79 lines
2.4 KiB
C
79 lines
2.4 KiB
C
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/*
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This file is part of SECONDO.
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Copyright (C) 2011, University in Hagen, Department of Computer Science,
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Database Systems for New Applications.
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SECONDO is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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SECONDO 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 SECONDO; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef RASTER2_DEFTIME_H
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#define RASTER2_DEFTIME_H
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#include <NList.h>
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#include "../msbool.h"
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#include "../msreal.h"
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#include "../msint.h"
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#include "../msstring.h"
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#include "Algebras/Temporal/TemporalAlgebra.h"
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namespace raster2 {
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extern ValueMapping deftimeFuns[];
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ListExpr deftimeTypeMap(ListExpr args);
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int deftimeSelectFun(ListExpr args);
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template <typename MSType>
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int deftimeFun
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(Word* args, Word& result, int message, Word& local, Supplier s)
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{
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result = qp->ResultStorage(s);
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temporalalgebra::Periods* pResult =
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static_cast<temporalalgebra::Periods*>(result.addr);
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MSType* ms = static_cast<MSType*>(args[0].addr);
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if(ms->isDefined()){
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pResult->Clear();
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ms->getDefinedPeriods(*pResult);
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} else {
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pResult->SetDefined(false);
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}
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return 0;
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}
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struct deftimeInfo : OperatorInfo
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{
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deftimeInfo()
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{
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name = "deftime";
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signature = msbool::BasicType() + " deftime -> "
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+ temporalalgebra::Periods::BasicType();
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appendSignature(msreal::BasicType() + " deftime -> "
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+ temporalalgebra::Periods::BasicType());
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appendSignature(msint::BasicType() + " deftime -> "
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+ temporalalgebra::Periods::BasicType());
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appendSignature(msstring::BasicType() + " deftime -> "
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+ temporalalgebra::Periods::BasicType());
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syntax = "deftime(_)";
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meaning = "returns defined periods";
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}
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};
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}
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#endif /* #define RASTER2_DEFTIME_H */
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