Files
scylladb/service/storage_proxy.hh
Pekka Enberg d3f9af7239 Make storage_proxy::query_local() return bare lw_shared_ptr<>
Don't return foreign_ptr<> which is not copyable so that we can use
map_difference for maps with result_set in them.

Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>
2015-05-12 13:18:56 +03:00

81 lines
2.9 KiB
C++

/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/*
* Copyright 2015 Cloudius Systems
*
* Modified by Cloudius Systems
*/
#pragma once
#include "database.hh"
#include "query-request.hh"
#include "query-result.hh"
#include "query-result-set.hh"
#include "core/distributed.hh"
#include "db/consistency_level.hh"
namespace service {
class storage_proxy /*implements StorageProxyMBean*/ {
private:
distributed<database>& _db;
public:
storage_proxy(distributed<database>& db) : _db(db) {}
distributed<database>& get_db() {
return _db;
}
future<> mutate_locally(const mutation& m);
future<> mutate_locally(const frozen_mutation& m);
future<> mutate_locally(std::vector<mutation> mutations);
/**
* Use this method to have these Mutations applied
* across all replicas. This method will take care
* of the possibility of a replica being down and hint
* the data across to some other replica.
*
* @param mutations the mutations to be applied across the replicas
* @param consistency_level the consistency level for the operation
*/
future<> mutate(std::vector<mutation> mutations, db::consistency_level cl);
future<> mutate_with_triggers(std::vector<mutation> mutations, db::consistency_level cl,
bool should_mutate_atomically);
/**
* See mutate. Adds additional steps before and after writing a batch.
* Before writing the batch (but after doing availability check against the FD for the row replicas):
* write the entire batch to a batchlog elsewhere in the cluster.
* After: remove the batchlog entry (after writing hints for the batch rows, if necessary).
*
* @param mutations the Mutations to be applied across the replicas
* @param consistency_level the consistency level for the operation
*/
future<> mutate_atomically(std::vector<mutation> mutations, db::consistency_level cl);
future<foreign_ptr<lw_shared_ptr<query::result>>> query(lw_shared_ptr<query::read_command> cmd, db::consistency_level cl);
future<lw_shared_ptr<query::result_set>> query_local(const sstring& ks_name, const sstring& cf_name, const dht::decorated_key& key);
};
}