SimObjectVariationFactory.h

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#ifndef SIMOBJECTVARIATIONFACTORY_H_
#define SIMOBJECTVARIATIONFACTORY_H_

#include "SimObjectFactory.h"

#include <string>
using std::string;

#include <map>
using std::map;

class SimObject;
class Field;

class RandomDistribution;
class RandomEngine;


class SimObjectVariationFactory : public SimObjectFactory {
  
    public:
        SimObjectVariationFactory( SimObjectFactory const& model );
        
        // copy constructor
        SimObjectVariationFactory( SimObjectVariationFactory const& model );

        virtual ~SimObjectVariationFactory();

        void set( string const& fieldname, RandomDistribution const& rd );

        virtual SimObject* create( void ) const;

        virtual SimObject* create( RandomEngine *eng ) const;

        virtual object_type_t getObjectTypeID() const;


        void setRandomEngine( RandomEngine *eng ) {
            rnd_eng = eng;
        };

        void unsetRandomEngine( void );

    protected:

        SimObject *m_base;
        RandomEngine *rnd_eng;

        struct FieldRngPair {
            FieldRngPair() : field(NULL), rng( NULL ) {}
            ;
            FieldRngPair( Field const* field, RandomDistribution *rng) : field(field), rng(rng) {}
            ;
            Field const* field;
            RandomDistribution *rng;
        };

        typedef map< string, FieldRngPair* > var_fields_t;
        var_fields_t m_var_fields;
};

#endif /*SIMOBJECTVARIATIONFACTORY_H_*/

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