office-gobmx/sc/inc/dpcache.hxx
Kohei Yoshida 696644dbfb fdo#35943: Better performance with pivot table refresh.
When the source data range contains trailing rows, simply skip them, and
don't even bother iterating them.  Apparently sometimes users specify a
data range with a huge amount of trailing empty rows, which would slow
down the pivot table refresh for no good reason.

But we do still need to keep the original end row position, in case the
pivot table needs to include empty cells in the output.

Change-Id: I2c73c368837b8e322e12b25ddf31429488961f06
2012-12-15 00:51:54 -05:00

182 lines
5.5 KiB
C++

/* -*- 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 SC_DPTABLECACHE_HXX
#define SC_DPTABLECACHE_HXX
#include "global.hxx"
#include "dpnumgroupinfo.hxx"
#include "dpmacros.hxx"
#include "tools/date.hxx"
#include <boost/noncopyable.hpp>
#include <boost/scoped_ptr.hpp>
#include <boost/ptr_container/ptr_vector.hpp>
#include <boost/unordered_set.hpp>
#include <mdds/flat_segment_tree.hpp>
#include <vector>
#include <set>
struct ScQueryParam;
class ScDPObject;
class ScDPItemData;
struct ScDPNumGroupInfo;
/**
* This class represents the cached data part of the datapilot cache table
* implementation.
*/
class SC_DLLPUBLIC ScDPCache : boost::noncopyable
{
typedef boost::unordered_set<rtl::OUString, rtl::OUStringHash> StringSetType;
public:
typedef std::vector<ScDPItemData> ItemsType;
typedef std::set<ScDPObject*> ObjectSetType;
typedef std::vector<rtl::OUString> LabelsType;
typedef std::vector<SCROW> IndexArrayType;
struct GroupItems : boost::noncopyable
{
ItemsType maItems;
ScDPNumGroupInfo maInfo;
sal_Int32 mnGroupType;
GroupItems();
GroupItems(const ScDPNumGroupInfo& rInfo, sal_Int32 nGroupType);
};
struct Field : boost::noncopyable
{
/**
* Optional items for grouped field.
*/
boost::scoped_ptr<GroupItems> mpGroup;
/**
* Unique values in the field, stored in ascending order.
*/
ItemsType maItems;
/**
* Original source data represented as indices to the unique value
* list. The order of the data is as they appear in the original
* data source.
*/
IndexArrayType maData;
sal_uLong mnNumFormat;
Field();
};
/**
* Interface for connecting to database source. Column index is 0-based.
*/
class DBConnector
{
public:
virtual long getColumnCount() const = 0;
virtual rtl::OUString getColumnLabel(long nCol) const = 0;
virtual bool first() = 0;
virtual bool next() = 0;
virtual void finish() = 0;
virtual void getValue(long nCol, ScDPItemData& rData, short& rNumType) const = 0;
virtual ~DBConnector() {}
};
private:
ScDocument* mpDoc;
long mnColumnCount;
/**
* All pivot table objects that references this cache.
*/
mutable ObjectSetType maRefObjects;
typedef boost::ptr_vector<Field> FieldsType;
typedef boost::ptr_vector<GroupItems> GroupFieldsType;
FieldsType maFields;
GroupFieldsType maGroupFields;
mutable StringSetType maStringPool;
LabelsType maLabelNames; // Stores dimension names.
mdds::flat_segment_tree<SCROW, bool> maEmptyRows;
SCROW mnDataSize;
SCROW mnRowCount;
bool mbDisposing;
public:
const rtl::OUString* InternString(const rtl::OUString& rStr) const;
void AddReference(ScDPObject* pObj) const;
void RemoveReference(ScDPObject* pObj) const;
const ObjectSetType& GetAllReferences() const;
SCROW GetIdByItemData(long nDim, const ScDPItemData& rItem) const;
rtl::OUString GetFormattedString(long nDim, const ScDPItemData& rItem) const;
long AppendGroupField();
void ResetGroupItems(long nDim, const ScDPNumGroupInfo& rNumInfo, sal_Int32 nGroupType);
SCROW SetGroupItem(long nDim, const ScDPItemData& rData);
void GetGroupDimMemberIds(long nDim, std::vector<SCROW>& rIds) const;
void ClearGroupFields();
const ScDPNumGroupInfo* GetNumGroupInfo(long nDim) const;
sal_Int32 GetGroupType(long nDim) const;
SCCOL GetDimensionIndex(const rtl::OUString& sName) const;
sal_uLong GetNumberFormat( long nDim ) const;
bool IsDateDimension( long nDim ) const ;
long GetDimMemberCount(long nDim) const;
SCROW GetOrder( long nDim, SCROW nIndex ) const;
const ItemsType& GetDimMemberValues( SCCOL nDim ) const;
bool InitFromDoc(ScDocument* pDoc, const ScRange& rRange);
bool InitFromDataBase(DBConnector& rDB);
SCROW GetRowCount() const;
SCROW GetDataSize() const;
SCROW GetItemDataId( sal_uInt16 nDim, SCROW nRow, bool bRepeatIfEmpty ) const;
rtl::OUString GetDimensionName(LabelsType::size_type nDim) const;
bool IsRowEmpty(SCROW nRow) const;
bool ValidQuery(SCROW nRow, const ScQueryParam& rQueryParam) const;
ScDocument* GetDoc() const;
long GetColumnCount() const;
const ScDPItemData* GetItemDataById( long nDim, SCROW nId ) const;
ScDPCache(ScDocument* pDoc);
~ScDPCache();
#if DEBUG_PIVOT_TABLE
void Dump() const;
#endif
private:
void PostInit();
void Clear();
void AddLabel(const rtl::OUString& rLabel);
const GroupItems* GetGroupItems(long nDim) const;
};
#endif
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */