Package org.apache.kafka.streams

Interface StreamsMetadata

public interface StreamsMetadata
Metadata of a Kafka Streams client.

  • Method Details

    • hostInfo

      HostInfo hostInfo()
      The value of StreamsConfig.APPLICATION_SERVER_CONFIG configured for the Streams client.
      Returns:
      HostInfo corresponding to the Streams client

    • stateStoreNames

      Set<String> stateStoreNames()
      Names of the state stores assigned to active tasks of the Streams client.
      Returns:
      names of the state stores assigned to active tasks

    • topicPartitions

      Set<TopicPartition> topicPartitions()
      Source topic partitions of the active tasks of the Streams client.
      Returns:
      source topic partitions of the active tasks

    • standbyTopicPartitions

      Set<TopicPartition> standbyTopicPartitions()
      Changelog topic partitions for the state stores the standby tasks of the Streams client replicates.
      Returns:
      set of changelog topic partitions of the standby tasks

    • standbyStateStoreNames

      Set<String> standbyStateStoreNames()
      Names of the state stores assigned to standby tasks of the Streams client.
      Returns:
      names of the state stores assigned to standby tasks

    • host

      String host()
      Host where the Streams client runs. This method is equivalent to StreamsMetadata.hostInfo().host();
      Returns:
      the host where the Streams client runs

    • port

      int port()
      Port on which the Streams client listens. This method is equivalent to StreamsMetadata.hostInfo().port();
      Returns:
      the port on which Streams client listens

    • equals

      boolean equals​(Object o)
      Compares the specified object with this StreamsMetadata. Returns true if and only if the specified object is also a StreamsMetadata and for both hostInfo() are equal, and stateStoreNames(), topicPartitions(), standbyStateStoreNames(), and standbyTopicPartitions() contain the same elements.
      Overrides:
      equals in class Object
      Returns:
      true if this object is the same as the obj argument; false otherwise.

    • hashCode

      int hashCode()
      Returns the hash code value for this TaskMetadata. The hash code of a list is defined to be the result of the following calculation: 
       
 Objects.hash(hostInfo(), stateStoreNames(), topicPartitions(), standbyStateStoreNames(), standbyTopicPartitions());
      Overrides:
      hashCode in class Object
      Returns:
      a hash code value for this object.