489 lines
14 KiB
C++
489 lines
14 KiB
C++
|
//+---------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Microsoft Windows
|
||
|
|
// Copyright (C) Microsoft Corporation, 1992 - 2000.
|
||
|
|
//
|
||
|
|
// File: dbcmdop.cxx
|
||
|
|
//
|
||
|
|
// Contents: Wrapper classes for DBCOMMANDTREE structure
|
||
|
|
//
|
||
|
|
// Classes: CDbSelectNode
|
||
|
|
// CDbProjectNode
|
||
|
|
// CDbProjectListAnchor
|
||
|
|
// CDbSortNode
|
||
|
|
// CDbSortListAnchor
|
||
|
|
// CDbNestingNode
|
||
|
|
//
|
||
|
|
// History: 6-15-95 srikants Created
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
#include <pch.cxx>
|
||
|
|
#pragma hdrstop
|
||
|
|
|
||
|
|
//+---------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Method: CDbSelectNode::CDbSelectNode
|
||
|
|
//
|
||
|
|
// Synopsis: Construct a select node.
|
||
|
|
//
|
||
|
|
// Arguments: -NONE-
|
||
|
|
//
|
||
|
|
// History: 6-15-95 srikants Created
|
||
|
|
//
|
||
|
|
// Notes: Only the normal select can be created. For OFS,
|
||
|
|
// order-preserving functions identially with normal select.
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
CDbSelectNode::CDbSelectNode( )
|
||
|
|
: CDbCmdTreeNode( DBOP_select )
|
||
|
|
{
|
||
|
|
CDbTableId * pTableId = new CDbTableId( DBTABLEID_NAME );
|
||
|
|
|
||
|
|
if ( 0 != pTableId )
|
||
|
|
{
|
||
|
|
if ( pTableId->IsValid() )
|
||
|
|
{
|
||
|
|
InsertChild( pTableId );
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
delete pTableId;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//+---------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Method: CDbSelectNode::SetRestriction
|
||
|
|
//
|
||
|
|
// Synopsis: Set the restriction expression
|
||
|
|
//
|
||
|
|
// Arguments: [pRestr] - restriction expression to be set.
|
||
|
|
//
|
||
|
|
// History: 6-15-95 srikants Created
|
||
|
|
//
|
||
|
|
// Notes:
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
BOOL CDbSelectNode::SetRestriction( CDbCmdTreeNode * pRestr )
|
||
|
|
{
|
||
|
|
if ( IsValid() &&
|
||
|
|
GetFirstChild() &&
|
||
|
|
GetFirstChild()->GetNextSibling() != 0 )
|
||
|
|
{
|
||
|
|
//
|
||
|
|
// Restriction expression already set on node. Remove and
|
||
|
|
// replace it.
|
||
|
|
//
|
||
|
|
|
||
|
|
CDbCmdTreeNode * pTableNode = RemoveFirstChild();
|
||
|
|
CDbCmdTreeNode * pOldRst = RemoveFirstChild();
|
||
|
|
|
||
|
|
Win4Assert( 0 == GetFirstChild() ); // don't expect any more children
|
||
|
|
|
||
|
|
delete pOldRst;
|
||
|
|
InsertChild(pTableNode);
|
||
|
|
}
|
||
|
|
return AddRestriction(pRestr);
|
||
|
|
}
|
||
|
|
|
||
|
|
//+---------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Member: CDbListAnchor::_AppendListElement
|
||
|
|
//
|
||
|
|
// Synopsis: Helper function to add a list-element node and the given
|
||
|
|
// column node to the anchor.
|
||
|
|
//
|
||
|
|
// Arguments: [eleType] - The type of the element node.
|
||
|
|
// [pColumn] - The column specification node. This will be made
|
||
|
|
// the child of the newly created list element.
|
||
|
|
//
|
||
|
|
// Returns: TRUE if successful; FALSE otherwise.
