69 lines
1.8 KiB
C++
69 lines
1.8 KiB
C++
// -*- mode: c++; c-indent-level: 4; c++-member-init-indent: 8; comment-column: 35; -*-
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// eoMonOpFactory.h
|
|
// (c) GeNeura Team, 1998
|
|
//-----------------------------------------------------------------------------
|
|
|
|
#ifndef _EOOPFACTORY_H
|
|
#define _EOOPFACTORY_H
|
|
|
|
#include <eoFactory.h>
|
|
#include <eoDup.h>
|
|
#include <eoKill.h>
|
|
#include <eoTranspose.h>
|
|
#include <eoXOver2.h>
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
/** EO Factory. An instance of the factory class to create monary operators.
|
|
@see eoSelect*/
|
|
template< class EOT>
|
|
class eoOpFactory: public eoFactory< eoOp<EOT> > {
|
|
|
|
public:
|
|
|
|
/// @name ctors and dtors
|
|
//{@
|
|
/// constructor
|
|
eoOpFactory( ) {}
|
|
|
|
/// destructor
|
|
virtual ~eoOpFactory() {}
|
|
//@}
|
|
|
|
/** Another factory method: creates an object from an istream, reading from
|
|
it whatever is needed to create the object. Usually, the format for the istream will be\\
|
|
objectType parameter1 parameter2 ... parametern\\
|
|
If there are problems, an exception is raised; it should be caught at the
|
|
upper level, because it might be something for that level
|
|
@param _is an stream from where a single line will be read
|
|
@throw runtime_exception if the object type is not known
|
|
*/
|
|
virtual eoOp<EOT>* make(istream& _is) {
|
|
eoOp<EOT> * opPtr = NULL;
|
|
string objectTypeStr;
|
|
_is >> objectTypeStr;
|
|
if ( objectTypeStr == "eoDup") {
|
|
opPtr = new eoDup<EOT>();
|
|
}
|
|
if ( objectTypeStr == "eoKill" ) {
|
|
opPtr = new eoKill<EOT>( );
|
|
}
|
|
if ( objectTypeStr == "eoTranspose" ) {
|
|
opPtr = new eoTranspose<EOT>( );
|
|
}
|
|
if ( objectTypeStr == "eoXOver2" ) {
|
|
opPtr = new eoXOver2<EOT>( );
|
|
}
|
|
if ( !opPtr ) {
|
|
throw objectTypeStr;
|
|
}
|
|
return opPtr;
|
|
}
|
|
|
|
|
|
};
|
|
|
|
|
|
#endif _EOOPFACTORY_H
|