128 lines
4.5 KiB
C++
128 lines
4.5 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#ifndef CONNECTIVITY_TSORTINDEX_HXX
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#define CONNECTIVITY_TSORTINDEX_HXX
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#include "connectivity/dbtoolsdllapi.hxx"
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#include "TKeyValue.hxx"
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namespace connectivity
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{
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typedef enum
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{
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SQL_ORDERBYKEY_NONE, // do not sort
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SQL_ORDERBYKEY_DOUBLE, // numeric key
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SQL_ORDERBYKEY_STRING // String Key
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} OKeyType;
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typedef enum
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{
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SQL_ASC = 1, // ascending
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SQL_DESC = -1 // otherwise
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} TAscendingOrder;
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class OKeySet;
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class OKeyValue; // simple class which holds a sal_Int32 and a ::std::vector<ORowSetValueDecoratorRef>
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/**
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The class OSortIndex can be used to implement a sorted index.
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This can depend on the fields which should be sorted.
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*/
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class OOO_DLLPUBLIC_DBTOOLS OSortIndex
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{
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public:
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typedef ::std::vector< ::std::pair<sal_Int32,OKeyValue*> > TIntValuePairVector;
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typedef ::std::vector<OKeyType> TKeyTypeVector;
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private:
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TIntValuePairVector m_aKeyValues;
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TKeyTypeVector m_aKeyType;
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::std::vector<TAscendingOrder> m_aAscending;
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sal_Bool m_bFrozen;
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public:
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OSortIndex( const ::std::vector<OKeyType>& _aKeyType,
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const ::std::vector<TAscendingOrder>& _aAscending);
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~OSortIndex();
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inline static void * SAL_CALL operator new( size_t nSize ) SAL_THROW(())
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{ return ::rtl_allocateMemory( nSize ); }
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inline static void * SAL_CALL operator new( size_t,void* _pHint ) SAL_THROW(())
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{ return _pHint; }
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inline static void SAL_CALL operator delete( void * pMem ) SAL_THROW(())
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{ ::rtl_freeMemory( pMem ); }
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inline static void SAL_CALL operator delete( void *,void* ) SAL_THROW(())
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{ }
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/**
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AddKeyValue appends a new value.
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@param
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pKeyValue the keyvalue to be appended
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ATTENTION: when the sortindex is already frozen the parameter will be deleted
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*/
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void AddKeyValue(OKeyValue * pKeyValue);
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/**
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Freeze freezes the sortindex so that new values could only be appended by their value
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*/
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void Freeze();
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/**
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CreateKeySet creates the keyset which vaalues could be used to travel in your table/result
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The returned keyset is frozen.
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*/
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::rtl::Reference<OKeySet> CreateKeySet();
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// look at the name
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sal_Bool IsFrozen() const { return m_bFrozen; }
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// returns the current size of the keyvalues
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size_t Count() const { return m_aKeyValues.size(); }
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inline const ::std::vector<OKeyType>& getKeyType() const { return m_aKeyType; }
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inline TAscendingOrder getAscending(::std::vector<TAscendingOrder>::size_type _nPos) const { return m_aAscending[_nPos]; }
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};
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/**
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The class OKeySet is a refcountable vector which also has a state.
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This state gives information about if the keyset is fixed.
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*/
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class OOO_DLLPUBLIC_DBTOOLS OKeySet : public ORefVector<sal_Int32>
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{
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sal_Bool m_bFrozen;
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public:
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OKeySet()
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: ORefVector<sal_Int32>()
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, m_bFrozen(sal_False){}
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OKeySet(Vector::size_type _nSize)
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: ORefVector<sal_Int32>(_nSize)
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, m_bFrozen(sal_False){}
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sal_Bool isFrozen() const { return m_bFrozen; }
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void setFrozen(sal_Bool _bFrozen=sal_True) { m_bFrozen = _bFrozen; }
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};
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}
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#endif // CONNECTIVITY_TSORTINDEX_HXX
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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