134 lines
4.2 KiB
C++
134 lines
4.2 KiB
C++
/******************************************************************************
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----
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This file is part of SECONDO.
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Copyright (C) 2004-2008, University in Hagen, Faculty of Mathematics and
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Computer Science, 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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//paragraph [1] Title: [{\Large \bf] [}]
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//paragraph [10] Footnote: [{\footnote{] [}}]
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//[TOC] [\tableofcontents]
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[1] Declaration of UploadUnit
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May 2010, Daniel Brockmann
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1 Overview
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The UploadUnit is a spatio-temporal point with the following attributes:
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- Moving object id (id)
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- Time instant (t)
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- 2D position information (pos)
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It represents the current position and time of a moving object.
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******************************************************************************/
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#ifndef __UPLOAD_UNIT_H__
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#define __UPLOAD_UNIT_H__
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#include "NestedList.h"
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#include "ListUtils.h"
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/******************************************************************************
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2 Definition of UnitPos
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The UnitPos structure is a position information in dependence on a 2D point.
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******************************************************************************/
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struct UnitPos
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{
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UnitPos() {}
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UnitPos( double X, double Y ): x( X ), y( Y ) {}
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double x; // x coordinate
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double y; // y coordinate
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};
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/******************************************************************************
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3 Declaration of class UploadUnit
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******************************************************************************/
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class UploadUnit : public Attribute
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{
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public:
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// Basic constructor
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UploadUnit( int ID, Instant T, UnitPos POS);
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// Copy constructor
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UploadUnit( const UploadUnit& UNIT );
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// Standard constructor
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UploadUnit() {}
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// Destructor
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~UploadUnit() {}
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// The mandatory set of algebra support functions
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static Word In( const ListExpr typeInfo, const ListExpr instance,
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const int errorPos, ListExpr& errorInfo, bool& correct );
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static ListExpr Out( ListExpr typeInfo, Word value );
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static Word Create( const ListExpr typeInfo );
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static void Delete( const ListExpr typeInfo, Word& w );
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static bool Open( SmiRecord& valueRecord, size_t& offset,
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const ListExpr typeInfo, Word& value );
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static bool Save( SmiRecord& valueRecord, size_t& offset,
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const ListExpr typeInfo, Word& w );
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static void Close( const ListExpr typeInfo, Word& w );
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static Word Clone( const ListExpr typeInfo, const Word& w );
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static bool KindCheck( ListExpr type, ListExpr& errorInfo );
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static int SizeOfObj();
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static void* Cast(void* addr);
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static ListExpr Property();
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// type name used in Secondo
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inline static const std::string BasicType() { return "uploadunit";}
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static const bool checkType(const ListExpr type){
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return listutils::isSymbol(type, BasicType());
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}
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// Methods for the abstract Attribute class
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int NumOfFLOBs() const;
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Flob *GetFLOB(const int i);
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int Compare(const Attribute*) const;
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bool Adjacent(const Attribute*) const;
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UploadUnit* Clone() const;
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size_t Sizeof() const;
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size_t HashValue() const;
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void CopyFrom(const Attribute* right);
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std::ostream& Print( std::ostream& os ) const;
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// Returns the moving object id
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int GetID() const;
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// Returns the instant of time
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Instant GetTime() const;
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// Returns the position information
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UnitPos GetPos() const;
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private:
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int id; // moving object id
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Instant t; // instant of time
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UnitPos pos; // position information
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};
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#endif
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