Files
scylladb/cql3/statements/use_statement.cc
Eliran Sinvani bf50dbd35b cql3 statements: Change dependency test API to express better it's
purpose

Cql statements used to have two API functions, depends_on_keyspace and
depends_on_column_family. The former, took as a parameter only a table
name, which makes no sense. There could be multiple tables with the same
name each in a different keyspace and it doesn't make sense to
generalize the test - i.e to ask "Does a statement depend on any table
named XXX?"
In this change we unify the two calls to one - depends on that takes a
keyspace name and optionally also a table name, that way every logical
dependency tests that makes sense is supported by a single API call.
2022-02-27 11:48:03 +02:00

74 lines
1.7 KiB
C++

/*
*/
/*
* Copyright (C) 2015-present ScyllaDB
*
* Modified by ScyllaDB
*/
/*
* SPDX-License-Identifier: (AGPL-3.0-or-later and Apache-2.0)
*/
#include "cql3/statements/use_statement.hh"
#include "cql3/statements/raw/use_statement.hh"
#include "cql3/query_processor.hh"
#include "transport/messages/result_message.hh"
#include "service/query_state.hh"
namespace cql3 {
namespace statements {
use_statement::use_statement(sstring keyspace)
: cql_statement_no_metadata(&timeout_config::other_timeout)
, _keyspace(keyspace)
{
}
uint32_t use_statement::get_bound_terms() const
{
return 0;
}
namespace raw {
use_statement::use_statement(sstring keyspace)
: _keyspace(keyspace)
{
}
std::unique_ptr<prepared_statement> use_statement::prepare(data_dictionary::database db, cql_stats& stats)
{
return std::make_unique<prepared_statement>(::make_shared<cql3::statements::use_statement>(_keyspace));
}
}
bool use_statement::depends_on(std::string_view ks_name, std::optional<std::string_view> cf_name) const
{
return false;
}
future<> use_statement::check_access(query_processor& qp, const service::client_state& state) const
{
state.validate_login();
return make_ready_future<>();
}
void use_statement::validate(query_processor&, const service::client_state& state) const
{
}
future<::shared_ptr<cql_transport::messages::result_message>>
use_statement::execute(query_processor& qp, service::query_state& state, const query_options& options) const {
state.get_client_state().set_keyspace(qp.db().real_database(), _keyspace);
auto result =::make_shared<cql_transport::messages::result_message::set_keyspace>(_keyspace);
return make_ready_future<::shared_ptr<cql_transport::messages::result_message>>(result);
}
}
}