ClickHouse/src/Compression/CompressionCodecNone.h
2020-09-14 22:15:25 +03:00

32 lines
773 B
C++

#pragma once
#include <IO/WriteBuffer.h>
#include <Compression/ICompressionCodec.h>
#include <IO/BufferWithOwnMemory.h>
#include <Parsers/StringRange.h>
namespace DB
{
class CompressionCodecNone : public ICompressionCodec
{
public:
CompressionCodecNone();
uint8_t getMethodByte() const override;
void updateHash(SipHash & hash) const override;
protected:
UInt32 doCompressData(const char * source, UInt32 source_size, char * dest) const override;
void doDecompressData(const char * source, UInt32 source_size, char * dest, UInt32 uncompressed_size) const override;
bool isCompression() const override { return false; }
bool isGenericCompression() const override { return false; }
bool isNone() const override { return true; }
};
}