245 lines
8.6 KiB
C++
245 lines
8.6 KiB
C++
//+---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1996 - 2000.
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//
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// File: wqitem.hxx
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//
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// Contents: WEB Query cache class
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//
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// History: 96/Jan/3 DwightKr Created
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//
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//----------------------------------------------------------------------------
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#pragma once
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const unsigned _int64 CWQueryItemSignature = 0x6c61726269476943; // CiGibral
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const unsigned MAX_QUERY_COLUMNS = 50;
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extern DBBINDING g_aDbBinding[ MAX_QUERY_COLUMNS ];
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class CHTXFile;
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class CWebCanonicalResultsOut;
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//+---------------------------------------------------------------------------
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//
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// Class: CWQueryItem
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//
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// Purpose: A single query item, including its associated IDQ & HTX files,
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// as well as the query results.
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//
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// History: 96/Jan/23 DwightKr Created
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//
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//----------------------------------------------------------------------------
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class CWQueryItem : public CDoubleLink
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{
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public:
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CWQueryItem(CIDQFile & idqFile,
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CHTXFile & htxFile,
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XPtrST<WCHAR> & wcsColumns,
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XPtr<CDbColumns> & dbColumns,
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CDynArray<WCHAR> & awcsColumns,
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ULONG ulSequenceNumber,
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LONG lNextRecordNumber,
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CSecurityIdentity securityIdentity );
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~CWQueryItem();
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void AddRef()
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{
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long x = InterlockedIncrement( (LONG *) &_refCount );
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// underflow check
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Win4Assert( 0 != x );
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}
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void Release()
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{
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long x = InterlockedDecrement( (LONG *) &_refCount );
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// underflow check
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Win4Assert( 0xffffffff != x );
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}
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ULONG LokGetRefCount() const { return _refCount; }
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time_t LokGetLastAccessTime() const { return _lastAccessTime; }
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ULONG GetSequenceNumber() const { return _ulSequenceNumber; }
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LONG GetNextRecordNumber() const { return _lNextRecordNumber; }
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void SetNextRecordNumber(LONG lNextRecordNumber)
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{
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Win4Assert( IsSequential() );
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_lNextRecordNumber = lNextRecordNumber;
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}
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void ExecuteQuery( CVariableSet & variableSet,
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COutputFormat & outputFormat );
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BOOL LokIsCachedDataValid()
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{
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return _idqFile.IsCachedDataValid() &&
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_htxFile.IsCachedDataValid();
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}
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void OutputQueryResults( CVariableSet & variableSet,
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COutputFormat & outputFormat,
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CVirtualString & vString );
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void OutputQueryResults( CVariableSet & variableSet,
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COutputFormat & outputFormat,
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CWebCanonicalResultsOut & output );
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WCHAR const * GetRestriction() const { return _wcsRestriction; }
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WCHAR const * GetScope() const { return _wcsScope; }
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WCHAR const * GetSort() const { return _wcsSort; }
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WCHAR const * GetIDQFileName() const { return _idqFile.GetIDQFileName(); }
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WCHAR const * GetTemplate() const { return _htxFile.GetVirtualName(); }
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WCHAR const * GetCatalog() const { return _wcsCatalog; }
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WCHAR const * GetColumns() const { return _wcsColumns; }
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SYSTEMTIME & GetQueryTime() { return _queryTime; }
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WCHAR const * GetQueryTimeZone() const { return _wcsQueryTimeZone; }
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WCHAR const * GetCiFlags() const { return _wcsCiFlags; }
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WCHAR const * GetForceUseCI() const { return _wcsForceUseCI; }
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WCHAR const * GetDeferTrimming() const { return _wcsDeferTrimming; }
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BOOL IsSequential() const { return _htxFile.IsSequential(); }
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unsigned _int64 GetSignature() const { return _signature; }
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CSecurityIdentity & GetSecurityIdentity() { return _securityIdentity; }
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//BOOL IsQueryUpToDate();
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void UpdateQueryStatus( CVariableSet & variableSet );
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BOOL IsZombie() const { return _fIsZombie; }
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void Zombify() { _fIsZombie = TRUE; }
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BOOL IsInCache() const { return _fInCache; }
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void InCache() { _fInCache = TRUE; }
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BOOL CanCache() const { return _fCanCache; }
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BOOL IsQueryDone();
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ULONG GetReplaceableParameterCount() const
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{
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return _idqFile.GetReplaceableParameterCount();