|
||
|
|
//
|
||
|
|
// History: 11-16-95 srikants Created
|
||
|
|
//
|
||
|
|
// Notes:
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
BOOL CDbListAnchor::_AppendListElement( DBCOMMANDOP eleType, CDbColumnNode * pColumn )
|
||
|
|
{
|
||
|
|
Win4Assert( _IsValidListElement( eleType ) );
|
||
|
|
|
||
|
|
Win4Assert( 0 != pColumn );
|
||
|
|
CDbCmdTreeNode * pLE = new CDbCmdTreeNode( eleType );
|
||
|
|
|
||
|
|
if ( 0 != pLE )
|
||
|
|
{
|
||
|
|
pLE->InsertChild( pColumn );
|
||
|
|
AppendChild( pLE );
|
||
|
|
}
|
||
|
|
|
||
|
|
return (0 != pLE);
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
//+---------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Method: CDbListAnchor::AppendList, protected
|
||
|
|
//
|
||
|
|
// Synopsis: Appends a list of elements to a list anchor
|
||
|
|
//
|
||
|
|
// Arguments: [pListElement] - pointer to head list element
|
||
|
|
//
|
||
|
|
// Returns: BOOL - TRUE if successful, FALSE otherwise
|
||
|
|
//
|
||
|
|
// History: 17 Aug 1995 AlanW Created
|
||
|
|
//
|
||
|
|
// Notes:
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
BOOL CDbListAnchor::AppendList( CDbCmdTreeNode * pListElement )
|
||
|
|
{
|
||
|
|
Win4Assert( _IsValidListElement( pListElement->GetCommandType() ));
|
||
|
|
Win4Assert( pListElement->GetFirstChild() != 0 );
|
||
|
|
|
||
|
|
AppendChild( pListElement );
|
||
|
|
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
//+---------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Method: CDbListAnchor::AppendListElement, protected
|
||
|
|
//
|
||
|
|
// Synopsis: Appends a single element to a list anchor
|
||
|
|
//
|
||
|
|
// Arguments: [pListElement] - pointer to list element
|
||
|
|
//
|
||
|
|
// Returns: BOOL - TRUE if successful, FALSE otherwise
|
||
|
|
//
|
||
|
|
// History: 17 Aug 1995 AlanW Created
|
||
|
|
//
|
||
|
|
// Notes:
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
BOOL CDbListAnchor::AppendListElement( CDbCmdTreeNode * pListElement )
|
||
|
|
{
|
||
|
|
Win4Assert( _IsValidListElement( pListElement->GetCommandType() ) &&
|
||
|
|
pListElement->GetNextSibling() == 0 );
|
||
|
|
|
||
|
|
Win4Assert( pListElement->GetFirstChild() != 0 );
|
||
|
|
|
||
|
|
AppendChild( pListElement );
|
||
|
|
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//+---------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Method: CDbListAnchor::AppendListElement, protected
|
||
|
|
//
|
||
|
|
// Synopsis:
|
||
|
|
//
|
||
|
|
// Arguments: [eleType] - list element type
|
||
|
|
// [PropSpec] - Full property spec of column to add
|
||
|
|
//
|
||
|
|
// Returns: BOOL - TRUE if successful, FALSE otherwise
|
||
|
|
//
|
||
|
|
// History: 6-15-95 srikants Created
|
||
|
|
//
|
||
|
|
// Notes:
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
BOOL CDbListAnchor::AppendListElement( DBCOMMANDOP eleType,
|
||
|
|
const DBID & PropSpec)
|
||
|
|
{
|
||
|
|
XPtr<CDbColumnNode> pColumn( new CDbColumnNode( PropSpec, TRUE ) );
|
||
|
|
|
||
|
|
if ( 0 == pColumn.GetPointer() || !pColumn->IsValid() )
|
||
|
|
return FALSE;
|
||
|
|
|
||
|
|
if ( _AppendListElement( eleType, pColumn.GetPointer() ) )
|
||
|
|
{
|
||
|
|
pColumn.Acquire();
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//+---------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Method: CDbProjectListAnchor::AppendListElement, public
|
||
|
|
//
|
||
|
|
// Synopsis: Add a project_list_element node to the end of the list
|
||
|
|
//
|
||
|
|
// Arguments: [propSpec] - column to be added to the list
|
||
|
|
// [pwszName] - name of column
|
||
|
|
//
|
||
|
|
// Returns: BOOL - TRUE if successful, FALSE otherwise
|
||
|
|
//
|
||
|
|
// History: 6-15-95 srikants Created
|
||
|
|
//
|
||
|
|
// Notes:
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
BOOL CDbProjectListAnchor::AppendListElement( const DBID & propSpec, LPWSTR pwszName )
|
||
|
|
{
|
||
|
|
BOOL fSuccess = FALSE;
|
||
|
|
|
||
|
|
XPtr<CDbProjectListElement> pListElem( new CDbProjectListElement( ) );
|
||
|
|
if ( 0 == pListElem.GetPointer() )
|
||
|
|
return FALSE;
|
||
|
|
|
||
|
|
if ( !pListElem->SetName(pwszName) )
|
||
|
|
return FALSE;
|
||
|
|
|
||
|
|
XPtr<CDbColumnNode> pColumn( new CDbColumnNode( propSpec, TRUE ) );
|
||
|
|
if ( 0 == pColumn.GetPointer() || !pColumn->IsValid() )
|
||
|
|
return FALSE;
|
||
|
|
|
||
|
|
if ( pListElem->SetColumn( pColumn.GetPointer() ) )
|
||
|
|
pColumn.Acquire();
|
||
|
|
else
|
||
|
|
return FALSE;
|
||
|
|
|
||
|
|
AppendChild( pListElem.GetPointer() );
|
||
|
|
pListElem.Acquire();
|
||
|
|
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
//+---------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Method: CDbProjectNode::_FindOrAddAnchor, private
|
||
|
|
//
|
||
|
|
// Synopsis: Return the project list anchor node. Add one if there
|
||
|
|
// isn't one.
