DistributedPubSubMediator
Defined in: src/cluster/pubsub/DistributedPubSubMediator.ts:55
Cluster-wide publish/subscribe bus. Every node hosts one mediator which keeps a local Map<topic, subscribers> and gossip-replicates the topic→node set so Publish can reach every subscriber with at most one remote hop.
Simple delta model: each mediator periodically gossips its local topic set to one random peer. Peers merge into their view.
Extends
Section titled “Extends”Actor<Subscribe|Unsubscribe|UnsubscribeAll|Publish|GetTopics|PubSubPublishMsg>
Constructors
Section titled “Constructors”Constructor
Section titled “Constructor”new DistributedPubSubMediator(
settings):DistributedPubSubMediator
Defined in: src/cluster/pubsub/DistributedPubSubMediator.ts:64
Parameters
Section titled “Parameters”settings
Section titled “settings”Returns
Section titled “Returns”DistributedPubSubMediator
Overrides
Section titled “Overrides”Properties
Section titled “Properties”settings
Section titled “settings”
readonlysettings:DistributedPubSubSettings
Defined in: src/cluster/pubsub/DistributedPubSubMediator.ts:64
Methods
Section titled “Methods”onReceive()
Section titled “onReceive()”onReceive(
msg):void
Defined in: src/cluster/pubsub/DistributedPubSubMediator.ts:90
Main message handler. Receives each envelope dequeued from the mailbox. A thrown error (sync or async) is caught by the supervisor.
Parameters
Section titled “Parameters”Subscribe | Unsubscribe | UnsubscribeAll | GetTopics | PubSubPublishMsg | Publish<unknown>
Returns
Section titled “Returns”void
Overrides
Section titled “Overrides”postRestart()
Section titled “postRestart()”postRestart(
_reason):void|Promise<void>
Defined in: src/Actor.ts:55
Called on the fresh instance after a restart. Default: call preStart().
Parameters
Section titled “Parameters”_reason
Section titled “_reason”Error
Returns
Section titled “Returns”void | Promise<void>
Inherited from
Section titled “Inherited from”postStop()
Section titled “postStop()”postStop():
void
Defined in: src/cluster/pubsub/DistributedPubSubMediator.ts:84
Called after the actor has been terminated. Children are already stopped.
Returns
Section titled “Returns”void
Overrides
Section titled “Overrides”preRestart()
Section titled “preRestart()”preRestart(
_reason,_message?):void|Promise<void>
Defined in: src/Actor.ts:50
Called before a restart, on the instance about to be thrown away. The default stops children and then calls postStop().
Parameters
Section titled “Parameters”_reason
Section titled “_reason”Error
_message?
Section titled “_message?”Subscribe | Unsubscribe | UnsubscribeAll | GetTopics | PubSubPublishMsg | Publish<unknown>
Returns
Section titled “Returns”void | Promise<void>
Inherited from
Section titled “Inherited from”preStart()
Section titled “preStart()”preStart():
void
Defined in: src/cluster/pubsub/DistributedPubSubMediator.ts:66
Called after construction and before the first message is processed.
Returns
Section titled “Returns”void
Overrides
Section titled “Overrides”supervisorStrategy()
Section titled “supervisorStrategy()”supervisorStrategy():
SupervisorStrategy
Defined in: src/Actor.ts:63
Supervisor strategy for this actor’s children. Defaults to restart, up to 10 times per minute, then stop.