72 lines
2.5 KiB
C++
72 lines
2.5 KiB
C++
// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
|
||
|
||
//-----------------------------------------------------------------------------
|
||
// eoFactory.h
|
||
// (c) GeNeura Team, 1998
|
||
/*
|
||
This library is free software; you can redistribute it and/or
|
||
modify it under the terms of the GNU Lesser General Public
|
||
License as published by the Free Software Foundation; either
|
||
version 2 of the License, or (at your option) any later version.
|
||
|
||
This library 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
|
||
Lesser General Public License for more details.
|
||
|
||
You should have received a copy of the GNU Lesser General Public
|
||
License along with this library; if not, write to the Free Software
|
||
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
||
|
||
Contact: todos@geneura.ugr.es, http://geneura.ugr.es
|
||
*/
|
||
//-----------------------------------------------------------------------------
|
||
|
||
#ifndef _EOFACTORY_H
|
||
#define _EOFACTORY_H
|
||
|
||
//-----------------------------------------------------------------------------
|
||
#include <eoObject.h>
|
||
|
||
//-----------------------------------------------------------------------------
|
||
|
||
/** EO Factory. A factory is used to create other objects. In particular,
|
||
it can be used so that objects of that kind can´t be created in any other
|
||
way. It should be instantiated with anything that needs a factory, like selectors
|
||
or whatever; but the instance class should be the parent class from which all the
|
||
object that are going to be created descend. This class basically defines an interface,
|
||
as usual. The base factory class for each hierarchy should be redefined every time a new
|
||
object is added to the hierarchy, which is not too good, but in any case, some code would
|
||
have to be modified*/
|
||
template<class EOClass>
|
||
class eoFactory: public eoObject {
|
||
|
||
public:
|
||
|
||
/// @name ctors and dtors
|
||
//{@
|
||
/// constructor
|
||
eoFactory( ) {}
|
||
|
||
/// destructor
|
||
virtual ~eoFactory() {}
|
||
//@}
|
||
|
||
/** Another factory methods: creates an object from an std::istream, reading from
|
||
it whatever is needed to create the object. Usually, the format for the std::istream will be\\
|
||
objectType parameter1 parameter2 ... parametern\\
|
||
*/
|
||
virtual EOClass* make(std::istream& _is) = 0;
|
||
|
||
///@name eoObject methods
|
||
//@{
|
||
/** Return the class id */
|
||
virtual std::string className() const { return "eoFactory"; }
|
||
|
||
/** Read and print are left without implementation */
|
||
//@}
|
||
|
||
};
|
||
|
||
|
||
#endif
|