Interface Partitioner

    • Method Detail

      • partition

        int partition​(String topic,
                      Object key,
                      byte[] keyBytes,
                      Object value,
                      byte[] valueBytes,
                      Cluster cluster)
        Compute the partition for the given record.
        Parameters:
        topic - The topic name
        key - The key to partition on (or null if no key)
        keyBytes - The serialized key to partition on( or null if no key)
        value - The value to partition on or null
        valueBytes - The serialized value to partition on or null
        cluster - The current cluster metadata
      • onNewBatch

        @Deprecated
        default void onNewBatch​(String topic,
                                Cluster cluster,
                                int prevPartition)
        Deprecated.
        Since 3.3.0
        Note this method is only implemented in DefaultPartitioner and UniformStickyPartitioner which are now deprecated. See KIP-794 for more info.

        Notifies the partitioner a new batch is about to be created. When using the sticky partitioner, this method can change the chosen sticky partition for the new batch.

        Parameters:
        topic - The topic name
        cluster - The current cluster metadata
        prevPartition - The partition previously selected for the record that triggered a new batch