windows-nt/Source/XPSP1/NT/inetsrv/query/icommand/dbcmdbas.cxx

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2020-09-26 03:20:57 -05:00
//+---------------------------------------------------------------------------
//
// Microsoft Windows
// Copyright (C) Microsoft Corporation, 1992 - 2000.
//
// File: dbcmdbas.cxx
//
// Contents: Wrapper classes for DBCOMMANDTREE
//
// Classes: CDbCmdTreeNode
// CDbColumnNode
//
// History: 6-06-95 srikants Created
//
//----------------------------------------------------------------------------
#include <pch.cxx>
#pragma hdrstop
#include <sstream.hxx>
const GUID CDbCmdTreeNode::guidNull = DB_NULLGUID;
inline BOOL IsNotImplemented( WORD wKind )
{
return (wKind & DBVALUEKIND_VECTOR) || (wKind & DBVALUEKIND_ARRAY);
}
//+---------------------------------------------------------------------------
//
// Method: CDbCmdTreeNode::PutWString, static public
//
// Synopsis: Marshal a wide charater string.
//
// Arguments: [stm] - Serialization stream
// [pwszStr] - String to be serialized
//
// Returns: -NOTHING-
//
// History: 6-21-95 srikants Created
//
// Notes:
//
//----------------------------------------------------------------------------
void CDbCmdTreeNode::PutWString( PSerStream & stm,
WCHAR const * pwszStr )
{
ULONG cwc = (0 != pwszStr) ? wcslen( pwszStr ) : 0;
stm.PutULong( cwc );
if (cwc)
stm.PutWChar( pwszStr, cwc );
}
//+---------------------------------------------------------------------------
//
// Method: CDbCmdTreeNode::GetWString, static public
//
// Synopsis: Unmarshal a wide character string.
//
// Arguments: [stm] - Deserialization stream
// [fSuccess] - On return, TRUE if string allocation was successful
// [fBstr] - TRUE if output string should be a BSTR
//
// Returns: WCHAR * - output string, can be null.
//
// History: 6-21-95 srikants Created
//
// Notes:
//
//----------------------------------------------------------------------------
WCHAR * CDbCmdTreeNode::GetWString( PDeSerStream & stm,
BOOL & fSuccess,
BOOL fBstr )
{
ULONG cwc = stm.GetULong();
// Guard against attack
if ( cwc >= 65536 )
{
fSuccess = FALSE;
return 0;
}
fSuccess = TRUE;
if ( 0 == cwc )
{
return 0;
}
WCHAR * pwszStr = 0;
if (fBstr)
{
pwszStr = (WCHAR *)SysAllocStringLen( L"", cwc );
}
else
{
ULONG cb = (cwc+1) * sizeof(WCHAR);
pwszStr = (WCHAR *) CoTaskMemAlloc( cb );
}
if ( 0 == pwszStr )
{
fSuccess = FALSE;
return 0;
}
stm.GetWChar( pwszStr, cwc );
pwszStr[cwc] = L'\0';
return pwszStr;
}
//+---------------------------------------------------------------------------
//
// Method: CDbCmdTreeNode::AllocAndCopyWString, static public
//
// Synopsis:
//
// Arguments: [pSrc] -
//
// Returns:
//
// History: 6-22-95 srikants Created
//
// Notes:
//
//----------------------------------------------------------------------------
WCHAR * CDbCmdTreeNode::AllocAndCopyWString( const WCHAR * pSrc )
{
WCHAR * pDst = 0;
if ( 0 != pSrc )
{
const cb = ( wcslen( pSrc ) + 1 ) * sizeof(WCHAR);
pDst = (WCHAR *) CoTaskMemAlloc( cb );
if ( 0 != pDst )
{
RtlCopyMemory( pDst, pSrc, cb );
}
}
return pDst;
}
//+---------------------------------------------------------------------------
//
// Method: CDbCmdTreeNode::UnMarshallTree, static public
//
// Synopsis:
//
// Arguments: [stm] -
//
// Returns:
//
// History: 6-21-95 srikants Created
//
// Notes:
//
//----------------------------------------------------------------------------
CDbCmdTreeNode * CDbCmdTreeNode::UnMarshallTree( PDeSerStream & stm )
{
CDbCmdTreeNode * pRoot = new CDbCmdTreeNode();
if ( 0 != pRoot )
{
if ( !pRoot->UnMarshall(stm) )
{
delete pRoot;
pRoot = 0;
}
}
return pRoot;
}
void CDbCmdTreeNode::CleanupDataValue()
{
if ( IsNotImplemented(wKind) )
{
Win4Assert( !"Type Not Implemented" );
return;
}
void * pMemToFree = 0;
//
// Deallocate any memory allocated for this node.
//
switch ( wKind )
{
case DBVALUEKIND_EMPTY:
break;
case DBVALUEKIND_WSTR:
pMemToFree = (void *) value.pwszValue;
break;
case DBVALUEKIND_BSTR:
SysFreeString( (BSTR)value.pbstrValue );
break;
case DBVALUEKIND_COMMAND:
if ( 0 != value.pCommand )
{
value.pCommand->Release();
}
break;
case DBVALUEKIND_IDISPATCH:
if ( 0 != value.pDispatch )
{
value.pDispatch->Release();
}
break;
case DBVALUEKIND_MONIKER:
if ( 0 != value.pMoniker )
{
value.pMoniker->Release();
}
break;
case DBVALUEKIND_ROWSET:
if ( 0 != value.pRowset )
{
value.pRowset->Release();
}
break;
case DBVALUEKIND_IUNKNOWN:
if ( 0 != value.pUnknown )
{
value.pUnknown->Release();
}
break;
case DBVALUEKIND_BYGUID:
if ( 0 != value.pdbbygdValue )
{
delete ((CDbByGuid *) value.pdbbygdValue);
}
break;
case DBVALUEKIND_LIKE:
if ( 0 != value.pdblikeValue )
{
delete ((CDbLike *) value.pdblikeValue);
}
break;
case DBVALUEKIND_COLDESC:
Win4Assert(! "DBVALUEKIND_COLDESC unsupported !");
break;
case DBVALUEKIND_ID:
if ( 0 != value.pdbidValue )
{
delete ((CDbColId *) value.pdbidValue);
}
break;
case DBVALUEKIND_CONTENT:
if ( 0 != value.pdbcntntValue )
{
delete ((CDbContent *) value.pdbcntntValue);
}
break;
case DBVALUEKIND_CONTENTPROXIMITY:
if ( 0 != value.pdbcntntproxValue )
{
delete ((CDbContentProximity *) value.pdbcntntproxValue);
}
break;
case DBVALUEKIND_CONTENTSCOPE:
if ( 0 != value.pdbcntntscpValue )
{
delete ((CDbContentScope *) value.pdbcntntscpValue);
}
break;
case DBVALUEKIND_CONTENTTABLE:
if ( 0 != value.pdbcntnttblValue )
{
delete ((CDbContentTable *) value.pdbcntnttblValue);
}
break;
case DBVALUEKIND_CONTENTVECTOR:
if ( 0 != value.pdbcntntvcValue )
{
delete ((CDbContentVector *) value.pdbcntntvcValue );
