIter);
50    }
51
52    public abstract void load(_ServerSession parm1) throws DException;
53
54    public abstract void save(_ServerSession parm1) throws DException;
55
56    public abstract void delete(_ServerSession parm1) throws DException;
57
58    public abstract int getDescriptorType();
59 }
60
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