/**
 * 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_SQL_EXECUTOR_OB_EXECUTOR_
#define OCEANBASE_SQL_EXECUTOR_OB_EXECUTOR_

#include "share/ob_define.h"

namespace oceanbase {
namespace sql {
class ObPhysicalPlan;
class ObExecContext;
class ObPhyOperator;

class ObExecutor {
public:
  ObExecutor();
  ~ObExecutor(){};
  int init(ObPhysicalPlan* plan);
  void reset();
  int execute_plan(ObExecContext& ctx);
  int close(ObExecContext& ctx);

private:
  // disallow copy
  ObExecutor(const ObExecutor& other);
  ObExecutor& operator=(const ObExecutor& ohter);

private:
  int execute_local_single_partition_plan(ObExecContext& ctx);
  int execute_remote_single_partition_plan(ObExecContext& ctx);
  int execute_distributed_plan(ObExecContext& ctx);
  int execute_old_px_plan(ObExecContext& ctx);
  int execute_static_cg_px_plan(ObExecContext& ctx);

private:
  bool inited_;
  ObPhysicalPlan* phy_plan_;
  uint64_t execution_id_;
};
}  // namespace sql
}  // namespace oceanbase
#endif /* OCEANBASE_SQL_EXECUTOR_OB_EXECUTOR_ */