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// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include <vespa/searchcore/proton/summaryengine/isearchhandler.h>
#include <vespa/vespalib/util/thread_bundle.h>
namespace searche {
namespace engine {
class SearchRequest;
class SearchReply;
}
}
namespace proton {
/**
* This interface describes a sync match operation handler. It is implemented by
* the DocumentDB class, and used by the MatchEngine class to delegate
* operations to the appropriate db.
*/
class IMatchHandler {
protected:
using SearchReply = search::engine::SearchReply;
using SearchRequest = search::engine::SearchRequest;
using ThreadBundle = vespalib::ThreadBundle;
IMatchHandler() = default;
public:
IMatchHandler(const IMatchHandler &) = delete;
IMatchHandler & operator = (const IMatchHandler &) = delete;
/**
* Convenience typedefs.
*/
typedef std::unique_ptr<IMatchHandler> UP;
typedef std::shared_ptr<IMatchHandler> SP;
virtual ~IMatchHandler() { }
/**
* @return Use the request and produce the matching result.
*/
virtual std::unique_ptr<SearchReply>
match(const ISearchHandler::SP &searchHandler, const SearchRequest &req, ThreadBundle &threadBundle) const = 0;
};
} // namespace proton
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