}
break;
case DBVALUEKIND_GROUPINFO:
if ( 0 != value.pdbgrpinfValue )
{
Win4Assert( !"NYI - DBVALUEKIND_GROUPINFO" );
delete ((CDbGroupInfo *) value.pdbgrpinfValue );
}
break;
case DBVALUEKIND_PARAMETER:
if ( 0 != value.pdbparamValue )
{
Win4Assert( !"NYI - DBVALUEKIND_PARAMETER" );
delete ((CDbParameter *) value.pdbparamValue );
}
break;
case DBVALUEKIND_PROPERTY:
if ( 0 != value.pdbpropValue )
{
Win4Assert( !"NYI - DBVALUEKIND_PROPERTY" );
delete ((CDbPropSet *) value.pdbpropValue);
}
break;
case DBVALUEKIND_SETFUNC:
if ( 0 != value.pdbstfncValue )
{
Win4Assert( !"NYI - DBVALUEKIND_SETFUNC" );
// delete ((CDbSetFunc *) value.pdbstfncValue);
}
break;
case DBVALUEKIND_SORTINFO:
if ( 0 != value.pdbsrtinfValue )
{
delete ((CDbSortInfo *) value.pdbsrtinfValue);
}
break;
case DBVALUEKIND_TEXT:
if ( 0 != value.pdbtxtValue )
{
Win4Assert( !"NYI - DBVALUEKIND_TEXT" );
delete ((CDbText *) value.pdbtxtValue );
}
break;
case DBVALUEKIND_VARIANT:
if ( 0 != value.pvarValue )
{
CStorageVariant * pVarnt = CastToStorageVariant( *value.pvarValue );
delete pVarnt;
}
break;
case DBVALUEKIND_GUID:
pMemToFree = (void *) value.pGuid;
break;
case DBVALUEKIND_BYTES:
pMemToFree = (void *) value.pbValue;
break;
case DBVALUEKIND_STR:
pMemToFree = (void *) value.pzValue;
break;
case DBVALUEKIND_NUMERIC:
delete ((CDbNumeric *) value.pdbnValue );
break;
#if CIDBG==1
case DBVALUEKIND_BOOL:
case DBVALUEKIND_UI1:
case DBVALUEKIND_I1:
case DBVALUEKIND_UI2:
case DBVALUEKIND_I2:
case DBVALUEKIND_I4:
case DBVALUEKIND_UI4:
case DBVALUEKIND_R4:
case DBVALUEKIND_R8:
case DBVALUEKIND_CY:
case DBVALUEKIND_DATE:
case DBVALUEKIND_ERROR:
case DBVALUEKIND_I8:
case DBVALUEKIND_UI8:
break;
default:
Win4Assert( !"Illegal Case Statement" );
#endif // CIDBG==1
};
if ( 0 != pMemToFree )
{
CoTaskMemFree( pMemToFree );
}
RtlZeroMemory( &value, sizeof(value) );
}
//+---------------------------------------------------------------------------
//
// Method: CDbCmdTreeNode::CDbCmdTreeNode, public
//
// Synopsis:
//
// Returns:
//
// History: 6-06-95 srikants Created
//
// Notes:
//
//----------------------------------------------------------------------------
CDbCmdTreeNode::~CDbCmdTreeNode()
{
//
// Unlink pointers before deleting, in case the caller gives
// a tree with cycles.
//
if ( 0 != pctFirstChild )
{
CDbCmdTreeNode * pTree = (CDbCmdTreeNode *)pctFirstChild;
pctFirstChild = 0;
delete pTree;
}
if ( 0 != pctNextSibling )
{
CDbCmdTreeNode * pTree = GetNextSibling();
pctNextSibling = 0;
while ( 0 != pTree)
{
CDbCmdTreeNode * pNext = pTree->GetNextSibling();
pTree->pctNextSibling = 0;
delete pTree;
pTree = pNext;
}
}
CleanupDataValue();
}
//+---------------------------------------------------------------------------
//
// Method: CDbCmdTreeNode::AppendChild, protected
//
// Synopsis: Add a node to the end of the child list.
//
// Arguments: [pChild] -
//
// Returns: Nothing
//
// History: 6-06-95 srikants Created
//
// Notes:
//
//----------------------------------------------------------------------------
void CDbCmdTreeNode::AppendChild( CDbCmdTreeNode *pChild )
{
Win4Assert( 0 != pChild );
if ( 0 == pctFirstChild )
{
pctFirstChild = pChild;
}
else
{
DBCOMMANDTREE * pCurr = pctFirstChild;
while ( 0 != pCurr->pctNextSibling )
{
pCurr = pCurr->pctNextSibling;
}
pCurr->pctNextSibling = pChild;
}
}
//+---------------------------------------------------------------------------
//
// Method: CDbCmdTreeNode::InsertChild, protected
//
// Synopsis: Add a node to the beginning of the child list.
//
// Arguments: [pChild] -
//
// Returns: Nothing
//
// History: 6-06-95 srikants Created
//
// Notes:
//
//----------------------------------------------------------------------------
void CDbCmdTreeNode::InsertChild( CDbCmdTreeNode *pChild )
{
Win4Assert( 0 != pChild );
Win4Assert( 0 == pChild->pctNextSibling );
pChild->pctNextSibling = pctFirstChild;
pctFirstChild = pChild;
}
//+---------------------------------------------------------------------------
//
// Method: CDbCmdTreeNode::SetChildren, protected
//
// Synopsis: Add a list of nodes as children
//
// Arguments: [pChild] - head of list
//
// Returns: Nothing
//
// History: 23 Apr 1997 AlanW Created
//
// Notes: Could be inline if it weren't for the asserts
//
//----------------------------------------------------------------------------
void CDbCmdTreeNode::SetChildren( CDbCmdTreeNode *pChild )
{
Win4Assert( 0 != pChild );
Win4Assert( 0 == pctFirstChild );
pctFirstChild = pChild;
}
//+---------------------------------------------------------------------------
//
// Method: CDbCmdTreeNode::RemoveFirstChild, protected
//
// Synopsis: Unlink first child node and return it.
//
// Arguments: -NONE-
//
// Returns: First child node. NULL if no children.
//
// Notes:
//
// History: 13 July 1995 AlanW Created
//
//----------------------------------------------------------------------------
CDbCmdTreeNode * CDbCmdTreeNode::RemoveFirstChild( )
{
CDbCmdTreeNode * pChild = (CDbCmdTreeNode *)pctFirstChild;
if (0 != pChild)
{
pctFirstChild = pChild->pctNextSibling;
pChild->pctNextSibling = 0;
}
return pChild;
}
//+---------------------------------------------------------------------------
//
// Method: CDbCmdTreeNode::AppendSibling, protected
//
// Synopsis: Append a node to the end of the sibling list
//
// Arguments: [pSibling] - node to be added to the sibling list
//
// Returns: Nothing
//
// History: 6-13-95 srikants Created
//
// Notes: The pSibling may have siblings and children.
