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Diffstat (limited to 'connectivity/source/inc/dbase/dindexnode.hxx')
| -rw-r--r-- | connectivity/source/inc/dbase/dindexnode.hxx | 410 |
1 files changed, 410 insertions, 0 deletions
diff --git a/connectivity/source/inc/dbase/dindexnode.hxx b/connectivity/source/inc/dbase/dindexnode.hxx new file mode 100644 index 000000000000..8f93ea1bce28 --- /dev/null +++ b/connectivity/source/inc/dbase/dindexnode.hxx @@ -0,0 +1,410 @@ +/************************************************************************* + * + * $RCSfile: dindexnode.hxx,v $ + * + * $Revision: 1.1.1.1 $ + * + * last change: $Author: hr $ $Date: 2000-09-18 16:14:26 $ + * + * The Contents of this file are made available subject to the terms of + * either of the following licenses + * + * - GNU Lesser General Public License Version 2.1 + * - Sun Industry Standards Source License Version 1.1 + * + * Sun Microsystems Inc., October, 2000 + * + * GNU Lesser General Public License Version 2.1 + * ============================================= + * Copyright 2000 by Sun Microsystems, Inc. + * 901 San Antonio Road, Palo Alto, CA 94303, USA + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License version 2.1, as published by the Free Software Foundation. + * + * This library 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 for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * + * Sun Industry Standards Source License Version 1.1 + * ================================================= + * The contents of this file are subject to the Sun Industry Standards + * Source License Version 1.1 (the "License"); You may not use this file + * except in compliance with the License. You may obtain a copy of the + * License at http://www.openoffice.org/license.html. + * + * Software provided under this License is provided on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, + * WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS, + * MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING. + * See the License for the specific provisions governing your rights and + * obligations concerning the Software. + * + * The Initial Developer of the Original Code is: Sun Microsystems, Inc. + * + * Copyright: 2000 by Sun Microsystems, Inc. + * + * All Rights Reserved. + * + * Contributor(s): _______________________________________ + * + * + ************************************************************************/ +#ifndef _CONNECTIVITY_DBASE_INDEXNODE_HXX_ +#define _CONNECTIVITY_DBASE_INDEXNODE_HXX_ + +#ifndef _CONNECTIVITY_FILE_FCODE_HXX_ +#include "file/fcode.hxx" +#endif +#ifndef _CONNECTIVITY_FILE_TABLE_HXX_ +#include "file/FTable.hxx" +#endif +#ifndef _CONNECTIVITY_DBASE_INDEXPAGE_HXX_ +#include "dbase/DIndexPage.hxx" +#endif +#ifndef _CONNECTIVITY_FILE_VALUE_HXX_ +#include "file/FValue.hxx" +#endif + +namespace connectivity +{ + namespace dbase + { + + class ONDXNode; + class ODbaseIndex; + typedef file::OFileValue OFileValue_BASE; + //================================================================== + // Index Key + //================================================================== + typedef file::OOperand ONDXKey_BASE; + class ONDXKey : public ONDXKey_BASE + { + friend class ONDXNode; + UINT32 nRecord; /* Satzzeiger */ + OFileValue_BASE xValue; /* Schluesselwert */ + + public: + ONDXKey():nRecord(0){} + inline ONDXKey(const OFileValue_BASE& rVal, sal_Int32 eType, UINT32 nRec) + : ONDXKey_BASE(eType) + , nRecord(nRec) + , xValue(rVal) + {} + ONDXKey(const rtl::OUString& aStr, UINT32 nRec = 0) + : ONDXKey_BASE(::com::sun::star::sdbc::DataType::VARCHAR) + ,nRecord(nRec) + { + if (aStr.len()) + xValue = aStr; + } + ONDXKey(double aVal, UINT32 nRec = 0) + : ONDXKey_BASE(::com::sun::star::sdbc::DataType::DOUBLE) + ,nRecord(nRec) + ,xValue(aVal) + { + } + ONDXKey(UINT32 nRec) + : nRecord(nRec){} + inline ONDXKey(const ONDXKey& rKey); + + inline ONDXKey& operator= (const ONDXKey& rKey); + virtual void setValue(const ::com::sun::star::uno::Any& _rVal) + { + xValue = _rVal; + } + + virtual ::com::sun::star::uno::Any getValue() const + { + return xValue; + } + + UINT32 GetRecord() const {return nRecord;} + void ResetRecord() {nRecord = 0;} + + BOOL operator == (const ONDXKey& rKey) const; + BOOL operator != (const ONDXKey& rKey) const; + BOOL operator < (const ONDXKey& rKey) const; + BOOL operator <= (const ONDXKey& rKey) const; + BOOL operator > (const ONDXKey& rKey) const; + BOOL operator >= (const ONDXKey& rKey) const; + + BOOL Load (SvFileStream& rStream, BOOL bText); + BOOL Write(SvFileStream& rStream, BOOL bText); + + static BOOL IsText(sal_Int32 eType); + + private: + StringCompare Compare(const ONDXKey& rKey) const; + }; + + #define NODE_NOTFOUND 0xFFFF + + class ONDXPagePtr; + //================================================================== + // Index Seite + //================================================================== + class ONDXPage //: public SvRefBase + { + friend class ODbaseIndex; + + friend SvStream& operator << (SvStream &rStream, const ONDXPage&); + friend SvStream& operator >> (SvStream &rStream, ONDXPage&); + + UINT32 nPagePos; // Position in der Indexdatei + BOOL bModified : 1; + USHORT nCount; + + ONDXPagePtr *aParent, // VaterSeite + *aChild; // Zeiger auf rechte ChildPage + ODbaseIndex& rIndex; + ONDXNode* ppNodes; // array von Knoten + + oslInterlockedCount m_refCount; + + public: + void acquire() + { + osl_incrementInterlockedCount( &m_refCount ); + } + void release(); + + // Knoten Operationen + USHORT Count() const {return nCount;} + + BOOL Insert(ONDXNode& rNode, ULONG nRowsLeft = 0); + BOOL Insert(USHORT nIndex, ONDXNode& rNode); + BOOL Append(ONDXNode& rNode); + BOOL Delete(USHORT); + void Remove(USHORT); + void Release(BOOL bSave = TRUE); + void ReleaseFull(BOOL bSave = TRUE); + + // Aufteilen und Zerlegen + ONDXNode Split(ONDXPage& rPage); + void Merge(USHORT nParentNodePos, ONDXPagePtr xPage); + + // Zugriffsoperationen + ONDXNode& operator[] (USHORT nPos); + const ONDXNode& operator[] (USHORT nPos) const; + + BOOL IsRoot() const; + BOOL IsLeaf() const; + BOOL IsModified() const; + BOOL HasParent(); + BOOL HasChild() const; + + BOOL IsFull() const; + + UINT32 GetPagePos() const {return nPagePos;} + ONDXPagePtr& GetChild(ODbaseIndex* pIndex = 0); + + // Parent braucht nicht nachgeladen zu werden + ONDXPagePtr GetParent(); + ODbaseIndex& GetIndex() {return rIndex;} + const ODbaseIndex& GetIndex() const {return rIndex;} + + // Setzen des Childs, ueber Referenz, um die PagePos zu erhalten + void SetChild(ONDXPagePtr aCh); + void SetParent(ONDXPagePtr aPa); + + USHORT Search(const ONDXKey& rSearch); + USHORT Search(const ONDXPage* pPage); + void SearchAndReplace(const ONDXKey& rSearch, ONDXKey& rReplace); + + protected: + ONDXPage(ODbaseIndex& rIndex, ULONG nPos, ONDXPage* = NULL); + ~ONDXPage(); + + virtual void QueryDelete(); + + void SetModified(BOOL bMod) {bModified = bMod;} + void SetPagePos(UINT32 nPage) {nPagePos = nPage;} + + BOOL Find(const ONDXKey&); // rek. Abstieg + USHORT FindPos(const ONDXKey& rKey) const; + + #ifdef DEBUG + void PrintPage(); + #endif + }; + + //================================================================== + // Index Seitenverweis + //================================================================== + // SV_DECL_REF(ONDXPage); // Basisklasse da weitere Informationen gehalten werden muessen + typedef vos::ORef<ONDXPage> ONDXPagePtr_BASE; + + class ONDXPagePtr : public ONDXPagePtr_BASE //ONDXPageRef + { + friend SvStream& operator << (SvStream &rStream, const ONDXPagePtr&); + friend SvStream& operator >> (SvStream &rStream, ONDXPagePtr&); + + UINT32 nPagePos; // Position in der Indexdatei + + public: + ONDXPagePtr(UINT32 nPos = 0):nPagePos(nPos){} + ONDXPagePtr(const ONDXPagePtr& rRef); + ONDXPagePtr(ONDXPage* pRefPage); + + ONDXPagePtr& operator=(const ONDXPagePtr& rRef); + ONDXPagePtr& operator=(ONDXPage* pPageRef); + + UINT32 GetPagePos() const {return nPagePos;} + BOOL HasPage() const {return nPagePos != 0;} + sal_Bool Is() const { return isValid(); } + void Clear() + { + unbind(); + } + }; + + SvStream& operator << (SvStream &rStream, const ONDXPagePtr&); + SvStream& operator >> (SvStream &rStream, ONDXPagePtr&); + + inline BOOL ONDXPage::IsRoot() const {return !aParent->Is();} + inline BOOL ONDXPage::IsLeaf() const {return !aChild->HasPage();} + inline BOOL ONDXPage::IsModified() const {return bModified;} + inline BOOL ONDXPage::HasParent() {return aParent->Is();} + inline BOOL ONDXPage::HasChild() const {return aChild->HasPage();} + inline ONDXPagePtr ONDXPage::GetParent() {return *aParent;} + + inline void ONDXPage::SetParent(ONDXPagePtr aPa = ONDXPagePtr()) + { *aParent = aPa;} + + inline void ONDXPage::SetChild(ONDXPagePtr aCh = ONDXPagePtr()) + { + *aChild = aCh; + if (aChild->Is()) + (*aChild)->SetParent(this); + } + SvStream& operator >> (SvStream &rStream, ONDXPage& rPage); + SvStream& operator << (SvStream &rStream, const ONDXPage& rPage); + + + typedef ::std::vector<ONDXPage*> ONDXPageList; + + //================================================================== + // Index Knoten + //================================================================== + class ONDXNode + { + friend class ONDXPage; + ONDXPagePtr aChild; /* naechster Seitenverweis */ + ONDXKey aKey; + + public: + ONDXNode(){} + ONDXNode(const ONDXKey& rKey, + ONDXPagePtr aPagePtr = ONDXPagePtr()) + :aKey(rKey), aChild(aPagePtr) {} + + // verweist der Knoten auf eine Seite + BOOL HasChild() const {return aChild.HasPage();} + // Ist ein Index angegeben, kann gegebenfalls die Seite nachgeladen werden + ONDXPagePtr& GetChild(ODbaseIndex* pIndex = NULL, ONDXPage* = NULL); + + const ONDXKey& GetKey() const {return aKey;} + ONDXKey& GetKey() {return aKey;} + + // Setzen des Childs, ueber Referenz, um die PagePos zu erhalten + void SetChild(ONDXPagePtr aCh = ONDXPagePtr(), ONDXPage* = NULL); + void SetKey(ONDXKey& rKey) {aKey = rKey;} + + void Write(SvStream &rStream, const ONDXPage& rPage) const; + void Read(SvStream &rStream, ODbaseIndex&); + }; + //================================================================== + // inline implementation + //================================================================== +// inline ONDXKey::ONDXKey(const OFileValue_BASE& rVal, sal_Int32 eType, UINT32 nRec) +// : ONDXKey_BASE(eType) +// , nRecord(nRec),xValue(rVal) +// { +// } + + +// inline ONDXKey::ONDXKey(const rtl::OUString& aStr, UINT32 nRec) +// : ONDXKey_BASE(::com::sun::star::sdbc::DataType::VARCHAR) +// ,nRecord(nRec) +// { +// if (aStr.len()) +// xValue = aStr; +// } + +// inline ONDXKey::ONDXKey(double aVal, UINT32 nRec) +// : ONDXKey_BASE(::com::sun::star::sdbc::DataType::DOUBLE) +// ,nRecord(nRec) +// ,xValue(aVal) +// { +// } + +// inline ONDXKey::ONDXKey(UINT32 nRec) +// :nRecord(nRec) +// { +// } + + inline ONDXKey::ONDXKey(const ONDXKey& rKey) + : ONDXKey_BASE(rKey.getDBType()) + ,nRecord(rKey.nRecord),xValue(rKey.xValue) + { + } + + inline ONDXKey& ONDXKey::operator=(const ONDXKey& rKey) + { + xValue = rKey.xValue; + nRecord = rKey.nRecord; + m_eDBType = rKey.getDBType(); + return *this; + } + + inline BOOL ONDXKey::operator == (const ONDXKey& rKey) const + { + return Compare(rKey) == COMPARE_EQUAL; + } + inline BOOL ONDXKey::operator != (const ONDXKey& rKey) const + { + return !operator== (rKey); + } + inline BOOL ONDXKey::operator < (const ONDXKey& rKey) const + { + return Compare(rKey) == COMPARE_LESS; + } + inline BOOL ONDXKey::operator > (const ONDXKey& rKey) const + { + return Compare(rKey) == COMPARE_GREATER; + } + inline BOOL ONDXKey::operator <= (const ONDXKey& rKey) const + { + return !operator > (rKey); + } + inline BOOL ONDXKey::operator >= (const ONDXKey& rKey) const + { + return !operator< (rKey); + } + + inline void ONDXNode::SetChild(ONDXPagePtr aCh, ONDXPage* pParent) + { + aChild = aCh; + if (aChild.Is()) + aChild->SetParent(pParent); + } + + } + +} + + + + +#endif // _CONNECTIVITY_DBASE_INDEXNODE_HXX_ + + |