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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 "entryref.h"
#include "entry_ref_filter.h"
#include <vector>
#include <vespa/vespalib/stllike/allocator.h>
namespace vespalib::datastore {
/**
* Remapper for related UniqueStore class, used for adjusting
* references to unique store after compaction.
*/
template <typename RefT>
class UniqueStoreRemapper {
public:
using RefType = RefT;
protected:
EntryRefFilter _filter;
std::vector<std::vector<EntryRef, allocator_large<EntryRef>>> _mapping;
public:
UniqueStoreRemapper(EntryRefFilter&& filter);
virtual ~UniqueStoreRemapper();
EntryRef remap(EntryRef ref) const;
void remap(vespalib::ArrayRef<AtomicEntryRef> refs) const;
const EntryRefFilter& get_entry_ref_filter() const noexcept { return _filter; }
virtual void done() = 0;
};
}
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