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82df8a9905
We decided to extend `cql_statement` hierarchy with `strongly_consistent_modification_statement` and `strongly_consistent_select_statement`. Statements operating on system.broadcast_kv_store will be compiled to these new subclasses if BROADCAST_TABLES flag is enabled. If the query is executed on a shard other than 0 it's bounced to that shard.
64 lines
2.1 KiB
C++
64 lines
2.1 KiB
C++
/*
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* Copyright (C) 2015-present ScyllaDB
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*
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* Modified by ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: (AGPL-3.0-or-later and Apache-2.0)
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*/
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#pragma once
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#include "cql3/statements/raw/cf_statement.hh"
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#include "cql3/column_identifier.hh"
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#include "cql3/column_condition.hh"
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#include "cql3/attributes.hh"
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#include "cql3/cql_statement.hh"
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#include <seastar/core/shared_ptr.hh>
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#include <memory>
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namespace cql3 {
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namespace statements {
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class modification_statement;
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namespace raw {
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class modification_statement : public cf_statement {
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public:
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using conditions_vector = std::vector<std::pair<::shared_ptr<column_identifier::raw>, lw_shared_ptr<column_condition::raw>>>;
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protected:
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const std::unique_ptr<attributes::raw> _attrs;
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const std::vector<std::pair<::shared_ptr<column_identifier::raw>, lw_shared_ptr<column_condition::raw>>> _conditions;
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private:
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const bool _if_not_exists;
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const bool _if_exists;
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protected:
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modification_statement(cf_name name, std::unique_ptr<attributes::raw> attrs, conditions_vector conditions, bool if_not_exists, bool if_exists);
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public:
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virtual std::unique_ptr<prepared_statement> prepare(data_dictionary::database db, cql_stats& stats) override;
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::shared_ptr<cql_statement_opt_metadata> prepare_statement(data_dictionary::database db, prepare_context& ctx, cql_stats& stats);
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::shared_ptr<cql3::statements::modification_statement> prepare(data_dictionary::database db, prepare_context& ctx, cql_stats& stats) const;
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protected:
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virtual ::shared_ptr<cql3::statements::modification_statement> prepare_internal(data_dictionary::database db, schema_ptr schema,
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prepare_context& ctx, std::unique_ptr<attributes> attrs, cql_stats& stats) const = 0;
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// Helper function used by child classes to prepare conditions for a prepared statement.
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// Must be called before processing WHERE clause, because to perform sanity checks there
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// we need to know what kinds of conditions (static, regular) the statement has.
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void prepare_conditions(data_dictionary::database db, const schema& schema, prepare_context& ctx,
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cql3::statements::modification_statement& stmt) const;
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};
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}
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}
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}
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