#ifndef _TUPLE_MERGER_H_
#define _TUPLE_MERGER_H_

struct datatuple;

typedef datatuple* (*merge_fn_t) (const datatuple*, const datatuple *);

datatuple* append_merger(const datatuple *t1, const datatuple *t2);
datatuple* replace_merger(const datatuple *t1, const datatuple *t2);


class tuplemerger
{

public:

    tuplemerger(merge_fn_t merge_fp) 
        {
            this->merge_fp = merge_fp;
        }

    
    datatuple* merge(const datatuple *t1, const datatuple *t2);

private:

    merge_fn_t merge_fp;

};



#endif