ff55b76562
Use seastar::checked_ptr<weak_ptr<pepared_statement>> instead of shared_ptr for passing prepared statements around. This allows an easy tracking and handling of statements invalidation. This implementation will throw an exception every time an invalidated statement reference is dereferenced. Signed-off-by: Vlad Zolotarov <vladz@scylladb.com>
80 lines
2.8 KiB
C++
80 lines
2.8 KiB
C++
/*
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* This file is part of Scylla.
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* Copyright (C) 2016 ScyllaDB
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*
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*
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* Scylla is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Scylla is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Scylla. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include "cql3/statements/schema_altering_statement.hh"
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#include "cql3/statements/cf_prop_defs.hh"
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#include "cql3/statements/cf_properties.hh"
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#include "cql3/cql3_type.hh"
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#include "cql3/selection/raw_selector.hh"
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#include "cql3/relation.hh"
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#include "cql3/cf_name.hh"
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#include "service/migration_manager.hh"
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#include "schema.hh"
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#include "core/shared_ptr.hh"
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#include <utility>
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#include <vector>
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#include <experimental/optional>
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namespace cql3 {
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namespace statements {
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/** A <code>CREATE MATERIALIZED VIEW</code> parsed from a CQL query statement. */
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class create_view_statement : public schema_altering_statement {
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private:
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::shared_ptr<cf_name> _base_name;
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std::vector<::shared_ptr<selection::raw_selector>> _select_clause;
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std::vector<::shared_ptr<relation>> _where_clause;
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std::vector<::shared_ptr<cql3::column_identifier::raw>> _partition_keys;
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std::vector<::shared_ptr<cql3::column_identifier::raw>> _clustering_keys;
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cf_properties _properties;
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bool _if_not_exists;
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public:
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create_view_statement(
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::shared_ptr<cf_name> view_name,
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::shared_ptr<cf_name> base_name,
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std::vector<::shared_ptr<selection::raw_selector>> select_clause,
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std::vector<::shared_ptr<relation>> where_clause,
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std::vector<::shared_ptr<cql3::column_identifier::raw>> partition_keys,
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std::vector<::shared_ptr<cql3::column_identifier::raw>> clustering_keys,
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bool if_not_exists);
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auto& properties() {
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return _properties;
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}
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// Functions we need to override to subclass schema_altering_statement
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virtual future<> check_access(const service::client_state& state) override;
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virtual void validate(distributed<service::storage_proxy>&, const service::client_state& state) override;
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virtual future<bool> announce_migration(distributed<service::storage_proxy>& proxy, bool is_local_only) override;
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virtual shared_ptr<transport::event::schema_change> change_event() override;
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virtual std::unique_ptr<prepared> prepare(database& db, cql_stats& stats) override;
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// FIXME: continue here. See create_table_statement.hh and CreateViewStatement.java
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};
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}
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}
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