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secondo/Algebras/Distributed2/frel.h

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2026-01-23 17:03:45 +08:00
/*
----
This file is part of SECONDO.
Copyright (C) 2015,
Faculty of Mathematics and Computer Science,
Database Systems for New Applications.
SECONDO is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
SECONDO is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with SECONDO; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
----
//[$][\$]
*/
#ifndef FREL_H
#define FREL_H
#include <string>
#include "NestedList.h"
#include "SecondoSMI.h"
union Word;
namespace distributed2{
class frel{
public:
frel();
frel(const frel& src);
explicit frel(const std::string& name);
void set(const std::string& value);
// secondo support
static inline std::string BasicType(){return "frel";}
static bool checkType(const ListExpr list);
static ListExpr Property();
static Word In(const ListExpr typeInfo, const ListExpr instance,
const int errorPos, ListExpr& errorInfo, bool& correct);
static ListExpr Out(ListExpr typeInfo, Word value);
static Word Create(const ListExpr typeInfo);
static void Delete(const ListExpr typeInfo, Word& w);
static bool Open(SmiRecord& valueRecord,
size_t& offset, const ListExpr typeInfo,
Word& value);
static bool Save(SmiRecord& valueRecord, size_t& offset,
const ListExpr typeInfo, Word& value);
static void Close(const ListExpr typeInfo, Word& w);
static Word Clone(const ListExpr typeInfo, const Word& v);
static void* Cast(void* addr);
static bool TypeCheck(ListExpr type, ListExpr& errorInfo);
static int SizeOf();
inline bool IsDefined()const{ return defined;}
inline std::string GetValue()const{ return value;}
inline void SetDefined(const bool _def){ defined = _def;}
private:
explicit frel(const int dummy);
std::string value;
bool defined;
};
} // end of namespace distributed2
#endif