/**

* 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_TASK_EXECUTOR_

#define OCEANBASE_SQL_EXECUTOR_TASK_EXECUTOR_

#include "ob_task_info.h"

namespace oceanbase

{

namespace sql

{

class ObJob;

class ObTaskInfo;

class ObExecContext;

class ObTaskExecutor

{

public:

ObTaskExecutor();

virtual ~ObTaskExecutor();

virtual int execute(ObExecContext &query_ctx, ObJob *job, ObTaskInfo *task_info) = 0;

inline virtual void reset() {}

protected:

int build_task_op_input(ObExecContext &query_ctx,

ObTaskInfo &task_info,

const ObOpSpec &root_spec); // for static engine

int should_skip_failed_tasks(ObTaskInfo &task_info, bool &skip_failed_tasks) const;

private:

DISALLOW_COPY_AND_ASSIGN(ObTaskExecutor);

};

} /* ns sql */

} /* ns oceanbase */

#endif /* OCEANBASE_SQL_EXECUTOR_TASK_EXECUTOR_ */

//// end of header file