/**
 * 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_OB_SET_TRANSACTION_RESOLVER_H_
#define OCEANBASE_SQL_OB_SET_TRANSACTION_RESOLVER_H_
#include "sql/resolver/cmd/ob_cmd_resolver.h"

namespace oceanbase {
namespace sql {
class ObSetTransactionResolver : public ObCMDResolver {
public:
  explicit ObSetTransactionResolver(ObResolverParams& params);
  virtual ~ObSetTransactionResolver();

  virtual int resolve(const ParseNode& parse_tree);

private:
  int build_isolation_expr(ObRawExpr*& expr, int32_t level);
  int build_access_expr(ObRawExpr*& expr, const bool is_read_only);
  int scope_resolve(const ParseNode& parse_tree, share::ObSetVar::SetScopeType& scope);
  int access_mode_resolve(const ParseNode& parse_tree, bool& is_read_only);
  int transaction_characteristics_resolve(const ParseNode& parse_tree, bool& is_read_only, int32_t& level);
  int isolation_level_resolve(const ParseNode& parse_tree, int32_t& level);
  DISALLOW_COPY_AND_ASSIGN(ObSetTransactionResolver);
};

}  // end namespace sql
}  // end namespace oceanbase

#endif /* OCEANBASE_SQL_OB_SET_TRANSACTION_RESOLVER_H_*/