//
//----------------------------------------------------------------------------
void CDbCmdTreeNode::AppendSibling( CDbCmdTreeNode *pSibling )
{
Win4Assert( 0 != pSibling );
if ( 0 == pctNextSibling )
{
pctNextSibling = pSibling;
}
else
{
DBCOMMANDTREE * pCurr = pctNextSibling;
while ( 0 != pCurr->pctNextSibling )
{
pCurr = pCurr->pctNextSibling;
}
pCurr->pctNextSibling = pSibling;
}
}
//+---------------------------------------------------------------------------
//
// Method: CDbCmdTreeNode::TransferNode, public
//
// Synopsis: Transfer pointers and data from one command tree node
// to another.
//
// Arguments: [pNode] - pointer to target node.
//
// Returns: nothing
//
// History: 27 Jun 1995 AlanW Created
//
// Notes: Specific to the needs of IQuery::AddPostProcessing;
// not available to client code.
//
//----------------------------------------------------------------------------
void CDbCmdTreeNode::TransferNode( CDbCmdTreeNode *pNode )
{
RtlCopyMemory( pNode, this, sizeof(CDbCmdTreeNode));
RtlZeroMemory( this, sizeof(CDbCmdTreeNode) );
op = DBOP_DEFAULT;
wKind = DBVALUEKIND_EMPTY;
}
//+---------------------------------------------------------------------------
//
// Method: CDbCmdTreeNode::Clone, public
//
// Synopsis: Create a copy of a command tree
//
// Arguments: [fCopyErrors] - optional, TRUE if error fields are to be copied
//
// Returns: CdbCmdTreeNode* - the copy of the tree
//
// History: 6-13-95 srikants Created
//
// Notes:
//
//----------------------------------------------------------------------------
CDbCmdTreeNode * CDbCmdTreeNode::Clone( BOOL fCopyErrors ) const
{
if ( IsNotImplemented(wKind) )
{
Win4Assert( !"Type Not Implemented" );
return 0;
}
CDbCmdTreeNode * pCopy = new CDbCmdTreeNode( op );
if ( 0 == pCopy )
return 0;
if (fCopyErrors)
pCopy->hrError = hrError;
else
pCopy->hrError = S_OK;
BOOL fSuccess = TRUE;
pCopy->wKind = wKind;
switch ( wKind )
{
case DBVALUEKIND_EMPTY:
break;
case DBVALUEKIND_BOOL:
case DBVALUEKIND_UI1:
case DBVALUEKIND_I1:
case DBVALUEKIND_UI2:
case DBVALUEKIND_I2:
case DBVALUEKIND_I4:
case DBVALUEKIND_UI4:
case DBVALUEKIND_R4:
case DBVALUEKIND_R8:
case DBVALUEKIND_CY:
case DBVALUEKIND_DATE:
case DBVALUEKIND_ERROR:
case DBVALUEKIND_I8:
case DBVALUEKIND_UI8:
//
// Just copy the eight bytes.
//
pCopy->value.llValue = value.llValue;
break;
case DBVALUEKIND_WSTR:
if ( 0 != value.pwszValue )
{
pCopy->value.pwszValue = AllocAndCopyWString( value.pwszValue );
fSuccess = 0 != pCopy->value.pwszValue;
}
break;
case DBVALUEKIND_BSTR:
if ( 0 != value.pbstrValue )
{
*((BSTR*)&(pCopy->value.pbstrValue)) = SysAllocStringLen( (BSTR)value.pbstrValue,
SysStringLen( (BSTR)value.pbstrValue ) );
fSuccess = ( 0 != pCopy->value.pbstrValue );
}
break;
case DBVALUEKIND_COMMAND:
if ( 0 != value.pCommand )
{
value.pCommand->AddRef();
pCopy->value.pCommand = value.pCommand;
}
break;
case DBVALUEKIND_IDISPATCH:
if ( 0 != value.pDispatch )
{
value.pDispatch->AddRef();
pCopy->value.pDispatch = value.pDispatch;
}
break;
case DBVALUEKIND_MONIKER:
if ( 0 != value.pMoniker )
{
value.pMoniker->AddRef();
pCopy->value.pMoniker = value.pMoniker;
}
break;
case DBVALUEKIND_ROWSET:
if ( 0 != value.pRowset )
{
value.pRowset->AddRef();
pCopy->value.pRowset = value.pRowset;
}
break;
case DBVALUEKIND_IUNKNOWN:
if ( 0 != value.pUnknown )
{
value.pUnknown->AddRef();
pCopy->value.pUnknown = value.pUnknown;
}
break;
case DBVALUEKIND_BYGUID:
if ( 0 != value.pdbbygdValue )
{
CDbByGuid * pTemp = new CDbByGuid( *value.pdbbygdValue );
if ( 0 != pTemp )
{
pCopy->value.pdbbygdValue = pTemp->CastToStruct();
}
else
{
fSuccess = FALSE;
}
}
break;
case DBVALUEKIND_COLDESC:
Win4Assert(! "DBVALUEKIND_COLDESC unsupported !");
break;
case DBVALUEKIND_ID:
if ( 0 != value.pdbidValue )
{
CDbColId * pId = new CDbColId( *value.pdbidValue );
if ( 0 != pId )
{
if ( !pId->IsValid() )
{
delete pId;
fSuccess = FALSE;
}
else
pCopy->value.pdbidValue = pId->CastToStruct();
}
else
{
fSuccess = FALSE;
}
}
break;
case DBVALUEKIND_CONTENT:
if ( 0 != value.pdbcntntValue )
{
CDbContent * pContent = new CDbContent( *value.pdbcntntValue );
if ( 0 != pContent )
{
if ( !pContent->IsValid() )
{
delete pContent;
fSuccess = FALSE;
}
else
pCopy->value.pdbcntntValue = (DBCONTENT *) pContent;
}
else
{
fSuccess = FALSE;
}
}
break;
case DBVALUEKIND_CONTENTSCOPE:
if ( 0 != value.pdbcntntscpValue )
{
CDbContentScope * pContentScp = new CDbContentScope( *value.pdbcntntscpValue );
if ( 0 != pContentScp )
{
if ( !pContentScp->IsValid() )
{
delete pContentScp;
fSuccess = FALSE;
}
