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// Copyright 2019 Oath Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include "i_enum_store.h"
#include <vespa/searchcommon/attribute/iattributevector.h>
#include <vespa/vespalib/datastore/entry_comparator_wrapper.h>
#include <vespa/vespalib/datastore/unique_store_dictionary.h>
namespace search {
class BufferWriter;
using EnumTreeTraits = btree::BTreeTraits<16, 16, 10, true>;
using EnumTree = btree::BTree<IEnumStore::Index, btree::BTreeNoLeafData,
btree::NoAggregated,
const datastore::EntryComparatorWrapper,
EnumTreeTraits>;
using EnumPostingTree = btree::BTree<IEnumStore::Index, uint32_t,
btree::NoAggregated,
const datastore::EntryComparatorWrapper,
EnumTreeTraits>;
/**
* Interface for the dictionary used by an enum store.
*/
class IEnumStoreDictionary : public datastore::IUniqueStoreDictionary {
public:
using EnumVector = IEnumStore::EnumVector;
using Index = IEnumStore::Index;
using IndexSet = IEnumStore::IndexSet;
using IndexVector = IEnumStore::IndexVector;
using generation_t = vespalib::GenerationHandler::generation_t;
public:
virtual ~IEnumStoreDictionary() = default;
virtual uint32_t getNumUniques() const = 0;
virtual void fixupRefCounts(const EnumVector& hist) = 0;
virtual void freeUnusedEnums(const datastore::EntryComparator& cmp) = 0;
virtual void freeUnusedEnums(const IndexSet& toRemove,
const datastore::EntryComparator& cmp) = 0;
virtual bool findIndex(const datastore::EntryComparator& cmp, Index& idx) const = 0;
virtual bool findFrozenIndex(const datastore::EntryComparator& cmp, Index& idx) const = 0;
virtual std::vector<attribute::IAttributeVector::EnumHandle>
findMatchingEnums(const datastore::EntryComparator& cmp) const = 0;
virtual void onReset() = 0;
virtual EnumPostingTree& getPostingDictionary() = 0;
virtual const EnumPostingTree& getPostingDictionary() const = 0;
virtual bool hasData() const = 0;
};
}
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