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Diffstat (limited to 'connectivity/source/inc/TSortIndex.hxx')
| -rw-r--r-- | connectivity/source/inc/TSortIndex.hxx | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/connectivity/source/inc/TSortIndex.hxx b/connectivity/source/inc/TSortIndex.hxx new file mode 100644 index 000000000000..21212bc90ce6 --- /dev/null +++ b/connectivity/source/inc/TSortIndex.hxx @@ -0,0 +1,142 @@ +/* -*- 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_TSORTINDEX_HXX +#define CONNECTIVITY_TSORTINDEX_HXX + +#include "connectivity/dbtoolsdllapi.hxx" +#include "TKeyValue.hxx" + +namespace connectivity +{ + typedef enum + { + SQL_ORDERBYKEY_NONE, // do not sort + SQL_ORDERBYKEY_DOUBLE, // numeric key + SQL_ORDERBYKEY_STRING // String Key + } OKeyType; + + typedef enum + { + SQL_ASC = 1, // ascending + SQL_DESC = -1 // otherwise + } TAscendingOrder; + + class OKeySet; + class OKeyValue; // simple class which holds a sal_Int32 and a ::std::vector<ORowSetValueDecoratorRef> + + /** + The class OSortIndex can be used to implement a sorted index. + This can depend on the fields which should be sorted. + */ + class OOO_DLLPUBLIC_DBTOOLS OSortIndex + { + public: + typedef ::std::vector< ::std::pair<sal_Int32,OKeyValue*> > TIntValuePairVector; + typedef ::std::vector<OKeyType> TKeyTypeVector; + + private: + TIntValuePairVector m_aKeyValues; + TKeyTypeVector m_aKeyType; + ::std::vector<TAscendingOrder> m_aAscending; + sal_Bool m_bFrozen; + + public: + + OSortIndex( const ::std::vector<OKeyType>& _aKeyType, + const ::std::vector<TAscendingOrder>& _aAscending); + + ~OSortIndex(); + + inline static void * SAL_CALL operator new( size_t nSize ) SAL_THROW( () ) + { return ::rtl_allocateMemory( nSize ); } + inline static void * SAL_CALL operator new( size_t,void* _pHint ) SAL_THROW( () ) + { return _pHint; } + inline static void SAL_CALL operator delete( void * pMem ) SAL_THROW( () ) + { ::rtl_freeMemory( pMem ); } + inline static void SAL_CALL operator delete( void *,void* ) SAL_THROW( () ) + { } + + + /** + AddKeyValue appends a new value. + @param + pKeyValue the keyvalue to be appended + ATTENTION: when the sortindex is already frozen the parameter will be deleted + */ + void AddKeyValue(OKeyValue * pKeyValue); + + /** + Freeze freezes the sortindex so that new values could only be appended by their value + */ + void Freeze(); + + /** + CreateKeySet creates the keyset which vaalues could be used to travel in your table/result + The returned keyset is frozen. + */ + ::rtl::Reference<OKeySet> CreateKeySet(); + + + + // look at the name + sal_Bool IsFrozen() const { return m_bFrozen; } + // returns the current size of the keyvalues + sal_Int32 Count() const { return m_aKeyValues.size(); } + /** GetValue returns the value at position nPos (1..n) [sorted access]. + It only allowed to call this method after the sortindex has been frozen. + */ + + sal_Int32 GetValue(sal_Int32 nPos) const; + + inline const ::std::vector<OKeyType>& getKeyType() const { return m_aKeyType; } + inline TAscendingOrder getAscending(::std::vector<TAscendingOrder>::size_type _nPos) const { return m_aAscending[_nPos]; } + + }; + + /** + The class OKeySet is a refcountable vector which also has a state. + This state gives information about if the keyset is fixed. + */ + class OOO_DLLPUBLIC_DBTOOLS OKeySet : public ORefVector<sal_Int32> + { + sal_Bool m_bFrozen; + public: + OKeySet() + : ORefVector<sal_Int32>() + , m_bFrozen(sal_False){} + OKeySet(Vector::size_type _nSize) + : ORefVector<sal_Int32>(_nSize) + , m_bFrozen(sal_False){} + + sal_Bool isFrozen() const { return m_bFrozen; } + void setFrozen(sal_Bool _bFrozen=sal_True) { m_bFrozen = _bFrozen; } + }; +} +#endif // CONNECTIVITY_TSORTINDEX_HXX + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |