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d0fef3e31b
Pass a reference to storage_proxy and apply mutations in legacy_schema_tables::merge_schema(). Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>
108 lines
3.1 KiB
C++
108 lines
3.1 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 2014 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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namespace transport {
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namespace messages {
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class result_message;
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}
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}
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#include "transport/event.hh"
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#include "cql3/statements/cf_statement.hh"
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#include "cql3/cql_statement.hh"
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#include "core/shared_ptr.hh"
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#include <experimental/optional>
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namespace cql3 {
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namespace statements {
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namespace messages = transport::messages;
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/**
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* Abstract class for statements that alter the schema.
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*/
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class schema_altering_statement : public cf_statement, public cql_statement, public ::enable_shared_from_this<schema_altering_statement> {
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private:
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const bool _is_column_family_level;
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protected:
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schema_altering_statement()
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: cf_statement{::shared_ptr<cf_name>{}}
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, _is_column_family_level{false}
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{ }
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schema_altering_statement(::shared_ptr<cf_name> name)
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: cf_statement{std::move(name)}
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, _is_column_family_level{true}
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{ }
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virtual bool uses_function(const sstring& ks_name, const sstring& function_name) const override {
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return cf_statement::uses_function(ks_name, function_name);
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}
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virtual uint32_t get_bound_terms() override {
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return 0;
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}
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virtual void prepare_keyspace(service::client_state& state) override {
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if (_is_column_family_level) {
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cf_statement::prepare_keyspace(state);
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}
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}
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virtual ::shared_ptr<prepared> prepare(database& db) override {
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return ::make_shared<parsed_statement::prepared>(this->shared_from_this());
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}
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virtual shared_ptr<transport::event::schema_change> change_event() = 0;
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/**
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* Announces the migration to other nodes in the cluster.
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* @return true if the execution of this statement resulted in a schema change, false otherwise (when IF NOT EXISTS
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* is used, for example)
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* @throws RequestValidationException
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*/
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virtual future<bool> announce_migration(service::storage_proxy& proxy, bool is_local_only) = 0;
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virtual future<::shared_ptr<messages::result_message>>
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execute(service::storage_proxy& proxy, service::query_state& state, const query_options& options) override;
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virtual future<::shared_ptr<messages::result_message>>
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execute_internal(database& db, service::query_state& state, const query_options& options) override;
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};
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}
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}
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