else
pCopy->value.pdbcntntscpValue = (DBCONTENTSCOPE *) pContentScp;
}
else
{
fSuccess = FALSE;
}
}
break;
case DBVALUEKIND_CONTENTTABLE:
if ( 0 != value.pdbcntnttblValue )
{
CDbContentTable * pContentTbl = new CDbContentTable( *value.pdbcntnttblValue );
if ( 0 != pContentTbl )
{
if ( !pContentTbl->IsValid() )
{
delete pContentTbl;
fSuccess = FALSE;
}
else
pCopy->value.pdbcntnttblValue = (DBCONTENTTABLE *) pContentTbl;
}
else
{
fSuccess = FALSE;
}
}
break;
case DBVALUEKIND_CONTENTVECTOR:
if ( 0 != value.pdbcntntvcValue )
{
CDbContentVector * pTemp = new CDbContentVector( *value.pdbcntntvcValue );
if ( pTemp )
{
if ( !pTemp->IsValid() )
{
delete pTemp;
fSuccess = FALSE;
}
else
pCopy->value.pdbcntntvcValue = pTemp->CastToStruct();
}
else
{
fSuccess = FALSE;
}
}
break;
case DBVALUEKIND_CONTENTPROXIMITY:
if ( 0 != value.pdbcntntproxValue )
{
CDbContentProximity * pTemp = new CDbContentProximity( *value.pdbcntntproxValue );
if (pTemp)
{
if ( !pTemp->IsValid() )
{
delete pTemp;
fSuccess = FALSE;
}
else
pCopy->value.pdbcntntproxValue = pTemp->CastToStruct();
}
else
{
fSuccess = FALSE;
}
}
break;
case DBVALUEKIND_LIKE:
if ( 0 != value.pdblikeValue )
{
CDbLike * pTemp = new CDbLike( *value.pdblikeValue );
if (pTemp)
{
if ( !pTemp->IsValid() )
{
delete pTemp;
fSuccess = FALSE;
}
else
pCopy->value.pdblikeValue = pTemp->CastToStruct();
}
else
{
fSuccess = FALSE;
}
}
break;
case DBVALUEKIND_GROUPINFO:
if ( 0 != value.pdbgrpinfValue )
{
CDbGroupInfo * pTemp = new CDbGroupInfo( *value.pdbgrpinfValue );
if ( pTemp )
{
if ( !pTemp->IsValid() )
{
delete pTemp;
fSuccess = FALSE;
}
else
pCopy->value.pdbgrpinfValue = (CDbGroupInfo *) pTemp;
}
else
{
fSuccess = FALSE;
}
}
break;
case DBVALUEKIND_PARAMETER:
if ( 0 != value.pdbparamValue )
{
CDbParameter * pTemp = new CDbParameter( *value.pdbparamValue );
if ( pTemp )
{
if ( !pTemp->IsValid() )
{
delete pTemp;
fSuccess = FALSE;
}
else
pCopy->value.pdbparamValue = pTemp->CastToStruct();
}
else
{
fSuccess = FALSE;
}
}
break;
case DBVALUEKIND_PROPERTY:
if ( 0 != value.pdbpropValue )
{
CDbPropSet * pTemp = new CDbPropSet( *value.pdbpropValue );
if ( 0 != pTemp )
{
if ( !pTemp->IsValid() )
{
delete pTemp;
fSuccess = FALSE;
}
else
pCopy->value.pdbpropValue = pTemp->CastToStruct();
}
else
{
fSuccess = FALSE;
}
}
break;
case DBVALUEKIND_SETFUNC:
Win4Assert( !"NYI - DBVALUEKIND_SETFUNC");
break;
case DBVALUEKIND_SORTINFO:
if ( 0 != value.pdbsrtinfValue )
{
CDbSortInfo * pTemp = new CDbSortInfo( *value.pdbsrtinfValue );
if ( 0 != pTemp )
{
if ( !pTemp->IsValid() )
{
delete pTemp;
fSuccess = FALSE;
}
else
pCopy->value.pdbsrtinfValue = (DBSORTINFO *) pTemp;
}
else
{
fSuccess = FALSE;
}
}
break;
case DBVALUEKIND_TEXT:
if ( 0 != value.pdbtxtValue )
{
CDbText * pTemp = new CDbText( *value.pdbtxtValue );
if ( pTemp )
{
if ( !pTemp->IsValid() )
{
delete pTemp;
fSuccess = FALSE;
}
else
pCopy->value.pdbtxtValue = (DBTEXT *) pTemp;
}
else
{
fSuccess = FALSE;
}
}
break;
case DBVALUEKIND_VARIANT:
if ( 0 != value.pvarValue )
{
CStorageVariant const * pSrcVarnt = CastToStorageVariant( *value.pvarValue );
CStorageVariant * pDstVarnt = new CStorageVariant( *pSrcVarnt );
fSuccess = ( 0 != pDstVarnt ) && pDstVarnt->IsValid();
if ( fSuccess )
pCopy->value.pvarValue = (VARIANT *) (void *) pDstVarnt;
else
delete pDstVarnt;
}
break;
case DBVALUEKIND_GUID:
if ( 0 != value.pGuid )
{
GUID * pTemp = (GUID *) CoTaskMemAlloc( sizeof(GUID) );
if ( 0 != pTemp )
{
*pTemp = *value.pGuid;
pCopy->value.pGuid = pTemp;
}
else
{
fSuccess = FALSE;
}
}
break;
case DBVALUEKIND_BYTES:
// how do we know the length of this ??
Win4Assert( !"NYI - DBVALUEKIND_BYTES" );
break;
case DBVALUEKIND_STR:
if ( 0 != value.pzValue )
{
unsigned cb = strlen( value.pzValue ) + 1;
char * pTemp = (char *) CoTaskMemAlloc( cb );
if ( pTemp )
{
strcpy( pTemp, value.pzValue );
pCopy->value.pzValue = pTemp;
}
else
{
fSuccess = FALSE;
}
}
break;
case DBVALUEKIND_NUMERIC:
Win4Assert( !"NYI - DBVALUEKIND_NUMERIC" );
break;
case DBVALUEKIND_BYREF:
Win4Assert( !"NYI - DBVALUEKIND_BYREF" );
break;
default:
Win4Assert( !"Invalid Case Statement" );
pCopy->wKind = DBVALUEKIND_EMPTY;
}
if ( !fSuccess )
{
delete pCopy;
return 0;
}
//
// Next allocate the children nodes
//
if ( 0 != pctFirstChild )
{
CDbCmdTreeNode * pFirstChild = GetFirstChild();
pCopy->pctFirstChild = pFirstChild->Clone( fCopyErrors );
if ( 0 == pCopy->pctFirstChild )
{
delete pCopy;
return 0;
}
}
//
// Next allocate all the siblings.
// If stack space on the client becomes an issue we could iterate to
// reduce stack depth.
