3a0de14aa8
Ensure that read-side accessors are const. This is important in preparation for multiple memtables (and later, sstables) since a read-side mutation_partition may be a temporary object coming from multiple memtables (and sstables) while a write-side mutation_partition is guaranteed to belong to a single memtable (and thus, not be temporary). Since writers will want non-const mutation_partitions to write to, they won't be able to use the read-side accessors by accident.
42 lines
2.0 KiB
C++
42 lines
2.0 KiB
C++
/*
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* Copyright (C) 2014 Cloudius Systems, Ltd.
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*/
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#pragma once
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#include <iostream>
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#include "mutation_partition.hh"
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#include "keys.hh"
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#include "schema.hh"
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#include "dht/i_partitioner.hh"
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class mutation final {
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private:
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schema_ptr _schema;
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const dht::decorated_key _dk;
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mutation_partition _p;
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public:
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mutation(dht::decorated_key key, schema_ptr schema);
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mutation(partition_key key, schema_ptr schema);
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mutation(mutation&&) = default;
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mutation(const mutation&) = default;
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void set_static_cell(const column_definition& def, atomic_cell_or_collection value);
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void set_clustered_cell(const exploded_clustering_prefix& prefix, const column_definition& def, atomic_cell_or_collection value);
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void set_clustered_cell(const clustering_key& key, const bytes& name, const boost::any& value, api::timestamp_type timestamp, ttl_opt ttl = {});
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void set_clustered_cell(const clustering_key& key, const column_definition& def, atomic_cell_or_collection value);
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void set_cell(const exploded_clustering_prefix& prefix, const bytes& name, const boost::any& value, api::timestamp_type timestamp, ttl_opt ttl = {});
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void set_cell(const exploded_clustering_prefix& prefix, const column_definition& def, atomic_cell_or_collection value);
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std::experimental::optional<atomic_cell_or_collection> get_cell(const clustering_key& rkey, const column_definition& def) const;
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const partition_key& key() const { return _dk._key; };
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const dht::decorated_key& decorated_key() const { return _dk; };
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const dht::token token() const { return _dk._token; }
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const schema_ptr& schema() const { return _schema; }
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const mutation_partition& partition() const { return _p; }
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mutation_partition& partition() { return _p; }
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const utils::UUID& column_family_id() const { return _schema->id(); }
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private:
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static void update_column(row& row, const column_definition& def, atomic_cell_or_collection&& value);
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friend std::ostream& operator<<(std::ostream& os, const mutation& m);
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};
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