data::cassandra::Schema< SettingsProviderType > Class Template Reference

Manages the DB schema and provides access to prepared statements. More...

#include <Schema.hpp>

Collaboration diagram for data::cassandra::Schema< SettingsProviderType >:

Classes
class	Statements
	Prepared statements holder. More...

Public Member Functions
	Schema (SettingsProviderType const &settingsProvider)
	Shared Schema's between all Schema classes (Cassandra and Keyspace)
virtual void	prepareStatements (Handle const &handle)=0
	Recreates the prepared statements.

Public Attributes
std::string	createKeyspace
std::vector< Statement >	createSchema

Protected Attributes
util::Logger	log_ {"Backend"}
std::reference_wrapper< SettingsProviderType const >	settingsProvider_

Detailed Description

template<SomeSettingsProvider SettingsProviderType>
class data::cassandra::Schema< SettingsProviderType >

Manages the DB schema and provides access to prepared statements.

Constructor & Destructor Documentation

Schema()

template<SomeSettingsProvider SettingsProviderType>

data::cassandra::Schema< SettingsProviderType >::Schema ( SettingsProviderType const & settingsProvider )

inlineexplicit

Shared Schema's between all Schema classes (Cassandra and Keyspace)

Parameters

settingsProvider

The settings provider

Member Function Documentation

prepareStatements()

template<SomeSettingsProvider SettingsProviderType>

virtual void data::cassandra::Schema< SettingsProviderType >::prepareStatements ( Handle const & handle )

pure virtual

Recreates the prepared statements.

Parameters

handle

The handle to the DB

Implemented in data::cassandra::CassandraSchema< SettingsProviderType >, and data::cassandra::KeyspaceSchema< SettingsProviderType >.

Member Data Documentation

createKeyspace

template<SomeSettingsProvider SettingsProviderType>

std::string data::cassandra::Schema< SettingsProviderType >::createKeyspace

Initial value:

= [this]() {
        return fmt::format(
            R"(
            CREATE KEYSPACE IF NOT EXISTS {}
              WITH replication = {{
                     'class': 'SimpleStrategy',
                     'replication_factor': '{}'
                   }}
               AND durable_writes = True
            )",
            settingsProvider_.get().getKeyspace(),
            settingsProvider_.get().getReplicationFactor()
        );
    }()

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The documentation for this class was generated from the following file:

• /__w/clio/clio/src/data/cassandra/Schema.hpp