|
||
|
|
//
|
||
|
|
// Returns: CDbProjectListAnchor* - pointer to the anchor node, or NULL
|
||
|
|
// if there was an allocation failure.
|
||
|
|
//
|
||
|
|
// History: 6-15-95 srikants Created
|
||
|
|
//
|
||
|
|
// Notes:
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
CDbProjectListAnchor * CDbProjectNode::_FindOrAddAnchor()
|
||
|
|
{
|
||
|
|
CDbCmdTreeNode * pChild = GetFirstChild();
|
||
|
|
|
||
|
|
while ( 0 != pChild )
|
||
|
|
{
|
||
|
|
if (pChild->IsListAnchor())
|
||
|
|
{
|
||
|
|
Win4Assert( DBOP_project_list_anchor == pChild->GetCommandType() );
|
||
|
|
return (CDbProjectListAnchor *)pChild;
|
||
|
|
}
|
||
|
|
|
||
|
|
pChild = pChild->GetNextSibling();
|
||
|
|
}
|
||
|
|
|
||
|
|
CDbProjectListAnchor * pAnchor = new CDbProjectListAnchor();
|
||
|
|
if ( 0 != pAnchor )
|
||
|
|
{
|
||
|
|
AppendChild( pAnchor );
|
||
|
|
}
|
||
|
|
|
||
|
|
return pAnchor;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//+---------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Method: CDbSortNode::_FindOrAddAnchor, private
|
||
|
|
//
|
||
|
|
// Synopsis: Return the sort list anchor node. Add one if there
|
||
|
|
// isn't one.
|
||
|
|
//
|
||
|
|
// Returns: CDbSortListAnchor* - pointer to the anchor node, or NULL
|
||
|
|
// if there was an allocation failure.
|
||
|
|
//
|
||
|
|
// History: 6-15-95 srikants Created
|
||
|
|
//
|
||
|
|
// Notes: We should probably implement this in a base class
|
||
|
|
// with the method taking the list anchor type.
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
CDbSortListAnchor * CDbSortNode::_FindOrAddAnchor()
|
||
|
|
{
|
||
|
|
CDbCmdTreeNode * pChild = GetFirstChild();
|
||
|
|
|
||
|
|
while ( 0 != pChild )
|
||
|
|
{
|
||
|
|
if (pChild->IsListAnchor())
|
||
|
|
{
|
||
|
|
Win4Assert( DBOP_sort_list_anchor == pChild->GetCommandType() );
|
||
|
|
return (CDbSortListAnchor *)pChild;
|
||
|
|
}
|
||
|
|
|
||
|
|
pChild = pChild->GetNextSibling();
|
||
|
|
}
|
||
|
|
|
||
|
|
CDbSortListAnchor * pAnchor = new CDbSortListAnchor();
|
||
|
|
if ( 0 != pAnchor )
|
||
|
|
{
|
||
|
|
AppendChild( pAnchor );
|
||
|
|
}
|
||
|
|
|
||
|
|
return pAnchor;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//+---------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Method: CDbSortNode::AddSortColumn, public
|
||
|
|
//
|
||
|
|
// Synopsis: Add a sort column to the sort list.
|
||
|
|
//
|
||
|
|
// Returns: TRUE if successful, FALSE otherwise (allocation failure).
|
||
|
|
//
|
||
|
|
// History: 17 Aug 1995 AlanW Created
|
||
|
|
//
|
||
|
|
// Notes: Sort lists consist of a sort list anchor, with a chain
|
||
|
|
// of sort list elements as children. Each sort list element
|
||
|
|
// has information pertaining to the sort (direction and locale)
|
||
|
|
// and one child which is a column specification.
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
BOOL CDbSortNode::AddSortColumn(DBID const & propSpec,
|
||
|
|
BOOL fDirection,
|
||
|
|
LCID locale)
|
||
|
|
{
|
||
|
|
CDbSortListAnchor * pAnchor = _FindOrAddAnchor();
|
||
|
|
XPtr<CDbColumnNode> pCol( new CDbColumnNode( propSpec, TRUE ) );
|
||
|
|
|
||
|
|
if ( 0 == pCol.GetPointer() || 0 == pAnchor || !pCol->IsValid() )
|
||
|
|
return FALSE;
|
||
|
|
|
||
|
|
CDbSortListElement * pSortInfo = new CDbSortListElement( fDirection,
|
||
|
|
locale );
|
||
|
|
if ( 0 != pSortInfo )
|
||
|
|
{
|
||
|
|
if ( pSortInfo->IsValid() )
|
||
|
|
{
|
||
|
|
pSortInfo->AddColumn( pCol.Acquire() );
|
||
|
|
if ( pAnchor->AppendListElement( pSortInfo ) )
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
delete pSortInfo;
|
||
|
|
}
|
||
|
|
|
||
|
|
return FALSE;
|
||
|
|
} //AddSortColumn
|
||
|
|
|
||
|
|
|
||
|
|
//+---------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Method: CDbNestingNode::AddTable, public
|
||
|
|
//
|
||
|
|
// Synopsis: Add a table node to a nesting. Remove an existing
|
||
|
|
// table node if there is one there.
