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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* 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
USHORT m_nCurNode; // Position des aktuellen Knoten
sal_uInt32 m_nPageCount,
m_nRootPage;
ODbaseTable* m_pTable;
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;}
BOOL IsText() const {return m_aHeader.db_keytype == 0;}
USHORT GetMaxNodes() const {return m_aHeader.db_maxkeys;}
virtual BOOL Insert(sal_uInt32 nRec, const ORowSetValue& rValue);
virtual BOOL Update(sal_uInt32 nRec, const ORowSetValue&, const ORowSetValue&);
virtual BOOL Delete(sal_uInt32 nRec, const ORowSetValue& rValue);
virtual BOOL Find(sal_uInt32 nRec, const ORowSetValue& rValue);
void createINFEntry();
BOOL CreateImpl();
BOOL DropImpl();
DECLARE_SERVICE_INFO();
protected:
ONDXPage* CreatePage(sal_uInt32 nPagePos, ONDXPage* pParent = NULL, BOOL bLoad = FALSE);
void Collect(ONDXPage*);
ONDXPagePtr getRoot();
sal_Bool isUnique() const { return m_IsUnique; }
BOOL UseCollector() const {return m_bUseCollector;}
// Tree operationen
void Insert(ONDXPagePtr aCurPage, ONDXNode& rNode);
void Release(BOOL bSave = TRUE);
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_
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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