Package io.smallrye.reactive.messaging.kafka.commit

Interface CheckpointStateStore

All Known Implementing Classes:
FileCheckpointStateStore
public interface CheckpointStateStore
Remote state store for checkpointing Kafka processing state

  • Nested Class Summary

    Nested Classes
    Modifier and Type
    Interface
    Description
    static interface 
    CheckpointStateStore.Factory
    Factory interface for CheckpointStateStore

  • Method Summary

    Modifier and Type
    Method
    Description
    default void
    close()
    Close the state store on channel termination
    io.smallrye.mutiny.Uni<Map<org.apache.kafka.common.TopicPartition,ProcessingState<?>>>
    fetchProcessingState(Collection<org.apache.kafka.common.TopicPartition> partitions)
    Fetch the latest processing state for given topic-partitions.
    io.smallrye.mutiny.Uni<Void>
    persistProcessingState(Map<org.apache.kafka.common.TopicPartition,ProcessingState<?>> state)
    Persist the given processing state in the state store

  • Method Details

    • fetchProcessingState

      io.smallrye.mutiny.Uni<Map<org.apache.kafka.common.TopicPartition,ProcessingState<?>>> fetchProcessingState(Collection<org.apache.kafka.common.TopicPartition> partitions)
      Fetch the latest processing state for given topic-partitions.

      Called on Vert.x event loop context

      Parameters:
      partitions - set of topic-partitions
      Returns:
      the Uni completing with the map of processing state by topic-partition

    • persistProcessingState

      io.smallrye.mutiny.Uni<Void> persistProcessingState(Map<org.apache.kafka.common.TopicPartition,ProcessingState<?>> state)
      Persist the given processing state in the state store

      Called on Vert.x event loop context

      Parameters:
      state - map of processing state by topic-partition
      Returns:
      the Uni completing when the persist operation is completed.

    • close

      default void close()
      Close the state store on channel termination