Package io.namastack.outbox

Class OutboxProcessingScheduler

  • All Implemented Interfaces:
    
public final class OutboxProcessingScheduler

    Scheduler for processing outbox records.

    This scheduler coordinates with the partition coordinator to only process records assigned to the current instance, enabling horizontal scaling across multiple application instances. It uses a configurable TaskExecutor to enable parallel processing of multiple aggregateIds, while still guaranteeing strict ordering per aggregateId.

    Since:

    0.2.0

    Author:

    Roland Beisel

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Class Description

    • Field Summary

      Fields 
      Modifier and Type Field Description

    • Enum Constant Summary

      Enum Constants 
      Enum Constant Description

    • Method Summary

      Modifier and Type Method Description
      final Unit process() Main processing method that runs on a scheduled interval.

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • OutboxProcessingScheduler

        OutboxProcessingScheduler(OutboxRecordRepository recordRepository, OutboxRecordProcessor recordProcessor, PartitionCoordinator partitionCoordinator, OutboxInstanceRegistry instanceRegistry, TaskExecutor taskExecutor, OutboxRetryPolicy retryPolicy, OutboxProperties properties, Clock clock)
        Parameters:
        recordRepository - Repository for accessing outbox records
        recordProcessor - Processor for handling individual records
        partitionCoordinator - Coordinator for partition assignments
        instanceRegistry - Registry for instance management
        taskExecutor - TaskExecutor for parallel processing of aggregateIds
        retryPolicy - Policy for determining retry behavior
        properties - Configuration properties
        clock - Clock for time-based operations

    • Method Detail

      • process

        @Scheduled(fixedDelayString = "${outbox.poll-interval}") final Unit process()

        Main processing method that runs on a scheduled interval.

        Only processes records from partitions assigned to this instance, ensuring proper load distribution and avoiding conflicts.