Package org.apache.pulsar.reactive.client.api

Interface MessageGroupingFunction

public interface MessageGroupingFunction
Function to group messages that will be processed by the same instance of concurrent message handler.

  • Method Summary

    Modifier and Type
    Method
    Description
    int
    resolveProcessingGroup(org.apache.pulsar.client.api.Message<?> message, int numberOfGroups)
    Resolves a processing group for a message.

  • Method Details

    • resolveProcessingGroup

      int resolveProcessingGroup(org.apache.pulsar.client.api.Message<?> message, int numberOfGroups)
      Resolves a processing group for a message. This is used for implementing key-ordered message processing with ReactiveMessagePipelineBuilder.ConcurrentOneByOneMessagePipelineBuilder
      Parameters:
      message - the Pulsar message
      numberOfGroups - maximum number of groups
      Returns:
      processing group for the message, in the range of 0 to numberOfGroups, exclusive