//
if ( 0 != pctNextSibling )
{
CDbCmdTreeNode * pSibling = GetNextSibling();
pCopy->pctNextSibling = pSibling->Clone( fCopyErrors );
if ( 0 == pCopy->pctNextSibling )
{
delete pCopy;
return 0;
}
}
return pCopy;
}
//+---------------------------------------------------------------------------
//
// Method: CDbCmdTreeNode::Marshall
//
// Synopsis:
//
// Arguments: [stm] -
//
// Returns:
//
// History: 6-20-95 srikants Created
//
// Notes:
//
//----------------------------------------------------------------------------
void CDbCmdTreeNode::Marshall( PSerStream & stm ) const
{
if ( IsNotImplemented( wKind ) )
{
Win4Assert( !"Type Not Implemented" );
return;
}
//
// Serialize the operator
//
stm.PutULong( (ULONG) op );
//
// Indicate the kind of the value.
//
Win4Assert( sizeof(wKind) == sizeof(USHORT) );
stm.PutUShort( wKind );
//
// Serialize the hrError
//
Win4Assert( sizeof(hrError) == sizeof(hrError) );
stm.PutULong( hrError );
//
//
// Indicate if the child is null or not
//
if ( 0 != pctFirstChild )
{
stm.PutByte(1);
}
else
{
stm.PutByte(0);
}
//
// Indicate if the sibling is null or not
//
if ( 0 != pctNextSibling )
{
stm.PutByte(1);
}
else
{
stm.PutByte(0);
}
//
// Next serialize the value.
//
switch ( wKind )
{
case DBVALUEKIND_EMPTY:
break; // nothing to marshall
case DBVALUEKIND_BOOL:
Win4Assert( sizeof(DBTYPE_BOOL) == sizeof(BYTE) );
case DBVALUEKIND_UI1:
case DBVALUEKIND_I1:
stm.PutByte( (BYTE) value.schValue );
break;
case DBVALUEKIND_UI2:
case DBVALUEKIND_I2:
stm.PutUShort( (USHORT) value.sValue );
break;
case DBVALUEKIND_I4:
case DBVALUEKIND_UI4:
stm.PutULong( (ULONG) value.ulValue );
break;
case DBVALUEKIND_R4:
stm.PutFloat( value.flValue );
break;
case DBVALUEKIND_R8:
stm.PutDouble( value.dblValue );
break;
case DBVALUEKIND_CY:
case DBVALUEKIND_DATE:
case DBVALUEKIND_ERROR:
case DBVALUEKIND_I8:
case DBVALUEKIND_UI8:
stm.PutBlob( (BYTE *) &value, sizeof(value) );
break;
case DBVALUEKIND_WSTR:
stm.PutWString( value.pwszValue );
break;
case DBVALUEKIND_BSTR:
{
ULONG cwc = (0 != value.pbstrValue) ? SysStringLen( (BSTR)value.pbstrValue ) : 0;
stm.PutULong( cwc );
if (cwc)
stm.PutWChar( (BSTR)value.pbstrValue, cwc );
}
break;
case DBVALUEKIND_COMMAND:
case DBVALUEKIND_IDISPATCH:
case DBVALUEKIND_MONIKER:
case DBVALUEKIND_ROWSET:
case DBVALUEKIND_IUNKNOWN:
// How do you marshall an open interface?
stm.PutByte(0);
break;
case DBVALUEKIND_BYGUID:
if ( value.pdbbygdValue )
{
stm.PutByte(1);
CDbByGuid * pTemp = (CDbByGuid *) value.pdbbygdValue;
pTemp->Marshall( stm );
}
else
{
stm.PutByte(0);
}
break;
case DBVALUEKIND_COLDESC:
Win4Assert(! "DBVALUEKIND_COLDESC unsupported !");
break;
case DBVALUEKIND_ID:
if ( value.pdbidValue )
{
stm.PutByte(1);
CDbColId * pTemp = (CDbColId *) value.pdbidValue;
pTemp->Marshall( stm );
}
else
{
stm.PutByte(0);
}
break;
case DBVALUEKIND_CONTENT:
if ( value.pdbcntntValue )
{
stm.PutByte(1);
CDbContent * pTemp = (CDbContent *) value.pdbcntntValue;
pTemp->Marshall( stm );
}
else
{
stm.PutByte(0);
}
break;
case DBVALUEKIND_CONTENTVECTOR:
if ( value.pdbcntntvcValue )
{
stm.PutByte(1);
CDbContentVector * pTemp =
(CDbContentVector *)value.pdbcntntvcValue;
pTemp->Marshall( stm );
}
else
{
stm.PutByte(0);
}
break;
case DBVALUEKIND_LIKE:
if (value.pdblikeValue )
{
stm.PutByte(1);
CDbLike * pTemp = (CDbLike *)value.pdblikeValue;
pTemp->Marshall( stm );
}
else
{
stm.PutByte( 0 );
}
break;
case DBVALUEKIND_CONTENTPROXIMITY:
if (value.pdbcntntproxValue )
{
stm.PutByte(1);
CDbContentProximity * pTemp = (CDbContentProximity *)value.pdbcntntproxValue;
pTemp->Marshall( stm );
}
else
{
stm.PutByte( 0 );
}
break;
case DBVALUEKIND_GROUPINFO:
if ( value.pdbgrpinfValue )
{
stm.PutByte(1);
CDbGroupInfo * pTemp =
(CDbGroupInfo *)value.pdbgrpinfValue;
pTemp->Marshall( stm );
}
else
{
stm.PutByte(0);
}
break;
case DBVALUEKIND_PARAMETER:
if ( value.pdbparamValue )
{
stm.PutByte(1);
CDbParameter * pTemp = (CDbParameter *)value.pdbparamValue;
pTemp->Marshall( stm );
}
else
{
stm.PutByte(0);
}
break;
case DBVALUEKIND_PROPERTY:
if ( value.pdbpropValue )
{
stm.PutByte(1);
CDbPropSet * pTemp = (CDbPropSet *)value.pdbpropValue;
pTemp->Marshall( stm );
}
else
{
stm.PutByte(0);
}
break;
case DBVALUEKIND_SETFUNC:
stm.PutByte(0);
Win4Assert( !"NYI - DBVALUEKIND_SETFUNC" );
break;
case DBVALUEKIND_SORTINFO:
if ( value.pdbsrtinfValue )
{
stm.PutByte(1);
CDbSortInfo const * pSortInfo = (CDbSortInfo const *)
value.pdbsrtinfValue;
pSortInfo->Marshall( stm );
}
else
{
stm.PutByte(0);
}
break;
case DBVALUEKIND_TEXT:
if ( value.pdbtxtValue )
{
stm.PutByte(1);
CDbText * pTemp = (CDbText *) value.pdbtxtValue;
pTemp->Marshall(stm);
}
else
{
stm.PutByte(0);
}
break;
case DBVALUEKIND_VARIANT:
if ( value.pvarValue )
{
stm.PutByte(1);
CStorageVariant * pVarnt = CastToStorageVariant( *value.pvarValue );
pVarnt->Marshall(stm);
}
else
{
stm.PutByte(0);
}
break;
case DBVALUEKIND_GUID:
if ( value.pGuid )
{
stm.PutByte(1);
stm.PutBlob( (BYTE *) value.pGuid, sizeof(GUID) );
}
else
{
stm.PutByte(0);
}
break;
case DBVALUEKIND_BYTES:
stm.PutByte(0);
Win4Assert( !"NYI - DBVALUEKIND_BYTES" );
break;
case DBVALUEKIND_STR:
stm.PutByte(0);
Win4Assert( !"NYI - DBVALUEKIND_STR" );
// if ( value.pzValue )
// {
// stm.PutByte(1);
// stm.PutString( value.pzValue );
// }
// else
// {
// stm.PutByte(0);
// }
break;
case DBVALUEKIND_NUMERIC:
if ( value.pdbnValue )
{
stm.PutByte(1);
CDbNumeric * pTemp = (CDbNumeric *) value.pdbnValue;
pTemp->Marshall( stm );
}
else
{
stm.PutByte(0);
}
break;
case DBVALUEKIND_BYREF:
stm.PutByte(0);
Win4Assert( !"NYI - DBVALUEKIND_BYREF" );
break;
default:
Win4Assert( !"CDbCmdNode::Marshall - Invalid wKind" );
}
//
// If the child is non-null, serialize the child
//
if ( 0 != pctFirstChild )
{
GetFirstChild()->Marshall(stm);
}
//
// If the sibling is non-null, serialize the sibling
// If stack space on the client becomes an issue we could iterate to
// reduce stack depth.
