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4efaccaff6
There's a cyclic dependency between cql3 and transport namespaces when we introduce prepared statements. The latter pulls parsed_statement::prepared from the former. Break the cycle by using a forward delcaration in cql_statement.hh. Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>
75 lines
2.6 KiB
C++
75 lines
2.6 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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#include "cql3/statements/schema_altering_statement.hh"
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#include "transport/messages/result_message.hh"
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namespace cql3 {
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namespace statements {
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future<::shared_ptr<messages::result_message>>
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schema_altering_statement::execute(service::storage_proxy& proxy, service::query_state& state, const query_options& options) {
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// If an IF [NOT] EXISTS clause was used, this may not result in an actual schema change. To avoid doing
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// extra work in the drivers to handle schema changes, we return an empty message in this case. (CASSANDRA-7600)
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bool did_change_schema = announce_migration(false);
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if (!did_change_schema) {
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auto result = ::make_shared<messages::result_message::void_message>();
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return make_ready_future<::shared_ptr<messages::result_message>>(result);
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}
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auto ce = change_event();
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::shared_ptr<messages::result_message> result;
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if (!ce) {
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result = ::make_shared<messages::result_message::void_message>();
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} else {
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result = ::make_shared<messages::result_message::schema_change>(ce);
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}
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return make_ready_future<::shared_ptr<messages::result_message>>(result);
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}
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future<::shared_ptr<messages::result_message>>
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schema_altering_statement::execute_internal(database& db, service::query_state& state, const query_options& options) {
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throw std::runtime_error("unsupported operation");
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#if 0
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try
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{
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boolean didChangeSchema = announceMigration(true);
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if (!didChangeSchema)
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return new ResultMessage.Void();
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Event.SchemaChange ce = changeEvent();
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return ce == null ? new ResultMessage.Void() : new ResultMessage.SchemaChange(ce);
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}
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catch (RequestValidationException e)
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{
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throw new RuntimeException(e);
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}
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#endif
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}
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}
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}
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