81b8923b14
Co-authored-by: tushicheng <18829573815@163.com> Co-authored-by: HaHaJeff <jeffzhouhhh@gmail.com> Co-authored-by: dimstars <liangjinrongcm@gmail.com>
86 lines
2.6 KiB
C++
86 lines
2.6 KiB
C++
/**
|
|
* Copyright (c) 2021 OceanBase
|
|
* OceanBase CE is licensed under Mulan PubL v2.
|
|
* You can use this software according to the terms and conditions of the Mulan PubL v2.
|
|
* You may obtain a copy of Mulan PubL v2 at:
|
|
* http://license.coscl.org.cn/MulanPubL-2.0
|
|
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
|
|
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
|
|
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
|
|
* See the Mulan PubL v2 for more details.
|
|
*/
|
|
|
|
#ifndef OCEANBASE_SHARE_OB_COMMON_ID_H_
|
|
#define OCEANBASE_SHARE_OB_COMMON_ID_H_
|
|
|
|
#include <stdint.h>
|
|
#include "lib/utility/ob_print_utils.h" // TO_STRING_KV
|
|
#include "share/ob_display_list.h" // ObDisplayType
|
|
|
|
namespace oceanbase
|
|
{
|
|
namespace share
|
|
{
|
|
|
|
// Define a common ID type for all ID requirement.
|
|
class ObCommonID
|
|
{
|
|
public:
|
|
static const int64_t INVALID_ID = -1;
|
|
|
|
public:
|
|
ObCommonID() : id_(INVALID_ID) {}
|
|
ObCommonID(const ObCommonID &other) : id_(other.id_) {}
|
|
explicit ObCommonID(const int64_t id) : id_(id) {}
|
|
~ObCommonID() { reset(); }
|
|
|
|
public:
|
|
int64_t id() const { return id_; }
|
|
void reset() { id_ = INVALID_ID; }
|
|
|
|
// assignment
|
|
ObCommonID &operator=(const int64_t id) { id_ = id; return *this; }
|
|
ObCommonID &operator=(const ObCommonID &other) { id_ = other.id_; return *this; }
|
|
|
|
bool is_valid() const { return INVALID_ID != id_; }
|
|
|
|
// compare operator
|
|
bool operator == (const ObCommonID &other) const { return id_ == other.id_; }
|
|
bool operator > (const ObCommonID &other) const { return id_ > other.id_; }
|
|
bool operator != (const ObCommonID &other) const { return id_ != other.id_; }
|
|
bool operator < (const ObCommonID &other) const { return id_ < other.id_; }
|
|
bool operator <= (const ObCommonID &other) const { return id_ <= other.id_; }
|
|
bool operator >= (const ObCommonID &other) const { return id_ >= other.id_; }
|
|
int compare(const ObCommonID &other) const
|
|
{
|
|
if (id_ == other.id_) {
|
|
return 0;
|
|
} else if (id_ < other.id_) {
|
|
return -1;
|
|
} else {
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
/////////////////////// for ObDisplayType ///////////////////////
|
|
//NOTE: to use ObDisplayList, we should implement all interfaces of ObDisplayType
|
|
//
|
|
// max length of "id": 20 + '\0'
|
|
int64_t max_display_str_len() const { return 21; }
|
|
// convert to "id"
|
|
int to_display_str(char *buf, const int64_t len, int64_t &pos) const;
|
|
// parse from "id"
|
|
int parse_from_display_str(const common::ObString &str);
|
|
|
|
uint64_t hash() const;
|
|
NEED_SERIALIZE_AND_DESERIALIZE;
|
|
TO_STRING_KV(K_(id));
|
|
private:
|
|
int64_t id_;
|
|
};
|
|
|
|
}
|
|
}
|
|
|
|
#endif /* OCEANBASE_SHARE_OB_COMMON_ID_H_ */
|