ItemIterator.h

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#ifndef EXTSORT_ITEMITERATOR_H
#define EXTSORT_ITEMITERATOR_H
 
#include "tdb.h"
 
namespace taco {
 
class ItemIterator {
public:
    virtual ~ItemIterator() {}
 
    virtual bool Next() = 0;
 
    virtual const char* GetCurrentItem(FieldOffset& p_reclen) = 0;
 
    virtual bool SupportsRewind() const = 0;
 
    virtual uint64_t SavePosition() const = 0;
 
    virtual void Rewind(uint64_t pos) = 0;
 
    virtual void EndScan() = 0;
};
 
}   // namespace taco
 
#endif      // EXTSORT_ITEMITERATOR_H