7c3990c38d
Change-Id: Iaf3a64effb69fd82c6303d8fa75723ccc5ced543 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/123183 Tested-by: Jenkins Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
110 lines
3.7 KiB
C++
110 lines
3.7 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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#pragma once
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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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enum class OKeyType
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{
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NONE, // do not sort
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Double, // numeric key
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String // String Key
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};
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enum class TAscendingOrder
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{
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ASC = 1, // ascending
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DESC = -1 // otherwise
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};
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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, std::unique_ptr<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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bool m_bFrozen;
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public:
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OSortIndex( std::vector<OKeyType>&& _aKeyType,
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std::vector<TAscendingOrder>&& _aAscending);
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OSortIndex(OSortIndex const &) = delete; // MSVC2015 workaround
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OSortIndex& operator=(OSortIndex const &) = delete; // MSVC2015 workaround
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~OSortIndex();
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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(std::unique_ptr<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 values 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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const std::vector<OKeyType>& getKeyType() const { return m_aKeyType; }
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TAscendingOrder getAscending(std::vector<TAscendingOrder>::size_type _nPos) const { return m_aAscending[_nPos]; }
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};
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// MSVC hack to avoid multiply defined std::vector-related symbols:
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class OKeySet_Base: public ORefVector<sal_Int32> {};
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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 OKeySet_Base
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{
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bool m_bFrozen;
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public:
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OKeySet()
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: m_bFrozen(false){}
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bool isFrozen() const { return m_bFrozen; }
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void setFrozen() { m_bFrozen = true; }
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};
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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