ICollectionCursor.h

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/*
  Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef COLLECTIONBASE_ICOLLECTIONCURSOR_H
#define COLLECTIONBASE_ICOLLECTIONCURSOR_H
 
#include <cstddef>
 
class Token;
 
namespace pool {
 
  class CollectionRowBuffer;
 
  class ICollectionCursor
  {
  public:
    virtual std::size_t size() = 0;
 
    virtual bool seek(std::size_t position) = 0;
 
    virtual bool next() = 0;
 
    virtual const pool::CollectionRowBuffer& currentRow() const = 0;
 
    virtual const Token& eventRef() const = 0;
 
    virtual void close() = 0;
 
//  protected:   // MN: why protected?
    virtual ~ICollectionCursor() {}
  };
 
}
 
#endif