Interface ProducerListener<K,​V>

  • Type Parameters:
    K - the key type.
    V - the value type.
    All Known Implementing Classes:
    CompositeProducerListener, LoggingProducerListener

    public interface ProducerListener<K,​V>
    Listener for handling outbound Kafka messages. Exactly one of its methods will be invoked, depending on whether the write has been acknowledged or not. Its main goal is to provide a stateless singleton delegate for Callbacks, which, in all but the most trivial cases, requires creating a separate instance per message.
    Author:
    Marius Bogoevici, Gary Russell, Endika GutiƩrrez
    See Also:
    Callback
    • Method Summary

      All Methods Instance Methods Default Methods Deprecated Methods 
      Modifier and Type Method Description
      default void onError​(org.apache.kafka.clients.producer.ProducerRecord<K,​V> producerRecord, java.lang.Exception exception)
      default void onError​(org.apache.kafka.clients.producer.ProducerRecord<K,​V> producerRecord, org.apache.kafka.clients.producer.RecordMetadata recordMetadata, java.lang.Exception exception)
      Invoked after an attempt to send a message has failed.
      default void onSuccess​(org.apache.kafka.clients.producer.ProducerRecord<K,​V> producerRecord, org.apache.kafka.clients.producer.RecordMetadata recordMetadata)
      Invoked after the successful send of a message (that is, after it has been acknowledged by the broker).
    • Method Detail

      • onSuccess

        default void onSuccess​(org.apache.kafka.clients.producer.ProducerRecord<K,​V> producerRecord,
                               org.apache.kafka.clients.producer.RecordMetadata recordMetadata)
        Invoked after the successful send of a message (that is, after it has been acknowledged by the broker).
        Parameters:
        producerRecord - the actual sent record
        recordMetadata - the result of the successful send operation
      • onError

        @Deprecated
        default void onError​(org.apache.kafka.clients.producer.ProducerRecord<K,​V> producerRecord,
                             java.lang.Exception exception)
        Invoked after an attempt to send a message has failed.
        Parameters:
        producerRecord - the failed record
        exception - the exception thrown
      • onError

        default void onError​(org.apache.kafka.clients.producer.ProducerRecord<K,​V> producerRecord,
                             @Nullable
                             org.apache.kafka.clients.producer.RecordMetadata recordMetadata,
                             java.lang.Exception exception)
        Invoked after an attempt to send a message has failed.
        Parameters:
        producerRecord - the failed record
        recordMetadata - The metadata for the record that was sent (i.e. the partition and offset). If an error occurred, metadata will contain only valid topic and maybe the partition. If the partition is not provided in the ProducerRecord and an error occurs before partition is assigned, then the partition will be set to RecordMetadata.UNKNOWN_PARTITION.
        exception - the exception thrown
        Since:
        2.6.2