ClickHouse/dbms/include/DB/DataStreams/JSONCompactRowOutputStream.h
2013-09-07 02:03:13 +00:00

32 lines
629 B
C++

#pragma once
#include <Poco/SharedPtr.h>
#include <DB/Core/Block.h>
#include <DB/IO/WriteBuffer.h>
#include <DB/IO/WriteBufferValidUTF8.h>
#include <DB/DataStreams/JSONRowOutputStream.h>
namespace DB
{
/** Поток для вывода данных в формате JSONCompact.
*/
class JSONCompactRowOutputStream : public JSONRowOutputStream
{
public:
JSONCompactRowOutputStream(WriteBuffer & ostr_, const Block & sample_);
void writeField(const Field & field);
void writeFieldDelimiter();
void writeRowStartDelimiter();
void writeRowEndDelimiter();
protected:
void writeTotals();
void writeExtremes();
};
}