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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include <vespa/searchcommon/common/growstrategy.h>
#include <vespa/vespalib/datastore/compaction_strategy.h>
#include <iosfwd>
namespace proton {
/*
* Class representing allocation strategy for large data structures
* owned by a document sub db (e.g. attribute vectors, document meta store).
*/
class AllocStrategy
{
public:
using CompactionStrategy = vespalib::datastore::CompactionStrategy;
protected:
const search::GrowStrategy _grow_strategy;
const CompactionStrategy _compaction_strategy;
const uint32_t _amortize_count;
public:
AllocStrategy(const search::GrowStrategy& grow_strategy,
const CompactionStrategy& compaction_strategy,
uint32_t amortize_count);
AllocStrategy();
~AllocStrategy();
bool operator==(const AllocStrategy &rhs) const noexcept;
bool operator!=(const AllocStrategy &rhs) const noexcept {
return !operator==(rhs);
}
const search::GrowStrategy& get_grow_strategy() const noexcept { return _grow_strategy; }
const CompactionStrategy& get_compaction_strategy() const noexcept { return _compaction_strategy; }
uint32_t get_amortize_count() const noexcept { return _amortize_count; }
};
std::ostream& operator<<(std::ostream& os, const AllocStrategy&alloc_strategy);
}
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