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https://github.com/aykhans/AzSuicideDataVisualization.git
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53 lines
1.6 KiB
C++
53 lines
1.6 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 <memory>
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#include "arrow/python/common.h"
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#include "arrow/python/visibility.h"
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#include "arrow/record_batch.h"
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#include "arrow/result.h"
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#include "arrow/util/macros.h"
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namespace arrow {
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namespace py {
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class ARROW_PYTHON_EXPORT PyRecordBatchReader : public RecordBatchReader {
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public:
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std::shared_ptr<Schema> schema() const override;
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Status ReadNext(std::shared_ptr<RecordBatch>* batch) override;
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// For use from Cython
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// Assumes that `iterable` is borrowed
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static Result<std::shared_ptr<RecordBatchReader>> Make(std::shared_ptr<Schema>,
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PyObject* iterable);
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protected:
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PyRecordBatchReader();
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Status Init(std::shared_ptr<Schema>, PyObject* iterable);
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std::shared_ptr<Schema> schema_;
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OwnedRefNoGIL iterator_;
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};
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} // namespace py
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} // namespace arrow
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