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column.cc
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column.cc
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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
#include "arrow/table/column.h"
#include <memory>
#include <sstream>
#include "arrow/field.h"
#include "arrow/util/status.h"
namespace arrow {
ChunkedArray::ChunkedArray(const ArrayVector& chunks) :
chunks_(chunks) {
length_ = 0;
for (const std::shared_ptr<Array>& chunk : chunks) {
length_ += chunk->length();
null_count_ += chunk->null_count();
}
}
Column::Column(const std::shared_ptr<Field>& field, const ArrayVector& chunks) :
field_(field) {
data_ = std::make_shared<ChunkedArray>(chunks);
}
Column::Column(const std::shared_ptr<Field>& field,
const std::shared_ptr<ChunkedArray>& data) :
field_(field),
data_(data) {}
Status Column::ValidateData() {
for (int i = 0; i < data_->num_chunks(); ++i) {
const std::shared_ptr<DataType>& type = data_->chunk(i)->type();
if (!this->type()->Equals(type)) {
std::stringstream ss;
ss << "In chunk " << i << " expected type "
<< this->type()->ToString()
<< " but saw "
<< type->ToString();
return Status::Invalid(ss.str());
}
}
return Status::OK();
}
} // namespace arrow