ClickHouse/src/DataTypes/DataTypeWithSimpleSerialization.h

#pragma once
#include <DataTypes/IDataType.h>

namespace DB
{

/// Helper class to define same IDataType text (de)serialization for all the variants (escaped, quoted, JSON, CSV).
/// You need to define serializeText() and deserializeText() in derived class.
class DataTypeWithSimpleSerialization : public IDataType
{
protected:
    DataTypeWithSimpleSerialization()
    {}

    void serializeTextEscaped(const IColumn & column, size_t row_num, WriteBuffer & ostr, const FormatSettings & settings) const override
    {
        serializeText(column, row_num, ostr, settings);
    }

    void serializeTextQuoted(const IColumn & column, size_t row_num, WriteBuffer & ostr, const FormatSettings & settings) const override
    {
        serializeText(column, row_num, ostr, settings);
    }

    void serializeTextJSON(const IColumn & column, size_t row_num, WriteBuffer & ostr, const FormatSettings & settings) const override
    {
        serializeText(column, row_num, ostr, settings);
    }

    void serializeTextCSV(const IColumn & column, size_t row_num, WriteBuffer & ostr, const FormatSettings & settings) const override
    {
        serializeText(column, row_num, ostr, settings);
    }

    void deserializeWholeText(IColumn & column, ReadBuffer & istr, const FormatSettings & settings) const override
    {
        deserializeText(column, istr, settings);
    }

    void deserializeTextEscaped(IColumn & column, ReadBuffer & istr, const FormatSettings & settings) const override
    {
        deserializeText(column, istr, settings);
    }

    void deserializeTextQuoted(IColumn & column, ReadBuffer & istr, const FormatSettings & settings) const override
    {
        deserializeText(column, istr, settings);
    }

    void deserializeTextJSON(IColumn & column, ReadBuffer & istr, const FormatSettings & settings) const override
    {
        deserializeText(column, istr, settings);
    }

    void deserializeTextCSV(IColumn & column, ReadBuffer & istr, const FormatSettings & settings) const override
    {
        deserializeText(column, istr, settings);
    }

    virtual void deserializeText(IColumn & column, ReadBuffer & istr, const FormatSettings &) const = 0;
};

}