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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "extendable_string_array_multi_value_read_view.h"
namespace search::attribute {
template <class MultiValueType>
ExtendableStringArrayMultiValueReadView<MultiValueType>::ExtendableStringArrayMultiValueReadView(const std::vector<char>& buffer, const Offsets & offsets, const std::vector<uint32_t>& idx)
: attribute::IMultiValueReadView<MultiValueType>(),
_buffer(buffer),
_offsets(offsets),
_idx(idx),
_copy()
{
}
template <class MultiValueType>
ExtendableStringArrayMultiValueReadView<MultiValueType>::~ExtendableStringArrayMultiValueReadView() = default;
template <class MultiValueType>
vespalib::ConstArrayRef<MultiValueType>
ExtendableStringArrayMultiValueReadView<MultiValueType>::get_values(uint32_t doc_id) const
{
auto offset = _idx[doc_id];
auto next_offset = _idx[doc_id + 1];
vespalib::ConstArrayRef<uint32_t> raw(&_offsets[offset], next_offset - offset);
if (_copy.size() < raw.size()) {
_copy.resize(raw.size());
}
auto dst = _copy.data();
for (auto &src : raw) {
*dst = multivalue::ValueBuilder<MultiValueType>::build(_buffer.data() + src, 1);
++dst;
}
return vespalib::ConstArrayRef(_copy.data(), raw.size());
}
template class ExtendableStringArrayMultiValueReadView<const char*>;
template class ExtendableStringArrayMultiValueReadView<multivalue::WeightedValue<const char*>>;
}
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