48 lines
1.7 KiB
C++
48 lines
1.7 KiB
C++
// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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#pragma once
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#include "exec/exec_node.h"
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namespace doris {
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// Pull load task root
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class PlTaskRoot : public ExecNode {
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public:
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PlTaskRoot(ObjectPool* pool, const TPlanNode& tnode, const DescriptorTbl& descs);
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virtual ~PlTaskRoot();
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virtual Status init(const TPlanNode& tnode, RuntimeState* state = nullptr);
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virtual Status prepare(RuntimeState* state);
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virtual Status open(RuntimeState* state);
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virtual Status get_next(RuntimeState* state, RowBatch* row_batch, bool* eos);
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virtual Status close(RuntimeState* state);
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// the number of senders needs to be set after the c'tor, because it's not
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// recorded in TPlanNode, and before calling prepare()
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void set_num_senders(int num_senders) { _num_senders = num_senders; }
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protected:
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virtual void debug_string(int indentation_level, std::stringstream* out) const;
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private:
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int _num_senders; // needed for _stream_recvr construction
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};
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} // namespace doris
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