//
if ( 0 != pctNextSibling )
{
GetNextSibling()->Marshall(stm);
}
}
//+---------------------------------------------------------------------------
//
// Method: CDbCmdTreeNode::UnMarshall, public
//
// Synopsis:
//
// Arguments: [stm] -
//
// Returns:
//
// History: 6-20-95 srikants Created
//
// Notes:
//
//----------------------------------------------------------------------------
BOOL CDbCmdTreeNode::UnMarshall( PDeSerStream & stm )
{
CleanupValue();
//
// De-Serialize the operator
//
op = (DBCOMMANDOP)stm.GetULong();
//
// Indicate the kind of the value.
//
Win4Assert( sizeof(wKind) == sizeof(USHORT) );
wKind = stm.GetUShort();
Win4Assert( !IsNotImplemented(wKind) );
hrError = stm.GetULong();
//
// Indicate if the child is null or not
//
BOOL fChildPresent = 0 != stm.GetByte();
BOOL fSiblingPresent = 0 != stm.GetByte();
//
// Next serialize the value.
//
WCHAR * pwszStr;
BOOL fSuccess = TRUE;
switch ( wKind )
{
case DBVALUEKIND_EMPTY:
break; // nothing to marshall
case DBVALUEKIND_BOOL:
Win4Assert( sizeof(DBTYPE_BOOL) == sizeof(BYTE) );
case DBVALUEKIND_UI1:
case DBVALUEKIND_I1:
value.schValue = (BYTE) stm.GetByte();
break;
case DBVALUEKIND_UI2:
case DBVALUEKIND_I2:
value.usValue = stm.GetUShort();
break;
case DBVALUEKIND_I4:
case DBVALUEKIND_UI4:
value.ulValue = stm.GetULong();
break;
case DBVALUEKIND_R4:
value.flValue = stm.GetFloat();
break;
case DBVALUEKIND_R8:
value.dblValue = stm.GetDouble();
break;
case DBVALUEKIND_CY:
case DBVALUEKIND_DATE:
case DBVALUEKIND_ERROR:
case DBVALUEKIND_I8:
case DBVALUEKIND_UI8:
stm.GetBlob( (BYTE *) &value, sizeof(value) );
break;
case DBVALUEKIND_WSTR:
pwszStr = GetWString( stm, fSuccess);
if ( fSuccess )
{
value.pwszValue = pwszStr;
}
break;
case DBVALUEKIND_BSTR:
pwszStr = GetWString( stm, fSuccess, TRUE );
if ( fSuccess )
{
value.pwszValue = pwszStr;
}
break;
case DBVALUEKIND_COMMAND:
case DBVALUEKIND_IDISPATCH:
case DBVALUEKIND_MONIKER:
case DBVALUEKIND_ROWSET:
case DBVALUEKIND_IUNKNOWN:
vqDebugOut(( DEB_WARN, "CDbCmdNode::UnMarshall -- Unmarshalling "
"interface pointer failed\n" ));
stm.GetByte();
wKind = DBVALUEKIND_EMPTY;
break;
case DBVALUEKIND_BYGUID:
if ( 0 != stm.GetByte() )
{
CDbByGuid * pTemp = new CDbByGuid();
if ( pTemp )
{
value.pdbbygdValue = pTemp->CastToStruct();
fSuccess = pTemp->UnMarshall( stm );
}
else
{
fSuccess = FALSE;
}
}
break;
case DBVALUEKIND_COLDESC:
Win4Assert(! "DBVALUEKIND_COLDESC unsupported !");
break;
case DBVALUEKIND_ID:
if ( 0 != stm.GetByte() )
{
CDbColId * pTemp = new CDbColId();
if ( pTemp )
{
value.pdbidValue = pTemp->CastToStruct();
fSuccess = pTemp->UnMarshall( stm );
}
else
{
fSuccess = FALSE;
}
}
break;
case DBVALUEKIND_CONTENT:
if ( 0 != stm.GetByte() )
{
CDbContent * pTemp = new CDbContent();
if ( pTemp )
{
value.pdbcntntValue = pTemp->CastToStruct();
fSuccess = pTemp->UnMarshall( stm );
}
else
{
fSuccess = FALSE;
}
}
break;
case DBVALUEKIND_CONTENTPROXIMITY:
if ( 0 != stm.GetByte() )
{
CDbContentProximity * pTemp = new CDbContentProximity();
if ( pTemp )
{
value.pdbcntntproxValue = pTemp->CastToStruct();
fSuccess = pTemp->UnMarshall( stm );
}
else
{
fSuccess = FALSE;
}
}
break;
case DBVALUEKIND_CONTENTVECTOR:
if ( 0 != stm.GetByte() )
{
CDbContentVector * pTemp = new CDbContentVector();
if ( pTemp )
{
value.pdbcntntvcValue = pTemp->CastToStruct();
fSuccess = pTemp->UnMarshall( stm );
}
else
{
fSuccess = FALSE;
}
}
break;
case DBVALUEKIND_LIKE:
if ( 0 != stm.GetByte() )
{
CDbLike * pTemp = new CDbLike();
if ( pTemp )
{
value.pdblikeValue = pTemp->CastToStruct();
fSuccess = pTemp->UnMarshall( stm );
}
else
{
fSuccess = FALSE;
}
}
break;
case DBVALUEKIND_GROUPINFO:
if ( 0 != stm.GetByte() )
{
CDbGroupInfo * pTemp = new CDbGroupInfo;
if ( pTemp )
{
value.pdbgrpinfValue = pTemp->CastToStruct();
fSuccess = pTemp->UnMarshall( stm );
}
else
{
fSuccess = FALSE;
}
}
break;
case DBVALUEKIND_PARAMETER:
if ( 0 != stm.GetByte() )
{
CDbParameter * pTemp = new CDbParameter();
if ( pTemp )
{
value.pdbparamValue = pTemp->CastToStruct();
fSuccess = pTemp->UnMarshall(stm);
}
else
{
fSuccess = FALSE;
}
}
break;
case DBVALUEKIND_PROPERTY:
if ( 0 != stm.GetByte() )
{
CDbPropSet * pTemp = new CDbPropSet();
if ( pTemp )
{
value.pdbpropValue = pTemp->CastToStruct();
fSuccess = pTemp->UnMarshall( stm );
}
else
{
fSuccess = FALSE;
}
}
break;
case DBVALUEKIND_SETFUNC:
stm.GetByte();
Win4Assert( !"NYI - DBVALUEKIND_SETFUNC" );
