nl_tokens: Creates a new instance of <code > ControlConnection< / code > .
pl_tokens: function ControlConnection ( options , profileManager , context ) { this . protocolVersion = null ; this . hosts = new HostMap ( ) ; this . setMaxListeners ( 0 ) ; Object . defineProperty ( this , "options" , { value : options , enumerable : false , writable : false } ) ; /**
     * Cluster metadata that is going to be shared between the Client and ControlConnection
     */ this . metadata = new Metadata ( this . options , this ) ; this . addressTranslator = this . options . policies . addressResolution ; this . reconnectionPolicy = this . options . policies . reconnection ; this . reconnectionSchedule = this . reconnectionPolicy . newSchedule ( ) ; this . initialized = false ; this . isShuttingDown = false ; /**
     * Host used by the control connection
     * @type {Host|null}
     */ this . host = null ; /**
     * Connection used to retrieve metadata and subscribed to events
     * @type {Connection|null}
     */ this . connection = null ; /**
     * Reference to the encoder of the last valid connection
     * @type {Encoder|null}
     */ this . encoder = null ; this . debouncer = new EventDebouncer ( <mask> . refreshSchemaDelay , this . log . bind ( this ) ) ; this . profileManager = profileManager ; /** Timeout used for delayed handling of topology changes */ this . topologyChangeTimeout = null ; /** Timeout used for delayed handling of node status changes */ this . nodeStatusChangeTimeout = null ; this . reconnectionTimeout = null ; this . hostIterator = null ; this . triedHosts = null ; this . _resolvedContactPoints = new Map ( ) ; this . _contactPoints = new Set ( ) ; if ( context && context . borrowHostConnection ) { this . borrowHostConnection = context . borrowHostConnection ; } if ( context && context . createConnection ) { this . createConnection = context . createConnection ; } }