218 lines
4.1 KiB
C++
218 lines
4.1 KiB
C++
/*
|
|
----
|
|
This file is part of SECONDO.
|
|
|
|
Copyright (C) 2004, University in Hagen, Department of 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
|
|
----
|
|
|
|
//paragraph [1] Title: [{\Large \bf \begin{center}] [\end{center}}]
|
|
//[TOC] [\tableofcontents]
|
|
|
|
[1] StandardLengthUnit.h
|
|
|
|
April 2015 - Rene Steinbrueck
|
|
|
|
1 Overview
|
|
|
|
[TOC]
|
|
|
|
2 Defines, includes, and constants
|
|
|
|
*/
|
|
#ifndef STANDARD_LENGTH_UNIT_H
|
|
#define STANDARD_LENGTH_UNIT_H
|
|
|
|
#include "LengthUnit.h"
|
|
|
|
/*
|
|
3 C++ Classes (Defintion)
|
|
|
|
3.1 StandardLengthUnit
|
|
|
|
This class inherits from ~Attribute~ and allows length units
|
|
of standard types to be part of relations. One should note that it is
|
|
still an abstract class, because the functions ~CopyFrom~ and ~Clone~
|
|
are not implemented.
|
|
|
|
This class contains a defined flag.
|
|
|
|
*/
|
|
template<typename Alpha>
|
|
class StandardLengthUnit :
|
|
public Attribute,
|
|
public LengthUnit<Alpha>
|
|
{
|
|
public:
|
|
|
|
/*
|
|
3.1.1 Constructors and Destructor
|
|
|
|
3.1.1.1 Standard constructor
|
|
|
|
*/
|
|
|
|
StandardLengthUnit() {}
|
|
/*
|
|
The simple constructor. This constructor should not be used.
|
|
|
|
3.1.1.2 Default constructor
|
|
|
|
*/
|
|
|
|
StandardLengthUnit( bool is_defined):
|
|
Attribute(is_defined),
|
|
LengthUnit<Alpha>(is_defined)
|
|
{}
|
|
|
|
/*
|
|
This constructor initializes the LInterval with zero. If the passed
|
|
bool flag is true start and end are defined, otherwise not. The produced
|
|
linterval is left and right closed.
|
|
|
|
3.1.1.3 Setting constructor
|
|
|
|
*/
|
|
|
|
StandardLengthUnit( const LInterval& linterval ):
|
|
Attribute(true),
|
|
LengthUnit<Alpha>( linterval )
|
|
{
|
|
del.refs=1;
|
|
del.SetDelete();
|
|
del.isDefined=true;
|
|
}
|
|
/*
|
|
This constructor intializes the StandardLengthUnit with the passed LInterval.
|
|
|
|
3.1.1.4 Destructor
|
|
|
|
*/
|
|
|
|
virtual ~StandardLengthUnit() {}
|
|
|
|
/*
|
|
3.1.2 Functions to be part of relations
|
|
|
|
3.1.2.1 Compare
|
|
|
|
*/
|
|
|
|
virtual int Compare( const Attribute* arg ) const
|
|
{
|
|
return 0;
|
|
}
|
|
/*
|
|
3.1.2.2 Adjacent
|
|
|
|
*/
|
|
virtual bool Adjacent( const Attribute* arg ) const
|
|
{
|
|
return false;
|
|
}
|
|
|
|
/*
|
|
3.1.2.3 HashValue
|
|
|
|
*/
|
|
virtual size_t HashValue() const
|
|
{
|
|
if(!IsDefined())
|
|
{
|
|
return 0;
|
|
}
|
|
return static_cast<size_t>
|
|
(
|
|
this->lengthInterval.start.HashValue()^
|
|
this->lengthInterval.end.HashValue()
|
|
) ;
|
|
}
|
|
|
|
/*
|
|
3.1.2.4 CopyFrom
|
|
|
|
*/
|
|
|
|
virtual void CopyFrom( const Attribute* right ) = 0;
|
|
|
|
/*
|
|
3.1.2.5 Print
|
|
|
|
*/
|
|
|
|
virtual std::ostream& Print( std::ostream &os ) const
|
|
{
|
|
if( IsDefined() )
|
|
{
|
|
os << StandardLengthUnit<Alpha>::BasicType() << ": ( ";
|
|
LengthUnit<Alpha>::lengthInterval.Print(os);
|
|
os << ", NO SPECIFIC Print()-Method for this StandardTemporalUnit! )";
|
|
return os;
|
|
}
|
|
else
|
|
return os << StandardLengthUnit<Alpha>::BasicType() <<": (undef) ";
|
|
}
|
|
|
|
/*
|
|
3.1.2.6 Basic Type
|
|
|
|
*/
|
|
|
|
inline static const std::string BasicType()
|
|
{
|
|
return "lu"+Alpha::BasicType();
|
|
}
|
|
|
|
/*
|
|
3.1.2.7 Check Type
|
|
|
|
*/
|
|
|
|
static const bool checkType(const ListExpr type)
|
|
{
|
|
return listutils::isSymbol(type, BasicType());
|
|
}
|
|
|
|
/*
|
|
3.1.2.8 Clone Function
|
|
|
|
*/
|
|
|
|
virtual StandardLengthUnit<Alpha>* Clone() const = 0;
|
|
|
|
/*
|
|
3.1.2.9 SizeOf Function
|
|
|
|
*/
|
|
virtual size_t Sizeof() const = 0;
|
|
|
|
};
|
|
|
|
/*
|
|
3.1.4 Output operator
|
|
|
|
*/
|
|
|
|
template<class Alpha>
|
|
std::ostream& operator<<(std::ostream& o, const StandardLengthUnit<Alpha>& u)
|
|
{
|
|
return u.Print(o);
|
|
}
|
|
|
|
|
|
#endif //STANDARD_LENGTH_UNIT_H
|