Package io.camunda.zeebe.engine.state.message

Class DbMessageSubscriptionState

java.lang.Object

io.camunda.zeebe.engine.state.message.DbMessageSubscriptionState

All Implemented Interfaces:

MessageSubscriptionState, PendingMessageSubscriptionState, MutableMessageSubscriptionState, StreamProcessorLifecycleAware

public final class DbMessageSubscriptionState
extends Object
implements MutableMessageSubscriptionState, PendingMessageSubscriptionState, StreamProcessorLifecycleAware

Nested Class Summary

Nested classes/interfaces inherited from interface io.camunda.zeebe.engine.state.immutable.MessageSubscriptionState

MessageSubscriptionState.MessageSubscriptionVisitor

Constructor Summary

Constructors

Constructor	Description
DbMessageSubscriptionState(ZeebeDb<ZbColumnFamilies> zeebeDb, TransactionContext transactionContext, TransientPendingSubscriptionState transientState, InstantSource clock)

Method Summary

Modifier and Type	Method	Description
boolean	existSubscriptionForElementInstance(long elementInstanceKey, org.agrona.DirectBuffer messageName)
MessageSubscription	get(long elementInstanceKey, org.agrona.DirectBuffer messageName)
void	onRecovered(ReadonlyStreamProcessorContext context)
void	onSent(long elementInstanceKey, String messageName, String tenantId, long timestampMs)	Should be called when a pending subscription is sent out.
void	put(long key, MessageSubscriptionRecord record)
boolean	remove(long elementInstanceKey, org.agrona.DirectBuffer messageName)
void	remove(MessageSubscription subscription)
void	update(long key, MessageSubscriptionRecord record)
void	updateToCorrelatedState(MessageSubscription subscription)
void	updateToCorrelatingState(MessageSubscriptionRecord record)
void	visitPending(long deadline, MessageSubscriptionState.MessageSubscriptionVisitor visitor)	Visits all pending message subscriptions where a command hasn't been sent out since a given deadline.
void	visitSubscriptions(String tenantId, org.agrona.DirectBuffer messageName, org.agrona.DirectBuffer correlationKey, MessageSubscriptionState.MessageSubscriptionVisitor visitor)	Visits the message subscriptions that match a given tenant, message name, and correlation key.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface io.camunda.zeebe.engine.state.immutable.PendingMessageSubscriptionState

onSent

Methods inherited from interface io.camunda.zeebe.stream.api.StreamProcessorLifecycleAware

onClose, onFailed, onPaused, onResumed

Constructor Details

DbMessageSubscriptionState

public DbMessageSubscriptionState(ZeebeDb<ZbColumnFamilies> zeebeDb,
 TransactionContext transactionContext,
 TransientPendingSubscriptionState transientState,
 InstantSource clock)

Method Details

onRecovered

public void onRecovered(ReadonlyStreamProcessorContext context)

Specified by:

onRecovered in interface StreamProcessorLifecycleAware

get

public MessageSubscription get(long elementInstanceKey,
 org.agrona.DirectBuffer messageName)

Specified by:

get in interface MessageSubscriptionState

visitSubscriptions

public void visitSubscriptions(String tenantId,
 org.agrona.DirectBuffer messageName,
 org.agrona.DirectBuffer correlationKey,
 MessageSubscriptionState.MessageSubscriptionVisitor visitor)

Description copied from interface: MessageSubscriptionState

Visits the message subscriptions that match a given tenant, message name, and correlation key.

Specified by:

visitSubscriptions in interface MessageSubscriptionState

existSubscriptionForElementInstance

public boolean existSubscriptionForElementInstance(long elementInstanceKey,
 org.agrona.DirectBuffer messageName)

Specified by:

existSubscriptionForElementInstance in interface MessageSubscriptionState

put

public void put(long key,
 MessageSubscriptionRecord record)

Specified by:

put in interface MutableMessageSubscriptionState

updateToCorrelatingState

public void updateToCorrelatingState(MessageSubscriptionRecord record)

Specified by:

updateToCorrelatingState in interface MutableMessageSubscriptionState

updateToCorrelatedState

public void updateToCorrelatedState(MessageSubscription subscription)

Specified by:

updateToCorrelatedState in interface MutableMessageSubscriptionState

remove

public boolean remove(long elementInstanceKey,
 org.agrona.DirectBuffer messageName)

Specified by:

remove in interface MutableMessageSubscriptionState

remove

public void remove(MessageSubscription subscription)

Specified by:

remove in interface MutableMessageSubscriptionState

update

public void update(long key,
 MessageSubscriptionRecord record)

Specified by:

update in interface MutableMessageSubscriptionState

visitPending

public void visitPending(long deadline,
 MessageSubscriptionState.MessageSubscriptionVisitor visitor)

Description copied from interface: PendingMessageSubscriptionState

Visits all pending 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.

Specified by:

visitPending in interface PendingMessageSubscriptionState

onSent

public void onSent(long elementInstanceKey,
 String messageName,
 String tenantId,
 long timestampMs)

Description copied from interface: PendingMessageSubscriptionState

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 PendingMessageSubscriptionState.visitPending(long, MessageSubscriptionVisitor).

Specified by:

onSent in interface PendingMessageSubscriptionState