ConnectionIterator.h

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#ifndef CONNECTIONITERATOR_H
#define CONNECTIONITERATOR_H

#include "RandomDistribution.h"
#include "ThreadSpecificRandomEngine.h"
#include "SimObjectIDSortedVector.h"
#include "SimObjectPopulation.h"

#include <utility>
using std::pair;

#include <cmath>


class ConnectionIterator {

    public:

        ConnectionIterator();

        virtual ~ConnectionIterator();



        virtual void init( const SimObjectPopulation &src, const SimObjectPopulation &dst ) = 0;

        virtual void reset(SimObject::ID::SortedVector::const_iterator src_begin,
                           SimObject::ID::SortedVector::const_iterator src_end,
                           SimObject::ID::SortedVector::const_iterator dst_begin,
                           SimObject::ID::SortedVector::const_iterator dst_end ) = 0;

        virtual bool next( pair<SimObject::ID, SimObject::ID> &connection ) = 0;

        virtual bool getIdx(size_t &src_idx, size_t &dst_idx);

        virtual size_t estimate() { return 0; }




        void setRNDEngine(RandomEngine *engine) {
            m_rnd_eng = engine;
        };

        void unsetRNDEngine(void) {
            theThreadSpecificRandomEngine.init();
            m_rnd_eng =theThreadSpecificRandomEngine.get();
        };


    protected:

        RandomEngine *m_rnd_eng;

        pair<size_t, size_t> last_conn_idx;
        bool last_conn_valid;
};

#endif

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