85 lines
2.4 KiB
C++
85 lines
2.4 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_EXECUTOR_OB_DIRECT_TRANSMIT_
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#define OCEANBASE_SQL_EXECUTOR_OB_DIRECT_TRANSMIT_
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#include "sql/engine/ob_phy_operator.h"
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#include "sql/engine/ob_single_child_phy_operator.h"
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#include "sql/executor/ob_transmit.h"
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namespace oceanbase {
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namespace sql {
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class ObDirectTransmitInput : public ObTransmitInput {
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OB_UNIS_VERSION_V(1);
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public:
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ObDirectTransmitInput();
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virtual ~ObDirectTransmitInput();
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virtual int init(ObExecContext& ctx, ObTaskInfo& task_info, const ObPhyOperator& op);
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virtual ObPhyOperatorType get_phy_op_type() const
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{
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return PHY_DIRECT_TRANSMIT;
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}
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private:
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DISALLOW_COPY_AND_ASSIGN(ObDirectTransmitInput);
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};
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class ObDirectTransmit : public ObTransmit {
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private:
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class ObDirectTransmitCtx : public ObTransmitCtx {
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friend class ObDirectTransmit;
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public:
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explicit ObDirectTransmitCtx(ObExecContext& ctx) : ObTransmitCtx(ctx)
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{}
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virtual ~ObDirectTransmitCtx()
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{}
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virtual void destroy()
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{
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ObTransmitCtx::destroy();
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}
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private:
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DISALLOW_COPY_AND_ASSIGN(ObDirectTransmitCtx);
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};
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public:
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explicit ObDirectTransmit(common::ObIAllocator& alloc);
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virtual ~ObDirectTransmit();
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virtual int create_operator_input(ObExecContext& ctx) const;
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protected:
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int get_next_row(ObExecContext& ctx, const ObNewRow*& row) const override;
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private:
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virtual int inner_get_next_row(ObExecContext& ctx, const common::ObNewRow*& row) const;
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/**
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* @brief init operator context, will create a physical operator context (and a current row space)
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* @param ctx[in], execute context
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* @return if success, return OB_SUCCESS, otherwise, return errno
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*/
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virtual int init_op_ctx(ObExecContext& ctx) const;
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private:
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// disallow copy assign
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DISALLOW_COPY_AND_ASSIGN(ObDirectTransmit);
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};
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} // namespace sql
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} // namespace oceanbase
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#endif /* OCEANBASE_SQL_EXECUTOR_OB_DIRECT_TRANSMIT_ */
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//// end of header file
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