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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/vespalib/util/generationholder.h>
#include <vespa/vespalib/util/arrayref.h>
#include <set>
namespace search {
class CondensedBitVector
{
public:
using UP = std::unique_ptr<CondensedBitVector>;
using SP = std::shared_ptr<CondensedBitVector>;
using Key = uint32_t;
using KeySet = std::set<Key>;
using CountVector = vespalib::ArrayRef<uint8_t>;
virtual ~CondensedBitVector();
virtual void initializeCountVector(const KeySet & keys, CountVector & v) const = 0;
virtual void addCountVector(const KeySet & keys, CountVector & v) const = 0;
virtual void set(Key key, uint32_t index, bool v) = 0;
virtual bool get(Key key, uint32_t index) const = 0;
virtual void clearIndex(uint32_t index) = 0;
virtual size_t getKeyCapacity() const = 0;
/*
* getCapacity() should be called from writer only.
* Const type qualifier removed to prevent call from readers.
*/
virtual size_t getCapacity() = 0;
/*
* getSize() should be called from writer only.
* Const type qualifier removed to prevent call from readers.
*/
virtual size_t getSize() = 0;
virtual void adjustDocIdLimit(uint32_t docId) = 0;
bool hasKey(Key key) const { return key < getKeyCapacity(); }
void addKey(Key key) const;
static CondensedBitVector::UP create(size_t size, vespalib::GenerationHolder &genHolder);
};
}
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