Package io.camunda.zeebe.engine.state.migration

Class ProcessMessageSubscriptionSentTimeMigration

java.lang.Object

io.camunda.zeebe.engine.state.migration.ProcessMessageSubscriptionSentTimeMigration

All Implemented Interfaces:

MigrationTask

public class ProcessMessageSubscriptionSentTimeMigration
extends Object
implements MigrationTask

Migrates pending process message subscriptions by adding them to PendingProcessMessageSubscriptionState and removing them from ZbColumnFamilies.PROCESS_SUBSCRIPTION_BY_SENT_TIME.

Constructor Summary

Constructors

Constructor	Description
ProcessMessageSubscriptionSentTimeMigration()

Method Summary

Modifier and Type	Method	Description
String	getIdentifier()	Returns identifier for the migration task.
boolean	needsToRun(ProcessingState processingState)	Returns whether the migration needs to run.
void	runMigration(MutableProcessingState processingState)	Implementations of this method perform the actual migration

Methods inherited from class java.lang.Object

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

Constructor Details

ProcessMessageSubscriptionSentTimeMigration

public ProcessMessageSubscriptionSentTimeMigration()

Method Details

getIdentifier

public String getIdentifier()

Description copied from interface: MigrationTask

Returns identifier for the migration task.

The identifier is used for logging.

In the future, it might also be used to store the migrations that were run in persistent state

Specified by:

getIdentifier in interface MigrationTask

Returns:

identifier for the migration task

needsToRun

public boolean needsToRun(ProcessingState processingState)

Description copied from interface: MigrationTask

Returns whether the migration needs to run. By default this returns true. We keep track of whether migrations have already run, and we use this to determine if they need to run. There are migrations from before this mechanism was implemented. Because of this we need to make sure they still have the opportunity to decide if they need to run in the old way.

Specified by:

needsToRun in interface MigrationTask

Parameters:

processingState - the immutable Zeebe state

Returns:

whether the migration needs to run

runMigration

public void runMigration(MutableProcessingState processingState)

Description copied from interface: MigrationTask

Implementations of this method perform the actual migration

Specified by:

runMigration in interface MigrationTask

Parameters:

processingState - the mutable Zeebe state