Package io.camunda.zeebe.engine.processing.message

Class MessageTimeToLiveChecker

java.lang.Object

io.camunda.zeebe.engine.processing.message.MessageTimeToLiveChecker

All Implemented Interfaces:

Task

public final class MessageTimeToLiveChecker
extends Object
implements Task

The Message TTL Checker looks for expired message deadlines, and for each of those it writes an EXPIRE Message command.

To prevent that it clogs the log stream with too many EXPIRE Message commands, it only writes a limited number of these commands in a single run of execute(TaskResultBuilder).

It determines whether to reschedule itself immediately, or after the configured interval. If it reschedules itself immediately, then it will continue where it left off the last time. Otherwise, it starts with the first expired message deadline it can find.

Constructor Summary

Constructors

Constructor	Description
MessageTimeToLiveChecker(Duration executionInterval, int batchLimit, boolean enableMessageTtlCheckerAsync, ProcessingScheduleService scheduleService, MessageState messageState, InstantSource clock)

Method Summary

Modifier and Type	Method	Description
TaskResult	execute(TaskResultBuilder taskResultBuilder)

Methods inherited from class java.lang.Object

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

Constructor Details

MessageTimeToLiveChecker

public MessageTimeToLiveChecker(Duration executionInterval,
 int batchLimit,
 boolean enableMessageTtlCheckerAsync,
 ProcessingScheduleService scheduleService,
 MessageState messageState,
 InstantSource clock)

Method Details

execute

public TaskResult execute(TaskResultBuilder taskResultBuilder)

Specified by:

execute in interface Task