Files
secondo/Algebras/MainMemory2/MEdge.h
2026-01-23 17:03:45 +08:00

108 lines
2.2 KiB
C++

/*
----
This file is part of SECONDO.
Copyright (C) 2017,
University in Hagen,
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 MEDGE_H
#define MEDGE_H
namespace mm2algebra{
class MEdge{
public:
MEdge():info(0){}
MEdge(const int _source, const int _target,
const double _costs, Tuple* _info):
source(_source), target(_target), costs(_costs),
info(_info) {
if(info){
info->IncReference();
}
}
MEdge(const MEdge& e): source(e.source), target(e.target),costs(e.costs),
info(e.info){
if(info){
info->IncReference();
}
}
~MEdge(){
if(info){
info->DeleteIfAllowed();
}
}
MEdge& operator=(const MEdge& e){
source = e.source;
target = e.target;
costs = e.costs;
if(info){
info->DeleteIfAllowed();
}
info = e.info;
if(info){
info->IncReference();
}
return *this;
}
std::ostream& print(std::ostream& out, std::vector<std::string>* names){
out << source << " ";
out << "--- ";
out << costs;
out << " --> ";
out << target;
out << std::endl;
if(names!= nullptr){
if(info==nullptr){
cout << "No edge info";
} else {
info->PrintWithNames(out,*names);
}
out << endl;
}
return out;
}
int source;
int target;
double costs;
Tuple* info;
};
} // end of namespace
#endif