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101 lines
2.7 KiB
C++
101 lines
2.7 KiB
C++
/* Copyright (C) 2014 InfiniDB, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; version 2 of
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the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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// $Id: windowframe.h 3932 2013-06-25 16:08:10Z xlou $
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#ifndef UTILS_WINDOWFRAME_H
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#define UTILS_WINDOWFRAME_H
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#include <utility> // std::pair, std::make_pair
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#include <boost/shared_ptr.hpp>
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#include "framebound.h"
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namespace windowfunction
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{
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const int64_t WF__FRAME_ROWS = 0;
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const int64_t WF__FRAME_RANGE = 1;
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/** @brief class WindowFrame
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*
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*/
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class WindowFrame
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{
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public:
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/** @brief WindowFrame constructor
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*/
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WindowFrame(int64_t t, boost::shared_ptr<FrameBound>& u, boost::shared_ptr<FrameBound>& l) :
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fUnit(t), fUpper(u), fLower(l)
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{}
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/** @brief WindowFrame copy constructor
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*/
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WindowFrame(const WindowFrame& rhs) :
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fUnit(rhs.fUnit),
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fUpper(rhs.fUpper->clone()),
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fLower(rhs.fLower->clone())
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{}
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/** @brief WindowFrame destructor
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*/
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virtual ~WindowFrame() {};
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/** @brief clone
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*/
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virtual WindowFrame* clone() { return new WindowFrame(*this); };
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/** @brief virtual void getWindow
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*/
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std::pair<uint64_t, uint64_t> getWindow(int64_t, int64_t, int64_t);
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const std::string toString() const;
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/** @brief set methods
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*/
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void setRowMetaData(const rowgroup::RowGroup& g, const rowgroup::Row& r)
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{ fUpper->setRowMetaData(g, r); fLower->setRowMetaData(g, r); }
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void setRowData(boost::shared_ptr<std::vector<joblist::RowPosition> >& d)
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{ fUpper->setRowData(d); fLower->setRowData(d); }
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void setCallback(joblist::WindowFunctionStep* s)
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{ fUpper->setCallback(s); fLower->setCallback(s); }
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int64_t unit() const { return fUnit; }
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void unit(int64_t t) { fUnit = t; }
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const boost::shared_ptr<FrameBound>& upper() const { return fUpper; }
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void upper(const boost::shared_ptr<FrameBound>& u) { fUpper = u; }
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const boost::shared_ptr<FrameBound>& lower() const { return fLower; }
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void lower(const boost::shared_ptr<FrameBound>& l) { fLower = l; }
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protected:
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// type
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int64_t fUnit;
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// data
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boost::shared_ptr<FrameBound> fUpper;
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boost::shared_ptr<FrameBound> fLower;
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};
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} // namespace
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#endif // UTILS_WINDOWFRAME_H
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// vim:ts=4 sw=4:
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