Interface RecordTranslator<K,​V>

    • Field Detail

      • DEFAULT_STREAM

        static final List<String> DEFAULT_STREAM
    • Method Detail

      • apply

        List<Object> apply​(org.apache.kafka.clients.consumer.ConsumerRecord<K,​V> record)
        Translate the ConsumerRecord into a list of objects that can be emitted.
        Specified by:
        apply in interface Func<K,​V>
        Parameters:
        record - the record to translate
        Returns:
        the objects in the tuple. Return a KafkaTuple if you want to route the tuple to a non-default stream. Return null to discard an invalid ConsumerRecord if KafkaSpoutConfig.Builder.setEmitNullTuples(boolean) is set to false.
      • getFieldsFor

        Fields getFieldsFor​(String stream)
        Get the fields associated with a stream. The streams passed in are returned by the streams() method.
        Parameters:
        stream - the stream the fields are for
        Returns:
        the fields for that stream.
      • streams

        default List<String> streams()
        Get the list of streams this translator will handle.
        Returns:
        the list of streams that this will handle.