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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include <vespa/vespalib/datastore/atomic_entry_ref.h>
namespace search::tensor {
/**
* Represents a graph node for dense tensors (one node per document).
*/
class HnswSimpleNode {
using AtomicEntryRef = vespalib::datastore::AtomicEntryRef;
using EntryRef = vespalib::datastore::EntryRef;
AtomicEntryRef _levels_ref;
public:
HnswSimpleNode()
: _levels_ref()
{
}
AtomicEntryRef& levels_ref() noexcept { return _levels_ref; }
const AtomicEntryRef& levels_ref() const noexcept { return _levels_ref; }
void store_docid(uint32_t docid) noexcept { (void) docid; }
void store_subspace(uint32_t subspace) noexcept { (void) subspace; }
// Mapping from nodeid to docid and subspace.
static uint32_t acquire_docid() noexcept { return 0u; }
static uint32_t acquire_subspace() noexcept { return 0u; }
static constexpr bool identity_mapping = true;
};
}
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