break;
case DBVALUEKIND_SORTINFO:
if ( 0 != stm.GetByte() )
{
CDbSortInfo * pTemp = new CDbSortInfo();
if ( pTemp )
{
value.pdbsrtinfValue = pTemp->CastToStruct();
fSuccess = pTemp->UnMarshall( stm );
}
else
{
fSuccess = FALSE;
}
}
break;
case DBVALUEKIND_TEXT:
if ( stm.GetByte() )
{
CDbText * pTemp = new CDbText();
if ( pTemp )
{
value.pdbtxtValue = pTemp->CastToStruct();
fSuccess = pTemp->UnMarshall( stm );
}
else
{
fSuccess = FALSE;
}
}
break;
case DBVALUEKIND_VARIANT:
if ( stm.GetByte() )
{
CStorageVariant * pTemp = new CStorageVariant(stm);
if ( pTemp )
{
value.pvarValue = (VARIANT *) (void *) pTemp;
}
else
{
fSuccess = FALSE;
}
}
break;
case DBVALUEKIND_GUID:
if ( stm.GetByte() )
{
value.pGuid = new GUID;
if ( value.pGuid )
{
stm.GetBlob( (BYTE *) value.pGuid, sizeof(GUID) );
}
else
{
fSuccess = FALSE;
}
}
break;
case DBVALUEKIND_BYTES:
stm.GetByte();
Win4Assert( !"NYI - DBVALUEKIND_BYTES" );
break;
case DBVALUEKIND_STR:
stm.GetByte();
Win4Assert( !"NYI - DBVALUEKIND_STR" );
break;
case DBVALUEKIND_NUMERIC:
if ( stm.GetByte() )
{
CDbNumeric * pTemp = new CDbNumeric();
if ( pTemp )
{
value.pdbnValue = pTemp->CastToStruct();
fSuccess = pTemp->UnMarshall(stm);
}
else
{
fSuccess = FALSE;
}
}
break;
case DBVALUEKIND_BYREF:
stm.GetByte();
Win4Assert( !"NYI - DBVALUEKIND_BYREF" );
break;
default:
Win4Assert( !"CDbCmdNode::UnMarshall - Invalid wKind" );
}
if ( !fSuccess )
{
vqDebugOut(( DEB_WARN, "UnMarshalling 0x%X Failed for out of memory\n",
this ));
return FALSE;
}
//
// If the child is non-null, serialize the child
//
if ( fChildPresent )
{
pctFirstChild = new CDbCmdTreeNode();
if ( 0 != pctFirstChild )
fSuccess = GetFirstChild()->UnMarshall(stm);
else
fSuccess = FALSE;
}
if ( !fSuccess )
{
return FALSE;
}
//
// If the sibling is non-null, serialize the sibling
//
if ( fSiblingPresent )
{
pctNextSibling = new CDbCmdTreeNode();
if ( 0 != pctNextSibling )
{
fSuccess = GetNextSibling()->UnMarshall(stm);
}
else
{
fSuccess = FALSE;
}
}
return fSuccess;
}
//+---------------------------------------------------------------------------
//
// Method: CDbCmdTreeNode::GetWeight, protected
//
// Synopsis:
//
// Arguments: [lWeight] - The weight to be set.
//
// Returns: The weight.
//
// History: 13-Aug-97 KrishnaN Created
//
// Notes:
//
//----------------------------------------------------------------------------
void CDbCmdTreeNode::SetWeight( LONG lWeight )
{
switch (GetValueType())
{
// Takes care of DBOP_content and DBOP_content_freetext
case DBVALUEKIND_CONTENT:
{
CDbContentRestriction *pCont = (CDbContentRestriction *)this;
pCont->SetWeight( lWeight );
break;
}
// Takes care of DBOP_vector_or
case DBVALUEKIND_CONTENTVECTOR:
{
CDbVectorRestriction *pVector = (CDbVectorRestriction *)this;
pVector->SetWeight(lWeight);
break;
}
case DBVALUEKIND_LIKE:
{
Win4Assert(DBOP_like == GetCommandType());
CDbPropertyRestriction *pProp = (CDbPropertyRestriction *)this;
pProp->SetWeight(lWeight);
break;
}
case DBVALUEKIND_CONTENTPROXIMITY:
{
Win4Assert(DBOP_content_proximity == GetCommandType());
CDbProximityNodeRestriction *pProx = (CDbProximityNodeRestriction *)this;
pProx->SetWeight(lWeight);
break;
}
case DBVALUEKIND_I4:
{
switch (GetCommandType())
{
case DBOP_equal:
case DBOP_not_equal:
case DBOP_less:
case DBOP_less_equal:
case DBOP_greater:
case DBOP_greater_equal:
case DBOP_equal_any:
case DBOP_not_equal_any:
case DBOP_less_any:
case DBOP_less_equal_any:
case DBOP_greater_any:
case DBOP_greater_equal_any:
case DBOP_equal_all:
case DBOP_not_equal_all:
case DBOP_less_all:
case DBOP_less_equal_all:
case DBOP_greater_all:
case DBOP_greater_equal_all:
case DBOP_anybits:
case DBOP_allbits:
case DBOP_anybits_any:
case DBOP_allbits_any:
case DBOP_anybits_all:
case DBOP_allbits_all:
{
CDbPropertyRestriction *pProp = (CDbPropertyRestriction *)this;
pProp->SetWeight(lWeight);
break;
}
case DBOP_not:
{
CDbNotRestriction *pNot = (CDbNotRestriction *)this;
pNot->SetWeight(lWeight);
break;
}
case DBOP_or:
case DBOP_and:
{
CDbBooleanNodeRestriction *pBoolean = (CDbBooleanNodeRestriction *)this;
pBoolean->SetWeight(lWeight);
break;
}
default:
Win4Assert(!"How did we get here?");
break;
}
break;
}
default:
Win4Assert(!"How did we get here?");
break;
}
}
//+---------------------------------------------------------------------------
//
// Method: CDbCmdTreeNode::GetWeight, protected
//
// Synopsis:
//
// Returns: The weight.
