Files
scylla/locator/simple_strategy.hh
Benny Halevy 1e2741d2fe abstract_replication_strategy: recognized_options: return unordered_set
An unordered_set is more efficient and there is no need
to return an ordered set for this purpose.

This change facilitates a follow-up change of adding
topology::get_datacenters(), returning an unordered_set
of datacenter names.

Refs #11987

Signed-off-by: Benny Halevy <bhalevy@scylladb.com>

Closes #12003
2022-11-17 11:27:05 +02:00

35 lines
947 B
C++

/*
* Copyright (C) 2015-present ScyllaDB
*/
/*
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
#pragma once
#include "abstract_replication_strategy.hh"
#include <optional>
#include <set>
namespace locator {
class simple_strategy : public abstract_replication_strategy {
public:
simple_strategy(const replication_strategy_config_options& config_options);
virtual ~simple_strategy() {};
virtual size_t get_replication_factor(const token_metadata& tm) const override;
virtual void validate_options() const override;
virtual std::optional<std::unordered_set<sstring>> recognized_options(const topology&) const override;
virtual bool allow_remove_node_being_replaced_from_natural_endpoints() const override {
return true;
}
virtual future<endpoint_set> calculate_natural_endpoints(const token& search_token, const token_metadata& tm) const override;
private:
size_t _replication_factor = 1;
};
}