ClusterAwareDecorator Class Reference

Cluster (GR or AR)-aware decorator for MySQL Sessions. More...

Public Member Functions
	ClusterAwareDecorator (ClusterMetadata &metadata, const std::string &cluster_initial_username, const std::string &cluster_initial_password, const std::string &cluster_initial_hostname, unsigned long cluster_initial_port, const std::string &cluster_initial_socket, unsigned long connection_timeout, std::set< MySQLErrorc > failure_codes={MySQLErrorc::kSuperReadOnly, MySQLErrorc::kLostConnection})
template<class R >
R	failover_on_failure (std::function< R()> wrapped_func)
	Cluster (GR or AR) aware failover. More...
virtual	~ClusterAwareDecorator ()=default

Protected Member Functions
void	connect (MySQLSession &session, const std::string &host, const unsigned port)

Protected Attributes
ClusterMetadata &	metadata_
const std::string &	cluster_initial_username_
const std::string &	cluster_initial_password_
const std::string &	cluster_initial_hostname_
unsigned long	cluster_initial_port_
const std::string &	cluster_initial_socket_
unsigned long	connection_timeout_
std::set< MySQLErrorc >	failure_codes_

Detailed Description

Cluster (GR or AR)-aware decorator for MySQL Sessions.

Constructor & Destructor Documentation

ClusterAwareDecorator()

ClusterAwareDecorator::ClusterAwareDecorator ( ClusterMetadata &  metadata, const std::string &  cluster_initial_username, const std::string &  cluster_initial_password, const std::string &  cluster_initial_hostname, unsigned long  cluster_initial_port, const std::string &  cluster_initial_socket, unsigned long  connection_timeout, std::set< MySQLErrorc >  failure_codes = {MySQLErrorc::kSuperReadOnly, MySQLErrorc::kLostConnection}  )

inline

~ClusterAwareDecorator()

virtual ClusterAwareDecorator::~ClusterAwareDecorator ( )

virtualdefault

Member Function Documentation

connect()

void ClusterAwareDecorator::connect ( MySQLSession &  session, const std::string &  host, const unsigned  port  )

protected

failover_on_failure()

template<class R >

R ClusterAwareDecorator::failover_on_failure

(

std::function< R()>

wrapped_func

)

Cluster (GR or AR) aware failover.

Parameters

wrapped_func

function will be called

assumes:

• actively connected mysql_ session
• all nodes in the group have the same user/pass combination
• wrapped_func throws MySQLSession::Error with .code in .failure_codes

Member Data Documentation

cluster_initial_hostname_

const std::string& ClusterAwareDecorator::cluster_initial_hostname_

protected

cluster_initial_password_

const std::string& ClusterAwareDecorator::cluster_initial_password_

protected

cluster_initial_port_

unsigned long ClusterAwareDecorator::cluster_initial_port_

protected

cluster_initial_socket_

const std::string& ClusterAwareDecorator::cluster_initial_socket_

protected

cluster_initial_username_

const std::string& ClusterAwareDecorator::cluster_initial_username_

protected

connection_timeout_

unsigned long ClusterAwareDecorator::connection_timeout_

protected

failure_codes_

std::set<MySQLErrorc> ClusterAwareDecorator::failure_codes_

protected

metadata_

ClusterMetadata& ClusterAwareDecorator::metadata_

protected

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

• router/src/router/src/config_generator.cc