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/* Copyright (C) 2010 webis.de
 * All rights reserved.
 */
#ifndef AITOOLS_INVERTEDINDEX_VALUE_HPP
#define AITOOLS_INVERTEDINDEX_VALUE_HPP

#include "ByteBuffer.hpp"
#include "Converter.hpp"
#include <iostream>

namespace aitools {
namespace invertedindex {

class Value {

protected: // class data

        static const size_t sizeof_int8_t = sizeof(int8_t);

        static const size_t sizeof_size_t = sizeof(size_t);

        static int tmp_int;

public: // c'tor / d'tor

        Value() {};

        virtual ~Value() {};

public: // member

        virtual void clear() = 0;

        virtual inline double score() const = 0;

        virtual void parse(std::istream& is) = 0;

        virtual void print(std::ostream& os) const = 0;

        virtual void to_bytes(ByteBuffer& buffer) const = 0;

        virtual void wrap(const char* data, size_t size) = 0;

        void wrap(const ByteBuffer& buffer);

};

} // namespace invertedindex
} // namespace aitools

namespace std {

        istream&
        operator>>(istream& is, aitools::invertedindex::Value& value);

        ostream&
        operator<<(ostream& os, const aitools::invertedindex::Value& value);

} // namespace std

#endif // AITOOLS_INVERTEDINDEX_VALUE_HPP

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