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58 lines
1.4 KiB
C++
58 lines
1.4 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: wf_count.h 3868 2013-06-06 22:13:05Z xlou $
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#ifndef UTILS_WF_COUNT_H
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#define UTILS_WF_COUNT_H
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#include <set>
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#include "windowfunctiontype.h"
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namespace windowfunction
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{
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template<typename T>
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class WF_count : public WindowFunctionType
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{
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public:
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WF_count(int id, const std::string& name) : WindowFunctionType(id, name) {resetData();}
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// pure virtual in base
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void operator()(int64_t b, int64_t e, int64_t c);
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WindowFunctionType* clone() const;
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void resetData();
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static boost::shared_ptr<WindowFunctionType> makeFunction(int, const string&, int);
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protected:
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uint64_t fCount;
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std::set<T> fSet;
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};
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} // namespace
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#endif // UTILS_WF_COUNT_H
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// vim:ts=4 sw=4:
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