org.springframework.kafka.annotation

Annotation Type KafkaHandler

@Target(value={METHOD,ANNOTATION_TYPE})
 @Retention(value=RUNTIME)
 @MessageMapping
 @Documented
public @interface KafkaHandler

Annotation that marks a method to be the target of a Kafka message listener within a class that is annotated with KafkaListener.

See the KafkaListener for information about permitted method signatures and available parameters.

It is important to understand that when a message arrives, the method selection depends on the payload type. The type is matched with a single non-annotated parameter, or one that is annotated with @Payload. There must be no ambiguity - the system must be able to select exactly one method based on the payload type.

Author:

Gary Russell

See Also:

EnableKafka, KafkaListener, KafkaListenerAnnotationBeanPostProcessor