vector/SupportCounter.hpp

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#ifndef SupportCounter_HPP
#define SupportCounter_HPP

#include "apriori/bodon-vector/vector_typedef.hpp"
//#include <cstdio>
//#include <iterator>   //for test




namespace Bodon
{
namespace vector_based
{
   template<class DATA_STRUCTURE>
   class SupportCounter
   {
      public:
         SupportCounter<DATA_STRUCTURE>() {}

      public:
         void updateCounters( 
            DATA_STRUCTURE& candidates, const std::vector<item_t>& transaction, 
            const unsigned int candidate_size, const counter_t counter_incr );
         void updateCounters( 
            DATA_STRUCTURE& candidates, std::vector<item_t>::const_iterator transaction_beg, 
            std::vector<item_t>::const_iterator transaction_end,
            const unsigned int candidate_size, const counter_t counter_incr );
   };

   template<class DATA_STRUCTURE> inline
   void SupportCounter<DATA_STRUCTURE>::updateCounters( 
      DATA_STRUCTURE& candidates, const std::vector<item_t>& transaction, 
      const unsigned int candidate_size, const counter_t counter_incr )
   {
//      copy(transaction.begin(), transaction.end(), ostream_iterator<item_t>(std::cout, " "));
//      std::cout<<std::endl;
      updateCounters( 
         candidates, transaction.begin(), 
         transaction.end(), candidate_size, counter_incr);

   }
   template<class DATA_STRUCTURE> inline
   void SupportCounter<DATA_STRUCTURE>::updateCounters( 
      DATA_STRUCTURE& candidates, std::vector<item_t>::const_iterator transaction_beg, 
      std::vector<item_t>::const_iterator transaction_end,
      const unsigned int candidate_size, const counter_t counter_incr )
   {
      for(typename DATA_STRUCTURE::iterator it = candidates.begin(); 
          it != candidates.end(); ++it)
      {
         if((*it).first.isContained(transaction_beg, transaction_end ))
            (*it).second += counter_incr;
      }
   }

}
}
#endif

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