/**
 * 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_OBSERVER_VIRTUAL_TABLE_OB_SESSION_VARIABLES_
#define OCEANBASE_OBSERVER_VIRTUAL_TABLE_OB_SESSION_VARIABLES_
#include "share/ob_virtual_table_scanner_iterator.h"
namespace oceanbase {
namespace share {
class ObBasicSysVar;
namespace schema {
class ObTenantSchema;
}
}  // namespace share
namespace sql {
class ObSQLSessionInfo;
}
namespace common {
class ObObj;
}
namespace observer {
class ObSessionVariables : public common::ObVirtualTableScannerIterator {
public:
  ObSessionVariables();
  virtual ~ObSessionVariables();
  virtual int inner_get_next_row(common::ObNewRow*& row);
  virtual void reset();
  inline void set_sys_variable_schema(const share::schema::ObSysVariableSchema*& sys_variable_schema)
  {
    sys_variable_schema_ = sys_variable_schema;
  }

private:
  int set_pc_conf(const share::ObBasicSysVar* sys_var, common::ObObj& cell);

private:
  const share::schema::ObSysVariableSchema* sys_variable_schema_;
  DISALLOW_COPY_AND_ASSIGN(ObSessionVariables);
};
}  // namespace observer
}  // namespace oceanbase
#endif /* OCEANBASE_OBSERVER_VIRTUAL_TABLE_OB_SESSION_VARIABLES_ */
