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Diffstat (limited to 'connectivity/source/inc/dbase/DIndex.hxx')
| -rw-r--r-- | connectivity/source/inc/dbase/DIndex.hxx | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/connectivity/source/inc/dbase/DIndex.hxx b/connectivity/source/inc/dbase/DIndex.hxx new file mode 100644 index 000000000000..2637a7a2a5b1 --- /dev/null +++ b/connectivity/source/inc/dbase/DIndex.hxx @@ -0,0 +1,160 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +#ifndef _CONNECTIVITY_DBASE_INDEX_HXX_ +#define _CONNECTIVITY_DBASE_INDEX_HXX_ + +#include "connectivity/sdbcx/VIndex.hxx" +#include <com/sun/star/lang/XUnoTunnel.hpp> +#include "dbase/DTable.hxx" +#include "dbase/dindexnode.hxx" + +#define dBASE_III_GROUP "dBase III" + +namespace connectivity +{ + namespace dbase + { + class OIndexIterator; + class ONDXKey; + + typedef sdbcx::OIndex ODbaseIndex_BASE; + typedef file::OBoolOperator OBoolOperator_BASE; + typedef file::OOperand OOperand_BASE; + + class ODbaseIndex : public ODbaseIndex_BASE + { + friend SvStream& operator << (SvStream &rStream, ODbaseIndex&); + friend SvStream& operator >> (SvStream &rStream, ODbaseIndex&); + + friend class ONDXNode; + friend class ONDXPage; + friend class ONDXPagePtr; + friend class OIndexIterator; + + public: + //================================================================== + // Kopfsatz-Struktur, verbleibt im Speicher + //================================================================== + struct NDXHeader + { + sal_uInt32 db_rootpage; /* Position der Rootpage */ + sal_uInt32 db_pagecount; /* Anzahl Pages */ + sal_uInt8 db_frei[4]; /* reserviert */ + sal_uInt16 db_keylen; /* Laenge des Schluessels */ + sal_uInt16 db_maxkeys; /* Max. # keys pro Seite */ + sal_uInt16 db_keytype; /* Art des Schluessels + (0-Text) + (1-Numerisch) */ + sal_uInt16 db_keyrec; /* Laenge eines IndexSatzes + SatzNr + keylen */ + sal_uInt8 db_frei1[3]; /* reserviert */ + sal_uInt8 db_unique; /* eindeutig */ + char db_name[488]; /* index_name (Feldname) */ + }; + + private: + SvStream* m_pFileStream; // Stream zum Lesen/Schreiben des Index + NDXHeader m_aHeader; + ONDXPageList m_aCollector; // Pool von nicht mehr benoetigten Seiten + ONDXPagePtr m_aRoot, // Wurzel des b+ Baums + m_aCurLeaf; // aktuelles Blatt + sal_uInt16 m_nCurNode; // Position des aktuellen Knoten + + sal_uInt32 m_nPageCount, + m_nRootPage; + + ODbaseTable* m_pTable; + sal_Bool m_bUseCollector : 1; // Verwenden des GarbageCollectors + + ::rtl::OUString getCompletePath(); + void closeImpl(); + /* closes and kill the index file and throws an error. + */ + void impl_killFileAndthrowError_throw(sal_uInt16 _nErrorId,const ::rtl::OUString& _sFile); + protected: + virtual ~ODbaseIndex(); + public: + ODbaseIndex(ODbaseTable* _pTable); + ODbaseIndex(ODbaseTable* _pTable,const NDXHeader& _aHeader,const ::rtl::OUString& _Name); + + sal_Bool openIndexFile(); + virtual void refreshColumns(); + + // com::sun::star::lang::XUnoTunnel + virtual sal_Int64 SAL_CALL getSomething( const com::sun::star::uno::Sequence< sal_Int8 >& aIdentifier ) throw(com::sun::star::uno::RuntimeException); + static com::sun::star::uno::Sequence< sal_Int8 > getUnoTunnelImplementationId(); + + virtual void SAL_CALL acquire() throw(); + virtual void SAL_CALL release() throw(); + + const ODbaseTable* getTable() const { return m_pTable; } + const NDXHeader& getHeader() const { return m_aHeader; } + virtual OIndexIterator* createIterator(OBoolOperator_BASE* pOp, + const OOperand_BASE* pOperand = NULL); + + void SetRootPos(sal_uInt32 nPos) {m_nRootPage = nPos;} + void SetPageCount(sal_uInt32 nCount) {m_nPageCount = nCount;} + + sal_uInt32 GetRootPos() {return m_nRootPage;} + sal_uInt32 GetPageCount() {return m_nPageCount;} + + sal_Bool IsText() const {return m_aHeader.db_keytype == 0;} + sal_uInt16 GetMaxNodes() const {return m_aHeader.db_maxkeys;} + + virtual sal_Bool Insert(sal_uInt32 nRec, const ORowSetValue& rValue); + virtual sal_Bool Update(sal_uInt32 nRec, const ORowSetValue&, const ORowSetValue&); + virtual sal_Bool Delete(sal_uInt32 nRec, const ORowSetValue& rValue); + virtual sal_Bool Find(sal_uInt32 nRec, const ORowSetValue& rValue); + + void createINFEntry(); + sal_Bool CreateImpl(); + sal_Bool DropImpl(); + + DECLARE_SERVICE_INFO(); + protected: + + ONDXPage* CreatePage(sal_uInt32 nPagePos, ONDXPage* pParent = NULL, sal_Bool bLoad = sal_False); + void Collect(ONDXPage*); + ONDXPagePtr getRoot(); + + sal_Bool isUnique() const { return m_IsUnique; } + sal_Bool UseCollector() const {return m_bUseCollector;} + // Tree operationen + void Insert(ONDXPagePtr aCurPage, ONDXNode& rNode); + void Release(sal_Bool bSave = sal_True); + sal_Bool ConvertToKey(ONDXKey* rKey, sal_uInt32 nRec, const ORowSetValue& rValue); + }; + + SvStream& operator << (SvStream &rStream, ODbaseIndex&); + SvStream& operator >> (SvStream &rStream, ODbaseIndex&); + } +} + +#endif // _CONNECTIVITY_DBASE_INDEX_HXX_ + + |