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}
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BOOL IsCanonicalOutput() const
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{
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return _idqFile.IsCanonicalOutput();
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}
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CIDQFile & GetIDQFile() const { return _idqFile; }
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CHTXFile & GetHTXFile() const { return _htxFile; }
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LCID GetLocale() const { return _locale; }
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LONG GetMaxRecordsInResultSet() const { return _lMaxRecordsInResultSet; }
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LONG GetFirstRowsInResultSet() const { return _lFirstRowsInResultSet; }
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#if (DBG == 1)
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void LokDump( CVirtualString & string,
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CVariableSet * pVariableSet = 0,
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COutputFormat * pOutputFormat = 0 );
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#endif
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private:
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CBaseQueryResultsIter * GetQueryResultsIterator( COutputFormat & outputFormat );
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void ConvertValueToString( COutputColumn & column,
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DBTYPE dbType,
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NUMBERFMT * pNumberFormat,
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CVirtualString & string );
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unsigned _int64 _signature; // Signature to ID this memory block
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ULONG _ulSequenceNumber; // Unique sequence number
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ULONG _refCount; // Ref count
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time_t _lastAccessTime; // Last time this query accessed
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BOOL _fIsZombie; // Is this a zombie query
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BOOL _fInCache; // Is this item in the cache
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BOOL _fCanCache; // TRUE for non-admin queries
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LCID _locale; // Locale used for this query
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WCHAR * _wcsRestriction; // Restriction string
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WCHAR * _wcsDialect; // Restriction version
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WCHAR * _wcsSort; // Sort string
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WCHAR * _wcsScope; // Query scope
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WCHAR * _wcsCatalog; // Catalog as in CiCatalog
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WCHAR * _wcsColumns; // Output columns
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WCHAR * _wcsCiFlags; // CI Flags
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WCHAR * _wcsForceUseCI; // ForceUseCI flag
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WCHAR * _wcsDeferTrimming; // DeferTrimming flag
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WCHAR * _wcsQueryTimeZone; // Timezone of the query
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SYSTEMTIME _queryTime; // Time query executed
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CDbColumns * _pDbColumns; // Output column specification
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CDynArray<WCHAR> _awcsColumns; // Parsed column names
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IRowset * _pIRowset; // Cached query results
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IAccessor * _pIAccessor; // Accessor to query results
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IRowsetQueryStatus *_pIRowsetStatus; // Interface to determine if done
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ICommand * _pICommand; // Main query ICommand
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HACCESSOR _hAccessor; // Handle to accessor
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LONG _lMaxRecordsInResultSet; // # items to examine
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LONG _lFirstRowsInResultSet;
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LONG _lNextRecordNumber; // Next available rec # in query
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ULONG _cFilteredDocuments; // # documents filtered in the catalog
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ULONG _ulDialect; // wtoi(_wcsDialect)
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CIDQFile & _idqFile; // A parsed IDQ file
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CHTXFile & _htxFile; // A parsed HTX file
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CSecurityIdentity _securityIdentity; // Security ID of this query
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};
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//+---------------------------------------------------------------------------
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//
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// Class: CWPendingQueryItem
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//
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// Purpose: A single pending query item.
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//
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// History: 96/Mar/01 DwightKr Created
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//
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//----------------------------------------------------------------------------
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class CWPendingQueryItem
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{
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public:
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CWPendingQueryItem( XPtr<CWQueryItem> & queryItem,
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XPtr<COutputFormat> & outputFormat,
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XPtr<CVariableSet> & variableSet );
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~CWPendingQueryItem();
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BOOL IsQueryDone()
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{
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Win4Assert( 0 != _pQueryItem );
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return _pQueryItem->IsQueryDone();
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}
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CWQueryItem * AcquirePendingQueryItem()
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{
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Win4Assert( 0 != _pQueryItem );
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CWQueryItem *pItem = _pQueryItem;
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_pQueryItem = 0;
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return pItem;
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}
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CWQueryItem * GetPendingQueryItem() const { return _pQueryItem; }
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COutputFormat & GetOutputFormat() { return *_pOutputFormat; }
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CVariableSet & GetVariableSet() { return *_pVariableSet; }
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#if (DBG == 1)
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void LokDump( CVirtualString & string );
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#endif
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private:
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CWQueryItem * _pQueryItem; // The corresponding query
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COutputFormat * _pOutputFormat; // String format of #'s & dates
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CVariableSet * _pVariableSet; // List of browser variables
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};
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