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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 .
*/
#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
size_t Count() const { return m_aKeyValues.size(); }
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: */
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