#pragma once

#include <cstdint>
#include <cstdio>
#include "leveldb/slice.h"
#include "util/serialize_value.h"
namespace fielddb {
using namespace leveldb;
/*根据写入的流程可以推断，需要存在metaDB中的数据其实都是带索引的数据,也就是FieldArray*/
class MetaKV {
    MetaKV(Slice &Key,FieldArray Fields):
        Key(Key),Fields(Fields),tag(0),meta_seq(0) { }
    inline int get_seq() { return meta_seq; }
    inline void set_seq(int meta_seq) { this->meta_seq = meta_seq; }
    inline void setPut() { tag = PUT; }
    inline void setDelete() { tag = DELETE; }
    Slice metaKey();
    Slice metaValue();
private:
    enum {PUT = 0x0,DELETE = 0x1};
    uint64_t meta_seq;
    uint8_t tag;
    Slice &Key;
    FieldArray Fields;
};
}