48 lines
1.4 KiB
C++
48 lines
1.4 KiB
C++
/**
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* Copyright (c) 2021 OceanBase
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* OceanBase CE is licensed under Mulan PubL v2.
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* You can use this software according to the terms and conditions of the Mulan PubL v2.
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* You may obtain a copy of Mulan PubL v2 at:
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* http://license.coscl.org.cn/MulanPubL-2.0
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PubL v2 for more details.
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*/
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#ifndef OCEANBASE_SQL_ENGINE_EXPR_OB_I_EXPR_EXTRA_INFO_
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#define OCEANBASE_SQL_ENGINE_EXPR_OB_I_EXPR_EXTRA_INFO_
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#include <stdint.h>
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#include "sql/engine/expr/ob_expr_extra_info_factory.h"
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#include "sql/engine/expr/ob_expr.h"
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namespace oceanbase
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{
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namespace sql
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{
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struct ObIExprExtraInfo
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{
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ObIExprExtraInfo(common::ObIAllocator &alloc, const ObExprOperatorType &type)
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: type_(type)
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{
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UNUSED(alloc);
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}
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public:
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virtual int serialize(char *buf, const int64_t len, int64_t &pos) const = 0;
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virtual int deserialize(const char *buf, const int64_t len, int64_t &pos) = 0;
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virtual int64_t get_serialize_size() const = 0;
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virtual int deep_copy(common::ObIAllocator &allocator,
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const ObExprOperatorType type,
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ObIExprExtraInfo *&copied_info) const = 0;
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public:
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ObExprOperatorType type_;
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};
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} // end namespace sql
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} // end namespace oceanbase
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#endif
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