|
||
|
|
//
|
||
|
|
// Arguments: [pTable] - node to be added to tree. Ownership passes
|
||
|
|
// to the command tree.
|
||
|
|
//
|
||
|
|
// Returns: BOOL - TRUE if operation worked
|
||
|
|
//
|
||
|
|
// History: 08 Aug 1995 AlanW Created
|
||
|
|
//
|
||
|
|
// Notes: Nesting nodes are expected to have 0, 1, 4 or 5 child
|
||
|
|
// nodes depending upon whether AddTable and _FindGroupListAnchor
|
||
|
|
// have been called.
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
BOOL CDbNestingNode::AddTable( CDbCmdTreeNode * pTable )
|
||
|
|
{
|
||
|
|
Win4Assert (! pTable->IsListAnchor());
|
||
|
|
|
||
|
|
CDbCmdTreeNode * pChild = GetFirstChild();
|
||
|
|
|
||
|
|
if ( 0 != pChild && ! pChild->IsListAnchor())
|
||
|
|
{
|
||
|
|
// Found a table??? Assert on this; we could be nice to the
|
||
|
|
// caller and replace it.
|
||
|
|
Win4Assert ( ! pChild->IsListAnchor() );
|
||
|
|
return FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
InsertChild( pTable );
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
//+---------------------------------------------------------------------------
|
||
|
|
//
|
||
|
|
// Method: CDbNestingNode::_FindGroupListAnchor, private
|
||
|
|
//
|
||
|
|
// Synopsis: Return the group list anchor node. If there is none,
|
||
|
|
// add it and the parent list node, the child list node and
|
||
|
|
// the grouping column node.
|
||
|
|
//
|
||
|
|
// Returns: CDbProjectListAnchor* - pointer to the anchor node, or NULL
|
||
|
|
// if there was an allocation failure.
|
||
|
|
//
|
||
|
|
// History: 08 Aug 1995 AlanW Created
|
||
|
|
//
|
||
|
|
// Notes: Nesting nodes are expected to have 0, 1, 4 or 5 child
|
||
|
|
// nodes depending upon whether AddTable and _FindGroupListAnchor
|
||
|
|
// have been called.
|
||
|
|
//
|
||
|
|
//----------------------------------------------------------------------------
|
||
|
|
|
||
|
|
CDbProjectListAnchor * CDbNestingNode::_FindGroupListAnchor()
|
||
|
|
{
|
||
|
|
CDbCmdTreeNode * pChild = GetFirstChild();
|
||
|
|
|
||
|
|
if ( 0 != pChild )
|
||
|
|
{
|
||
|
|
if (! pChild->IsListAnchor())
|
||
|
|
{
|
||
|
|
pChild = pChild->GetNextSibling();
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( 0 != pChild )
|
||
|
|
{
|
||
|
|
Win4Assert( DBOP_project_list_anchor == pChild->GetCommandType() );
|
||
|
|
return (CDbProjectListAnchor *)pChild;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
XPtr<CDbProjectListAnchor> pGroupList = new CDbProjectListAnchor();
|
||
|
|
XPtr<CDbProjectListAnchor> pParentList = new CDbProjectListAnchor();
|
||
|
|
XPtr<CDbProjectListAnchor> pChildList = new CDbProjectListAnchor();
|
||
|
|
XPtr<CDbColumnNode> pGroupColumn = new CDbColumnNode(
|
||
|
|
//, PROPID_CHAPTER
|
||
|
|
);
|
||
|
|
|
||
|
|
if ( ! pGroupList.IsNull() &&
|
||
|
|
! pParentList.IsNull() &&
|
||
|
|
! pChildList.IsNull() &&
|
||
|
|
! pGroupColumn.IsNull() )
|
||
|
|
{
|
||
|
|
pGroupList->AppendSibling(pGroupColumn.Acquire());
|
||
|
|
pGroupList->InsertSibling(pChildList.Acquire());
|
||
|
|
pGroupList->InsertSibling(pParentList.Acquire());
|
||
|
|
AppendChild(pGroupList.GetPointer());
|
||
|
|
return pGroupList.Acquire();
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|