Package org.apache.storm.kafka.spout.subscription

## Class TopicAssigner

- java.lang.Object
- - org.apache.storm.kafka.spout.subscription.TopicAssigner

- All Implemented Interfaces:
    `Serializable`

      public class TopicAssigner
      extends Object
      implements Serializable

  Handles assigning partitions to the consumer and updating the rebalance listener.
  See Also:
    Serialized Form

- - ### Constructor Summary

    Constructors
    Constructor | Description
    --- | ---
    `TopicAssigner()` |

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method | Description
    --- | --- | ---
    `<K,​V> boolean` | `assignPartitions​(org.apache.kafka.clients.consumer.Consumer<K,​V> consumer, Set<org.apache.kafka.common.TopicPartition> newAssignment, org.apache.kafka.clients.consumer.ConsumerRebalanceListener listener)` | Assign partitions to the KafkaConsumer.

    - ### Methods inherited from class java.lang.Object

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

- - ### Constructor Detail

    - #### TopicAssigner

          public TopicAssigner()

  - ### Method Detail

    - #### assignPartitions

          public <K,​V> boolean assignPartitions​(org.apache.kafka.clients.consumer.Consumer<K,​V> consumer,
                                                      Set<org.apache.kafka.common.TopicPartition> newAssignment,
                                                      org.apache.kafka.clients.consumer.ConsumerRebalanceListener listener)

      Assign partitions to the KafkaConsumer.
      Parameters:
        `consumer` - The Kafka consumer to assign partitions to
        `newAssignment` - The partitions to assign.
        `listener` - The rebalance listener to call back on when the assignment changes
      Returns:
        a boolean value indicating whether the partition assignment changed