70381a6da5
s/database/distributed<database>/ everywhere. Use simple distribution rules: writes are broadcast, reads are local. This causes tremendous data duplication, but will change soon.
66 lines
2.3 KiB
C++
66 lines
2.3 KiB
C++
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* Copyright 2015 Cloudius Systems
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*
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* Modified by Cloudius Systems
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*/
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#pragma once
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#include "database.hh"
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#include "core/distributed.hh"
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#include "db/consistency_level.hh"
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namespace service {
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class storage_proxy /*implements StorageProxyMBean*/ {
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private:
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distributed<database>& _db;
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public:
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storage_proxy(distributed<database>& db) : _db(db) {}
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/**
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* Use this method to have these Mutations applied
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* across all replicas. This method will take care
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* of the possibility of a replica being down and hint
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* the data across to some other replica.
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*
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* @param mutations the mutations to be applied across the replicas
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* @param consistency_level the consistency level for the operation
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*/
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future<> mutate(std::vector<mutation> mutations, db::consistency_level cl);
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future<> mutate_with_triggers(std::vector<mutation> mutations, db::consistency_level cl,
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bool should_mutate_atomically);
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/**
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* See mutate. Adds additional steps before and after writing a batch.
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* Before writing the batch (but after doing availability check against the FD for the row replicas):
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* write the entire batch to a batchlog elsewhere in the cluster.
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* After: remove the batchlog entry (after writing hints for the batch rows, if necessary).
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*
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* @param mutations the Mutations to be applied across the replicas
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* @param consistency_level the consistency level for the operation
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*/
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future<> mutate_atomically(std::vector<mutation> mutations, db::consistency_level cl);
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};
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}
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