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oceanbase/src/share/schema/ob_sys_variable_sql_service.h
wangzelin.wzl 93a1074b0c patch 4.0
2022-10-24 17:57:12 +08:00

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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_SCHEMA_OB_SYS_VARIABLE_SQL_SERVICE_H_
#define OCEANBASE_SHARE_SCHEMA_OB_SYS_VARIABLE_SQL_SERVICE_H_
#include "ob_ddl_sql_service.h"
#include "share/ob_dml_sql_splicer.h"
//#include "share/schema/ob_schema_struct.h"
namespace oceanbase
{
namespace common
{
class ObISQlClient;
}
namespace share
{
namespace schema
{
struct ObSchemaOperation;
class ObSysVariableSchema;
class ObSysVarSchema;
class ObSysVariableSqlService : public ObDDLSqlService
{
public:
ObSysVariableSqlService(ObSchemaService &schema_service)
: ObDDLSqlService(schema_service) {}
virtual ~ObSysVariableSqlService() {}
virtual int replace_sys_variable(ObSysVariableSchema &sys_variable_schema,
common::ObISQLClient &sql_client,
const ObSchemaOperationType &operation_type,
const common::ObString *ddl_stmt_str = NULL);
private:
int replace_system_variable(const ObSysVarSchema &sysvar_schema,
const ObSchemaOperationType &op,
common::ObISQLClient &sql_client,
const common::ObString *ddl_stmt_str);
int replace_system_variable(const ObSysVarSchema &sysvar_schema, common::ObISQLClient &sql_client);
int gen_sys_variable_dml(ObDMLSqlSplicer &dml, const ObSysVarSchema &sysvar_schema, bool is_history);
private:
DISALLOW_COPY_AND_ASSIGN(ObSysVariableSqlService);
};
} //end of namespace schema
} //end of namespace share
} //end of namespace oceanbase
#endif //OCEANBASE_SHARE_SCHEMA_OB_SYS_VARIABLE_SQL_SERVICE_H_