Package io.camunda.zeebe.engine.state.immutable

Interface PendingProcessMessageSubscriptionState

All Known Implementing Classes:

DbProcessMessageSubscriptionState

public interface PendingProcessMessageSubscriptionState

Captures the transient (in-memory) state for a ProcessMessageSubscription. This is to track the state of the communication between the process instance partition and the message partition during opening or closing of a process message subscription. This state is not persisted to disk and needs to be recovered after restart

Method Summary

Modifier and Type	Method	Description
void	onSent(ProcessMessageSubscriptionRecord record, long timestampMs)	Should be called when a pending subscription is sent out.
void	visitPending(long deadline, ProcessMessageSubscriptionState.ProcessMessageSubscriptionVisitor visitor)	Visits all pending process message subscriptions where a command hasn't been sent out since a given deadline.

Method Details

visitPending

void visitPending(long deadline,
 ProcessMessageSubscriptionState.ProcessMessageSubscriptionVisitor visitor)

Visits all pending process message subscriptions where a command hasn't been sent out since a given deadline. The visitor is called for each subscription, from the oldest to the newest.

onSent

void onSent(ProcessMessageSubscriptionRecord record,
 long timestampMs)

Should be called when a pending subscription is sent out. This is used to keep track of the last time a command was sent out for a subscription. Freshly sent-out subscriptions are not visited by visitPending(long, ProcessMessageSubscriptionVisitor).