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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/searchcorespi/index/iindexmanager.h>
#include <vespa/searchlib/query/base.h>
#include <vespa/searchlib/common/serialnum.h>
namespace proton {
/**
* Interface for an index writer that handles writes in form of put and remove
* to an underlying memory index.
**/
class IIndexWriter {
public:
using UP = std::unique_ptr<IIndexWriter>;
using SP = std::shared_ptr<IIndexWriter>;
using IIndexManager = searchcorespi::IIndexManager;
using OnWriteDoneType = IIndexManager::OnWriteDoneType;
using LidVector = std::vector<search::DocumentIdT>;
virtual ~IIndexWriter() = default;
virtual const std::shared_ptr<IIndexManager> &getIndexManager() const = 0;
// feed interface
virtual void put(search::SerialNum serialNum, const document::Document &doc, const search::DocumentIdT lid, OnWriteDoneType on_write_done) = 0;
void remove(search::SerialNum serialNum, search::DocumentIdT lid) {
LidVector lids;
lids.push_back(lid);
removeDocs(serialNum, std::move(lids));
}
virtual void removeDocs(search::SerialNum serialNum, LidVector lids) = 0;
virtual void commit(search::SerialNum serialNum, OnWriteDoneType onWriteDone) = 0;
virtual void heartBeat(search::SerialNum serialNum) = 0;
virtual void compactLidSpace(search::SerialNum serialNum, const search::DocumentIdT lid) = 0;
};
} // namespace proton
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