derivedtable


1   package com.daffodilwoods.daffodildb.server.sql99.dql.tableexpression.fromclause;
2   
3   import java.util.*;
4   
5   import com.daffodilwoods.daffodildb.server.datadictionarysystem.*;
6   import com.daffodilwoods.daffodildb.server.sql99.common.*;
7   import com.daffodilwoods.daffodildb.server.sql99.utils.*;
8   import com.daffodilwoods.database.resource.*;
9   
10  /**
11   * <p>Title: </p>
12   * <p>Description: This class represent 'from subquery'. It is responsible for
13   * providing plan which in turn helps in obtaining the resultset.
14   * e.g select * from (select * from A) as Test
15   * <p>Copyright: Copyright (c) 2003</p>
16   * <p>Company: </p>
17   * @author unascribed
18   * @version 1.0
19   */
20  public class derivedtable implements com.daffodilwoods.daffodildb.utils.parser.StatementExecuter {
21    /**
22     * It represents tablesubquery
23     */
24    public tablesubquery _derivedtable0;
25  
26     /**
27      * Note:-For documentation of following method refers to queryexpressionbody.
28      * @param variableValueOperation
29      * @throws DException
30      */
31     public void setDefaultValues(_VariableValueOperations variableValueOperation) throws DException {
32     }
33  
34     public _Reference[] getReferences(TableDetails[] tableDetails) throws DException {
35        throw new DException("DSE565", new Object  [] {"getReferences()"});
36     }
37  
38     public Object   run(Object   object) throws com.daffodilwoods.database.resource.DException {
39        return _derivedtable0.run(object);
40     }
41  
42     public ColumnDetails[] getColumnDetails() throws DException {
43        return _derivedtable0.getColumnDetails();
44     }
45  
46     public Object  [] getParameters(Object   object) throws DException {
47        return _derivedtable0.getParameters(object);
48     }
49  
50     /**
51      * It checks the semantic of tablesubQuery
52      * it call check semantic method of table subQuery class
53      * @param parent
54      * @return _References[]
55      * @throws DException
56      */
57     public com.daffodilwoods.daffodildb.server.sql99.utils._Reference[] checkSemantic(com.daffodilwoods.daffodildb.server.serversystem._ServerSession parent, boolean checkUserRight) throws DException {
58        return _derivedtable0.checkSemantic(parent, checkUserRight);
59     }
60  
61     public _ColumnCharacteristics getColumnCharacteristics(Object   object) throws DException {
62        return _derivedtable0.getColumnCharacteristics(object);
63     }
64  
65     public void getColumnsIncluded(ArrayList aList) throws DException {
66        _derivedtable0.getColumnsIncluded(aList);
67     }
68  
69     public void getTablesIncluded(ArrayList aList) throws DException {
70        _derivedtable0.getTablesIncluded(aList);
71     }
72  
73     public ParameterInfo[] getParameterInfo() throws DException {
74        return _derivedtable0.getParameterInfo();
75     }
76  
77     public String   toString() {
78        StringBuffer   sb = new StringBuffer  ();
79        sb.append(" ");
80        sb.append(_derivedtable0);
81        return sb.toString();
82     }
83  
84     public Object   clone() throws CloneNotSupportedException   {
85        derivedtable tempClass = new derivedtable();
86        tempClass._derivedtable0 = (tablesubquery) _derivedtable0.clone();
87        return tempClass;
88     }
89  
90  }
91
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