//
// History: 13-Aug-97 KrishnaN Created
//
// Notes:
//
//----------------------------------------------------------------------------
LONG CDbCmdTreeNode::GetWeight() const
{
switch (GetValueType())
{
case DBVALUEKIND_CONTENT:
{
CDbContentRestriction *pCont = (CDbContentRestriction *)this;
return pCont->GetWeight();
}
case DBVALUEKIND_CONTENTVECTOR:
{
CDbVectorRestriction *pVector = (CDbVectorRestriction *)this;
return pVector->GetWeight();
}
case DBVALUEKIND_CONTENTPROXIMITY:
{
CDbProximityNodeRestriction *pProx = (CDbProximityNodeRestriction *)this;
return pProx->GetWeight();
}
case DBVALUEKIND_LIKE:
{
CDbPropertyRestriction *pProp = (CDbPropertyRestriction *)this;
return pProp->GetWeight();
}
case DBVALUEKIND_I4:
{
switch (GetCommandType())
{
case DBOP_equal:
case DBOP_not_equal:
case DBOP_less:
case DBOP_less_equal:
case DBOP_greater:
case DBOP_greater_equal:
case DBOP_equal_any:
case DBOP_not_equal_any:
case DBOP_less_any:
case DBOP_less_equal_any:
case DBOP_greater_any:
case DBOP_greater_equal_any:
case DBOP_equal_all:
case DBOP_not_equal_all:
case DBOP_less_all:
case DBOP_less_equal_all:
case DBOP_greater_all:
case DBOP_greater_equal_all:
case DBOP_anybits:
case DBOP_allbits:
case DBOP_anybits_any:
case DBOP_allbits_any:
case DBOP_anybits_all:
case DBOP_allbits_all:
{
CDbPropertyRestriction *pProp = (CDbPropertyRestriction *)this;
return pProp->GetWeight();
}
case DBOP_not:
{
CDbNotRestriction *pNot = (CDbNotRestriction *)this;
return pNot->GetWeight();
}
case DBOP_or:
case DBOP_and:
{
CDbBooleanNodeRestriction *pVector = (CDbBooleanNodeRestriction *)this;
return pVector->GetWeight();
}
default:
Win4Assert(!"How did we get here?");
break;
}
break;
}
default:
Win4Assert(!"Need to call the GetWeight for the appropriate class.");
break;
}
return MAX_QUERY_RANK;
}
//+---------------------------------------------------------------------------
//
// Method: CDbColumnNode::CDbColumnNode, public
//
// Synopsis: Construct a CDbColumnNode
//
// Arguments: [guidPropSet] -
// [wcsProperty] -
//
// History: 6-06-95 srikants Created
//
// Notes: The assert here validates an assumption in the inline
// SetPropSet and GetPropSet methods.
//
//----------------------------------------------------------------------------
CDbColumnNode::CDbColumnNode( GUID const & guidPropSet,
WCHAR const * wcsProperty )
: CDbCmdTreeNode(DBOP_column_name)
{
wKind = DBVALUEKIND_ID;
CDbColId * pTemp = new CDbColId( guidPropSet, wcsProperty );
if ( 0 != pTemp && !pTemp->IsValid() )
{
delete pTemp;
pTemp = 0;
}
value.pdbidValue = (DBID *) pTemp;
}
//+---------------------------------------------------------------------------
//
// Method: CDbColumnNode::CDbColumnNode, public
//
// Synopsis: Construct a CDbColumnNode from a DBID
//
// Arguments: [rColSpec] - DBID from which to initialize the node
//
// History: 6-20-95 srikants Created
//
// Notes: The column must be named by guid & number, or guid & name.
//
//----------------------------------------------------------------------------
CDbColumnNode::CDbColumnNode( DBID const & propSpec, BOOL fIMeanIt )
: CDbCmdTreeNode(DBOP_column_name)
{
wKind = DBVALUEKIND_ID;
CDbColId * pTemp = new CDbColId( propSpec );
if ( 0 != pTemp && !pTemp->IsValid() )
{
delete pTemp;
pTemp = 0;
}
value.pdbidValue = (DBID *) pTemp;
}
//+---------------------------------------------------------------------------
//
// Member: CDbScalarValue::Value
//
// Synopsis: Gets the value in the scalar into a variant.
//
// Arguments: [valOut] - Output value.
//
// Returns: TRUE if successful. FALSE o/w
//
// History: 11-16-95 srikants Created
//
//----------------------------------------------------------------------------
void CDbScalarValue::Value( CStorageVariant & valOut )
{
//
// Deallocate any memory allocated for this node.
//
switch ( wKind )
{
case DBVALUEKIND_EMPTY:
valOut.SetEMPTY();
break;
case DBVALUEKIND_BOOL:
valOut.SetBOOL((SHORT)value.fValue);
break;
case DBVALUEKIND_UI1:
valOut.SetUI1( value.uchValue );
break;
case DBVALUEKIND_I1:
valOut.SetI1( value.schValue );
break;
case DBVALUEKIND_UI2:
valOut = value.usValue;
break;
case DBVALUEKIND_I2:
valOut = value.sValue;
break;
case DBVALUEKIND_I4:
valOut = value.lValue;
break;
case DBVALUEKIND_UI4:
valOut = value.ulValue;
break;
case DBVALUEKIND_R4:
valOut = value.flValue;
break;
case DBVALUEKIND_R8:
valOut = value.dblValue;
break;
case DBVALUEKIND_CY:
valOut = value.cyValue;
break;
case DBVALUEKIND_DATE:
valOut = value.dateValue;
break;
case DBVALUEKIND_ERROR:
valOut = value.scodeValue;
break;
case DBVALUEKIND_I8:
valOut.SetI8( *((LARGE_INTEGER *)(&value.llValue)) );
break;
case DBVALUEKIND_UI8:
valOut.SetUI8( *((ULARGE_INTEGER *)(&value.ullValue)) );
break;
case DBVALUEKIND_WSTR:
valOut = value.pwszValue;
break;
case DBVALUEKIND_BSTR:
valOut.SetBSTR( (BSTR)value.pbstrValue );
break;
case DBVALUEKIND_VARIANT:
{
CStorageVariant * pVarnt = _GetStorageVariant();
if ( 0 != pVarnt )
{
valOut = *pVarnt;
}
else
{
valOut.SetEMPTY();
}
}
break;
case DBVALUEKIND_STR:
if ( value.pzValue )
{
valOut = value.pzValue;
}
else
{
valOut.SetEMPTY();
}
break;
case DBVALUEKIND_BYTES:
case DBVALUEKIND_NUMERIC:
case DBVALUEKIND_BYREF:
valOut.SetEMPTY();
Win4Assert( !"CDbScalarValue::Value - Not Implemented" );
break;
default:
valOut.SetEMPTY();
Win4Assert( !"Illegal Case Statement" );
}
}