71 lines
2.3 KiB
C++
71 lines
2.3 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_ENGINE_OB_OPERATOR_FACTORY_H_
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#define OCEANBASE_ENGINE_OB_OPERATOR_FACTORY_H_
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#include "lib/allocator/ob_allocator.h"
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#include "sql/engine/ob_phy_operator_type.h"
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namespace oceanbase {
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namespace sql {
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class ObOpSpec;
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class ObOperator;
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class ObOpInput;
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class ObExecContext;
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class ObStaticEngineCG;
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class ObLogicalOperator;
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struct ObOperatorFactory {
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public:
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// allocate operator specification
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static int alloc_op_spec(
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common::ObIAllocator& alloc, const ObPhyOperatorType type, const int64_t child_cnt, ObOpSpec*& spec);
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// allocate operator
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static int alloc_operator(common::ObIAllocator& alloc, ObExecContext& exec_ctx, const ObOpSpec& spec,
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ObOpInput* input, const int64_t child_cnt, ObOperator*& op);
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// allocate operator input
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static int alloc_op_input(
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common::ObIAllocator& alloc, ObExecContext& exec_ctx, const ObOpSpec& spec, ObOpInput*& input);
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// generate operator specification
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static int generate_spec(ObStaticEngineCG& cg, ObLogicalOperator& log_op, ObOpSpec& spec, const bool in_root_job);
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static inline bool is_registered(const ObPhyOperatorType type)
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{
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return type >= 0 && type < PHY_END && NULL != G_ALL_ALLOC_FUNS_[type].op_func_;
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}
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static inline bool has_op_input(const ObPhyOperatorType type)
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{
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return type >= 0 && type < PHY_END && NULL != G_ALL_ALLOC_FUNS_[type].input_func_;
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}
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struct AllocFun {
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__typeof__(&ObOperatorFactory::alloc_op_spec) spec_func_;
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__typeof__(&ObOperatorFactory::alloc_operator) op_func_;
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__typeof__(&ObOperatorFactory::alloc_op_input) input_func_;
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__typeof__(&ObOperatorFactory::generate_spec) gen_spec_func_;
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};
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private:
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static AllocFun* G_ALL_ALLOC_FUNS_;
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};
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} // end namespace sql
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} // end namespace oceanbase
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#endif // OCEANBASE_ENGINE_OB_OPERATOR_FACTORY_H_
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